Boiler Not Heating: Repair It or Replace It?

If your boiler is not heating your home properly, it can quickly become frustrating, even in summer. In June, many Essex homeowners only notice a problem when they switch on the hot water, test the heating ahead of autumn, or find one part of the system is not working as it should. If you are dealing with no heating or unreliable hot water in Chelmsford or the surrounding Essex area, the big question is usually simple. Should you repair the boiler, or is it time to replace it?

At Assured Heating Essex, we help homeowners make that decision with clear advice, safe workmanship and a practical, long-term view.

Start with the symptoms, not the assumption

A boiler that is not heating properly does not always need replacing. In many cases, the fault may be isolated and repairable. Equally, repeated issues can be a sign that the whole system is becoming unreliable.

Common signs something is wrong include:

• radiators staying cool or only warming in places
• hot water taking longer than usual
• heating cutting in and out
• boiler pressure dropping repeatedly
• unusual noises from the boiler or pipework
• thermostat settings not matching room temperature
• the boiler showing a fault code or failing to fire up

For homeowners looking for a heating engineer in Chelmsford, it helps to think about the full pattern of behaviour, rather than one single symptom. A proper diagnosis from a qualified engineer is the safest and most reliable next step.

When a boiler repair may be the right choice

If your boiler has generally been dependable and the fault is recent, a repair is often the sensible option. This is particularly true when the issue is linked to a specific component or a system setting that needs professional attention.

Repair is often suitable when:

1. The boiler is relatively modern and has otherwise performed well.
2. The fault is isolated, rather than one of several recurring issues.
3. Your heating system is in good overall condition, with no wider circulation problems.
4. Servicing has been kept up to date, so the boiler has been maintained properly.

A boiler repair may also make sense if the problem is connected to pressure loss, controls, ignition, or another fault that can be identified clearly during inspection. If you need support with a fault, you can learn more about our boiler repair service.

When replacement becomes the better long-term option

Sometimes, a repair only solves the immediate issue, not the wider reliability problem. If your boiler is older, breaking down more often, or struggling to heat your home evenly, replacing it may be the better decision for comfort and peace of mind.

This can be especially relevant for households in Chelmsford and across Essex who want dependable heating before the colder months return.

Replacement may be worth considering if:

• your boiler has had several faults within a short period
• heating performance has noticeably declined over time
• parts are becoming harder to source
• the boiler is no longer a good match for your household needs
• you want to improve efficiency and system reliability

For some homes, this is also a chance to review whether the current setup still suits the property. A growing family, an extension, updated radiators, or changes to hot water demand can all affect what works best.

If replacement is the right path, our new gas boiler service can help you understand the next steps, and our Worcester Bosch boiler options are also worth exploring if you want an accredited installation.

Other causes of poor heating that are not the boiler itself

It is important to remember that a boiler is not always the root of the issue. Sometimes the heating problem sits elsewhere in the system.

Possible causes include:

• sludge or debris affecting circulation
• radiator balancing issues
• controls or thermostat faults
• pump problems
• trapped air in the system
• poor flow through older pipework

In these cases, replacing the boiler alone may not fully solve the problem. A wider system check can reveal whether support such as a heating upgrade or power flushing for your system would be more appropriate.

Why summer is a good time to deal with heating problems

June is often a practical time to act. Your heating may not be in daily use, which gives you more flexibility to investigate faults without the pressure of winter conditions. It also means you can sort out poor performance before the first cold spell catches you out.

For homeowners and landlords in Essex, summer is a useful window for:

• checking boiler reliability
• arranging boiler servicing
• planning a replacement if needed
• improving central heating performance before autumn
• reviewing wider home comfort, including cooling options

If warmer bedrooms or stuffy living spaces are also becoming an issue, some households use this time to look at air conditioning installation in Essex for year-round comfort.

What to do next if your boiler is not heating

If your boiler is not working properly, the best approach is not to guess. A professional assessment helps you understand whether the fault is repairable, whether the wider heating system needs attention, or whether replacement would offer better value over time.

Assured Heating Essex supports homeowners across Chelmsford and the wider Essex area with trusted advice on boiler servicing, repairs, replacements, central heating and more. If your boiler is not heating as it should, book online or get in touch with Assured Heating Essex for straightforward guidance from a local, accredited team.

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DIY Boiler Installation: Is It Safe for Essex Homes?

For many homeowners, it is tempting to wonder whether fitting a boiler yourself could save time or hassle. In reality, DIY boiler installation is not safe, and in the UK it is not work that should be carried out by anyone who is not properly qualified and legally registered to do so. If you are considering a new boiler in Chelmsford or anywhere across Essex, the safest route is always to use a professional, accredited engineer.

At Assured Heating Essex, we regularly help homeowners who want clear advice about replacing older heating systems, solving hot water problems in Essex, or choosing the right setup for their property. A boiler is one of the most important appliances in your home, so installation must be done correctly from the start.

Why DIY boiler installation is not a safe option

Boilers connect into systems that affect gas, oil, heating controls, water and ventilation. If any part of the installation is handled incorrectly, it can create serious safety risks and lead to poor performance, breakdowns or long-term damage.

Key risks of doing it yourself

A DIY installation can lead to:

• Unsafe gas or oil connections
• Poor combustion or ventilation issues
• Water leaks and pressure problems
• Damage to the central heating system
• Invalid manufacturer warranties
• Non-compliance with current safety regulations
• Reduced efficiency and unreliable heating

This is especially important for households with children, older family members, or tenants. If you are a landlord, safety responsibilities are even more important, and heating work must meet legal standards.

What a professional boiler installation involves

A proper boiler installation is far more than simply swapping one unit for another. A qualified heating engineer in Chelmsford will assess the property, the existing system and the heating demands of the home before any work begins.

In many cases, the process includes checking pipework, flue position, system cleanliness, controls, water pressure and overall compatibility. It may also involve advice on whether your home is better suited to a combi, system or regular boiler, or whether related improvements such as central heating services, underfloor heating or an unvented hot water cylinder would be beneficial.

It is about safety and long-term reliability

A professional installation helps make sure:

1. The boiler is correctly sized for the home
2. The flue is fitted in the right location
3. Gas or oil work is completed safely
4. The heating system is commissioned properly
5. The boiler runs efficiently and as intended
6. The manufacturer warranty remains valid

That matters in summer as much as winter. June is often a practical time for Essex homeowners to organise heating upgrades while the boiler is under less strain and before the colder months return.

Why accreditation and registration matter

If you need to replace your boiler in Essex, always check that the engineer is appropriately registered for the type of work being carried out. For gas appliances, that means Gas Safe registration. For oil systems, the installer should hold the relevant Oftec credentials.

These standards are there to protect homeowners. They are not just paperwork. They help ensure that installations are completed safely, tested correctly and signed off in line with UK requirements. You can read more about gas safety in Essex if you are unsure what to look for.

For households considering Worcester Bosch products, using a trusted installer is also important for protecting product support and ensuring the boiler is fitted to manufacturer guidance. Assured Heating Essex works with respected heating brands and provides support for Worcester Bosch boilers as part of a professional home heating service.

Common problems after poor installation

When a boiler has not been installed correctly, the problems may not always appear straight away. Some homeowners only notice issues weeks or months later.

Warning signs can include:

• Uneven heating around the home
• Boiler pressure dropping repeatedly
• Strange noises from the system
• No hot water at certain times
• Radiators taking too long to warm up
• Frequent fault codes or resets

If you are already dealing with boiler pressure checks in Essex or ongoing heating issues, it is worth having the whole system inspected by a qualified professional rather than guessing at the cause.

What to do instead of attempting it yourself

If your boiler is ageing, unreliable or no longer meeting your household needs, the best next step is to get expert guidance. A reputable heating engineer in Chelmsford can explain your options clearly, assess your property and recommend the most suitable solution.

You may also want to think about the bigger picture. Some homes benefit from system cleaning, updated heating controls, improved hot water storage, or even air conditioning for year-round comfort during warmer Essex summers. Good advice should look at how your home works as a whole, not just the boiler on its own.

Safe, local help for homeowners in Essex

DIY boiler installation is not safe, and it is not worth the risk. The right installation protects your home, your family and your long-term heating reliability. Whether you need a boiler service in Chelmsford, help with a faulty system, or guidance on a full replacement, professional support gives you peace of mind.

If you are looking for trusted local advice, Assured Heating Essex is here to help. Our team supports homeowners across Chelmsford and the wider Essex area with safe, professional heating services. To discuss your options, book online or get in touch with Assured Heating Essex today.

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What Shapes Boiler Replacement Work in Essex?

If you are planning to replace your boiler in Essex, it is natural to wonder why one installation involves more work than another. While homeowners often focus on the boiler itself, the wider job can vary depending on your property, your existing system and the improvements needed to keep everything safe and running efficiently.

For homes in Chelmsford and the surrounding areas, summer can be a practical time to think ahead. Your heating is under less pressure in June, which makes it easier to assess your current setup before autumn arrives. At Assured Heating Essex, we often help customers understand what is involved in a boiler replacement, in clear language and without unnecessary jargon.

Why boiler replacement work can differ from home to home

No two properties are exactly the same. Even if two households choose a similar boiler, the work involved may be quite different. A heating engineer in Chelmsford will usually look at the full heating and hot water system, not just the appliance on the wall.

Common factors include:

• The age and condition of your current boiler
• Whether you are keeping the same boiler type or changing to a different system
• The location of the boiler and whether pipework needs altering
• The state of your radiators and central heating controls
• Ventilation, flue position and condensate drainage requirements
• Whether your property uses gas or oil
• Any hot water cylinder or tank arrangements already in place

This is why a proper survey matters. A trusted Heating Engineer Essex homeowners can rely on should assess the whole picture before recommending the best option.

The boiler itself is only one part of the job

When people think about replacing a boiler in Essex, they often picture the new unit and little else. In reality, the appliance is only one part of a complete installation.

A safe, reliable replacement may also involve system checks, upgrades and adjustments so that the new boiler works as intended. That can include modern controls, system cleansing, filter installation or changes to pipework.

If you are considering our new gas boiler service, it helps to think of the installation as a complete heating upgrade rather than a simple swap.

System compatibility matters

A newer boiler must suit the heating demands of your home and work properly with the rest of the system. This is particularly important in properties with older radiators, existing hot water cylinders or previous extensions.

If the system is not prepared correctly, performance can suffer. You may notice uneven heating, noise in the pipework or ongoing reliability issues. That is why experienced engineers take time to check compatibility before any installation goes ahead.

Boiler size still plays a role

Although this article is not a guide to what size boiler you need, output still matters. A boiler that is too small may struggle to keep up. One that is too large may be less efficient for your household's needs. The right recommendation depends on the size of your home, number of bathrooms and typical hot water use.

Extra work that may be needed during installation

Some boiler replacements are straightforward. Others reveal issues that need attention to protect the new system and support long-term performance.

Additional work can include:

1. Updating old controls so your heating is easier to manage.
2. Improving circulation if sludge or debris is affecting the system.
3. Repositioning the flue to meet current requirements.
4. Adjusting pipework to suit a different boiler model or layout.
5. Checking the condition of the hot water cylinder in system-based homes.
6. Making recommendations if radiators are heavily worn or inefficient.

For some households, a power flushing service may be recommended where the system shows signs of build-up. This can help protect the new boiler and improve overall circulation.

Why accredited installation is so important

A boiler replacement is not just about convenience. It is also about safety, compliance and peace of mind. Gas and oil appliances should always be installed by appropriately registered professionals.

For homeowners searching for boiler installation near me, it is worth looking for a company with recognised accreditations, local experience and a strong reputation for aftercare. Assured Heating Essex works with homeowners across Chelmsford and the wider Essex area, providing a reassuring and professional service focused on safe, dependable heating.

If your home uses an oil-fired system, our Oftec-registered services are also available for suitable properties in Essex.

Summer is a good time to plan ahead

June is often one of the best times to review your heating system. If your boiler has become unreliable, or if you have noticed repeated faults, unusual noises or hot water problems in Essex, it can make sense to act before the colder months return.

Planning ahead in summer can help you:

• Avoid the rush when breakdown season starts
• Give yourself time to consider the right setup for your home
• Combine boiler work with other upgrades, such as heating controls
• Check whether your current system would benefit from servicing, flushing or ongoing care

If your existing appliance is still running but showing its age, arranging an inspection now can help you decide whether repair, servicing or replacement is the most sensible next step.

Think about the whole heating system, not just the boiler

A replacement boiler can be a very positive upgrade, but the best results come from looking at the wider system too. Radiators, controls, cylinder arrangements and water quality all affect performance.

That is especially true in family homes around Chelmsford, where heating and hot water demand can vary a great deal from one property to the next. A thoughtful approach helps ensure your new setup is reliable, efficient and suitable for everyday life.

If you are also planning broader improvements, support is available for central heating, underfloor heating, unvented hot water and even year-round comfort options such as air conditioning installation in Essex.

Speak to a local Essex heating specialist

If you are thinking about replacing your boiler in Chelmsford or the surrounding area, professional advice can make the process much clearer. Assured Heating Essex can assess your current system, explain what work may be involved and help you choose a safe, suitable solution for your home.

To take the next step, contact Assured Heating Essex and arrange a survey with a local team you can trust.

The post What Shapes Boiler Replacement Work in Essex? appeared first on Assured Heating Essex.

How to Tell If a Boiler Quote Is Fair in Essex

If you are planning to replace your boiler in Essex, it is natural to want confidence that the quote you receive is fair, clear and based on the right solution for your home. For many homeowners in Chelmsford and the surrounding areas, the challenge is not just finding a boiler installation near them. It is understanding what a professional, trustworthy quote should actually include.

A fair boiler quote is not simply the shortest or the cheapest document. It should give you enough information to compare like for like, understand what work is being carried out, and feel reassured that safety, compliance and long-term performance have been properly considered.

What a fair boiler quote should include

When a heating engineer in Chelmsford or elsewhere in Essex prepares a proper quotation, it should be specific to your property and heating needs. It should not feel vague or rushed.

Look for these key points:

• the recommended boiler type and output, explained in plain language
• whether it is a combi boiler installation, a system change or a like-for-like replacement
• details of any controls being fitted or upgraded
• information about filter protection, flue components and any required pipework changes
• whether system cleaning or power flushing has been recommended
• what testing, commissioning and handover are included
• confirmation that the work will be carried out by the appropriate registered engineer
• warranty information and any servicing requirements needed to keep that warranty valid

A quote should help you understand why a certain boiler has been recommended, not just present a brand and model with no explanation.

Signs the quote has been prepared properly

A reliable boiler installation quote usually starts with a proper assessment. That may involve a home visit or a thorough discussion about your current heating system, hot water use, property size and any ongoing issues.

It reflects your home, not a generic template

If you have been given exactly the same wording and recommendation as everyone else, that is a warning sign. Homes across Chelmsford and Essex vary widely, from compact modern properties to older family houses with more complex heating requirements.

A fair quote should reflect things such as:

• the number of bathrooms
• your typical hot water demand
• the age and condition of the current system
• whether you have regular pressure loss or hot water problems in Essex
• any plans for future upgrades, such as underfloor heating or smart controls

It explains any extra work clearly

Not every installation is straightforward. Sometimes the quote may include additional work such as upgrading controls, improving pipework, relocating the boiler, or addressing sludge in the system.

That does not make the quote unfair. In many cases, it shows the engineer is being thorough. The important thing is that the reason for each recommendation is explained clearly.

For example, if system cleaning is advised, it should be linked to protecting the new boiler and supporting efficient performance. If you are unsure, ask the engineer to talk you through it in plain English.

Red flags to watch out for

A fair quote should leave you informed, not confused. Be cautious if you notice any of the following:

• the quote is very brief and missing important details
• there is no mention of Gas Safe registration or relevant accreditation
• the boiler recommended seems oversized or undersized for the property
• the installer is unwilling to explain their reasoning
• there is no reference to system health, controls or commissioning
• the warranty terms are unclear
• you feel pressured to agree quickly without time to review the details

This is especially important if you are looking to replace your boiler in Essex before the colder months return. Summer is a useful time to plan ahead, but there should still be time for careful decision-making.

Why the cheapest quote is not always the fairest

It is understandable to compare quotes closely, especially for a major home improvement. However, the lowest figure does not always represent the best value.

A quote may appear lower because important elements have been left out, such as system cleaning, upgraded controls, warranty registration, or proper aftercare. In some cases, a lower quote can also mean less time allowed for the work, which is not something any homeowner wants when gas safety and heating reliability are involved.

A fair quote balances suitability, safety and long-term performance. That is particularly important if you want dependable heating and hot water for the years ahead.

If you are comparing brands, it can help to look at options from recognised manufacturers such as Worcester Bosch boilers, especially when fitted by an accredited local installer.

Questions worth asking before you decide

Before accepting a quote for boiler installation in Chelmsford or nearby areas, ask a few practical questions:

Helpful questions for homeowners

1. Why is this boiler the right fit for my home?
2. Does the quote include all necessary parts and commissioning?
3. Are controls being upgraded as part of the work?
4. Is system cleaning recommended, and why?
5. What do I need to do to keep the warranty valid?
6. Will you explain how the new system works after installation?

A professional heating engineer in Essex should be happy to answer these questions clearly. Good communication is often one of the strongest signs that you are dealing with a trustworthy company.

Think beyond installation day

A fair boiler quote should also help you think about ongoing care. Regular servicing matters for safety, efficiency and warranty compliance. If the company also offers ongoing support, that can be a real advantage.

You can learn more about boiler servicing in Chelmsford and whether a longer-term care plan for your heating system might suit your home.

For homeowners and landlords in Chelmsford, Rettendon and across Essex, reassurance often comes from choosing a company that takes time to assess the property properly, explains the options clearly, and puts safety first.

Assured Heating Essex believes a good quote should be honest, easy to understand and tailored to your home. If you are planning a boiler replacement and want clear advice from a local, accredited team, get in touch and we will be happy to help.

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What’s Included in a Complete Boiler Replacement?

If you are planning to replace your boiler in Essex, it is natural to wonder what the job actually includes. A complete boiler replacement is about far more than simply removing one unit and fitting another. Done properly, it should consider safety, performance, efficiency and how well your whole heating system works together.

For homeowners in Chelmsford and the surrounding Essex area, summer can be a practical time to plan heating work. With the boiler under less day to day pressure in June, it is often easier to arrange upgrades before the colder months return.

At Assured Heating Essex, we often find that customers want a clear, straightforward explanation of what happens during a boiler replacement. Here is what is usually included.

An assessment of your home and heating needs

A proper boiler replacement should begin with an assessment, not guesswork. Before recommending a new appliance, a qualified heating engineer in Chelmsford or elsewhere in Essex should look at your property, your current system and your hot water demands.

This usually includes checking:

• The size of your home
• The number of bathrooms
• How many radiators you have
• Your current boiler type
• The age and condition of the wider heating system
• Any ongoing issues such as poor hot water or uneven heating

This stage matters because the right replacement is not simply the most powerful boiler. It needs to be suited to your household. If you have recently extended your home, added a bathroom or struggled with hot water problems in Essex, this should all be taken into account.

For more detail on the process, you can read what is involved in installing a new boiler.

Removal of the old boiler

Once the replacement has been planned, the old boiler is safely disconnected and removed. This part of the work should always be carried out by a Gas Safe registered engineer for gas appliances, or an Oftec registered engineer for relevant oil systems.

The removal stage may also include taking out outdated components that are no longer suitable for the new setup. In some homes, pipework or controls may need updating as part of the installation.

Safe isolation and compliance

Safety is a key part of any boiler replacement. The engineer should isolate the relevant services, remove the old appliance correctly and ensure all work complies with current regulations and manufacturer guidance.

This is one reason many homeowners looking to replace their boiler in Essex choose an accredited local company. Proper installation protects both your home and your warranty.

Installation of the new boiler and essential components

The central part of the job is, of course, fitting the new boiler itself. Whether you are moving to a combi boiler installation in Chelmsford, replacing an older regular boiler, or updating an oil appliance, the installation should include all the key components needed for safe and reliable operation.

A complete boiler replacement commonly includes:

1. Installation of the new boiler
2. Connecting the boiler to the existing or updated pipework
3. Fitting or upgrading the flue
4. Installing or checking the condensate pipe where required
5. Wiring and testing the controls
6. Setting up the system for correct operation

In some cases, the job may also involve replacing the pump, valves or filters if the system would benefit from it. If your installer recommends these additions, it is usually because they support the long term performance of the new boiler.

If you are considering a Worcester Bosch model, you can learn more about Worcester Bosch boilers.

Heating controls and system efficiency checks

A new boiler works best when paired with suitable controls. A complete replacement may include checking your thermostat, programmer or smart controls to make sure they are compatible and easy to use.

Why controls matter

Modern controls help you manage comfort more efficiently across the year. In summer, that might mean only heating water when needed. In winter, it can help you maintain steady room temperatures without unnecessary waste.

For some Essex homes, this is also a good time to look at wider heating upgrades such as underfloor heating, radiator improvements or even air conditioning installation in Essex for year round comfort.

System cleaning, testing and commissioning

Before a new boiler is left running, the wider system should be checked carefully. This can include cleaning work to reduce sludge and debris, which helps protect the new appliance.

Depending on the condition of the system, your engineer may recommend a flush. In some properties, especially where radiators have cold spots or circulation issues, power flushing can support better performance.

The final stages of a complete boiler replacement should include:

• Pressure checks
• Leak checks
• Gas rate or combustion checks where appropriate
• Testing the controls
• Commissioning the boiler to manufacturer standards
• Confirming that heating and hot water are working correctly

These steps are essential. They help ensure the boiler is operating safely, efficiently and as intended from day one.

Handover, paperwork and aftercare

A complete boiler replacement should finish with a proper handover. You should be shown how to use the new controls, how to adjust basic settings and what to do if you notice a fault.

You should also receive the relevant paperwork, which may include warranty details, building regulation notification and service recommendations.

Many homeowners in Chelmsford also choose to arrange ongoing support after installation. Regular servicing helps protect the boiler and gives peace of mind ahead of winter. If you want to keep your system in good condition, take a look at our boiler servicing in Chelmsford.

A boiler replacement should support the whole system

The most important thing to remember is that a boiler replacement is not just a box swap. A well planned job should look at your home as a whole, from hot water demand to radiator performance and heating controls.

If you are thinking about boiler replacement in Chelmsford or elsewhere in Essex, choosing an experienced, accredited installer means the work can be carried out safely and with long term reliability in mind.

If you would like clear advice on replacing your boiler, Assured Heating Essex is here to help. Get in touch to discuss your home, your heating needs and the right next steps for a safe, professional installation.

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High-Efficiency Boilers: Are They Worth It in Essex?

If you are planning to replace your boiler in Essex, one of the first questions you may ask is whether a high-efficiency model is really worth choosing. For many homeowners and landlords in Chelmsford and the surrounding areas, the answer is often yes, but it depends on your property, your heating habits and the condition of your current system.

A modern efficient boiler can do more than simply heat your home. It can improve comfort, support lower energy use and give you greater confidence that your heating system is ready for the months ahead. In June, when your boiler is under less day to day pressure, it is often a practical time to think ahead and plan any upgrades before autumn arrives.

What makes a boiler high efficiency?

In simple terms, a high-efficiency boiler is designed to make better use of the fuel it burns. Instead of allowing as much heat to escape, it captures and uses more of that heat within your home’s heating and hot water system.

For Essex households, this can be especially useful in homes where the existing boiler is older, less reliable or struggling to keep up with demand. If you have noticed uneven heating, regular faults or no hot water in your Chelmsford home, it may be a sign that your current boiler is no longer performing as it should.

A properly specified modern boiler can help with:

• More consistent heating across the home
• Better hot water performance
• Improved system reliability
• Lower wasted energy
• Quieter day to day operation

When the extra investment often makes sense

A high-efficiency boiler is not just about the appliance itself. The real value comes from choosing the right boiler for your home and making sure it is installed correctly by a qualified heating engineer in Chelmsford or the wider Essex area.

Your current boiler is ageing or unreliable

If your boiler has started needing frequent attention, or you are regularly searching for boiler repair in Chelmsford, replacement can become the more sensible long-term option. Older boilers are often less efficient and may struggle to deliver the level of comfort a busy household needs.

You want better performance, not just a like-for-like swap

Many homeowners focus only on getting the heating back on quickly. That is understandable, especially if you have had boiler fault finding carried out after a breakdown. However, if you are already investing in a replacement, it is worth considering whether a more efficient model could improve everyday comfort as well.

You are planning ahead before winter

Summer is a useful time to assess your heating system. If your boiler pressure has been dropping, or you have experienced hot water problems in Essex earlier this year, acting now can help you avoid emergency issues when colder weather returns.

What else affects whether it is worth it?

The boiler itself is only part of the picture. To get the most from a new installation, your engineer should also consider the wider heating system.

System condition matters

If radiators are sludged up or circulation is poor, even an excellent new boiler may not perform at its best. In some homes, a power flushing service can help the system run more effectively by clearing built-up debris.

Correct sizing is essential

An oversized or undersized boiler can lead to disappointing performance. This is why it is important to have your home assessed properly rather than guessing what will work. Household size, bathroom demand, insulation levels and existing pipework can all influence the best choice.

Installation quality makes a difference

Even a leading boiler brand needs to be fitted correctly to deliver reliable results. Working with an experienced Heating Engineer Essex homeowners can trust helps ensure safe installation, proper commissioning and the right setup for your home.

High-efficiency boilers and modern home comfort

Today, many Essex homeowners are thinking beyond basic heating. They want comfort all year round, not just warmth in winter. A well-planned heating upgrade can sit alongside other improvements such as smart heating controls, underfloor heating or even air conditioning for year-round comfort, which is becoming increasingly popular during warmer spells in Chelmsford.

If your home also has an unvented cylinder, updated controls or a more complex layout, it is especially important to choose a knowledgeable installer who can look at the full system rather than only the boiler in isolation.

Is a high-efficiency boiler right for every home?

Not every property needs the same solution. A smaller flat may have different requirements from a larger family house with multiple bathrooms. Some homes may suit a combi boiler installation in Chelmsford, while others may benefit from a system designed around higher hot water demand.

That is why personalised advice matters. At Assured Heating Essex, the focus is on recommending what is suitable, safe and practical for your home, rather than pushing a one size fits all answer.

If you are exploring replacement options, it is also worth reading about what is involved in installing a new boiler so you know what to expect from the process.

The bottom line

For many homeowners and landlords, a high-efficiency boiler is worth considering because it can bring better reliability, improved comfort and more effective heating performance. The key is making sure the boiler is correctly matched to your property and installed by accredited professionals.

If you are thinking about boiler replacement in Chelmsford or need advice from a trusted local team, Assured Heating Essex can help. Whether you need guidance on a new boiler, boiler servicing in Chelmsford, or support with wider heating improvements, get in touch to arrange expert advice tailored to your home.

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Boiler Leaks: Fixable Fault or Time for Replacement?

A leaking boiler can be worrying for any homeowner. Even a small drip can raise concerns about safety, reliability and whether a bigger breakdown is around the corner. If you have noticed water around your boiler in Chelmsford or elsewhere in Essex, the most important thing is not to ignore it.

In many cases, a boiler leak can be repaired. In others, replacement may be the more sensible long-term option, especially if the boiler is older or the fault is part of a wider pattern of wear. At Assured Heating Essex, we help homeowners understand what is happening and what the safest next step looks like.

What causes a boiler to leak?

Boiler leaks can happen for several reasons, and not all of them mean the appliance has reached the end of its life. Water may come from the boiler itself, from connected pipework, or from a pressure-related issue elsewhere in the heating system.

Some common causes include:

• Worn internal seals or fittings
• Corrosion inside the boiler
• A faulty pressure relief valve
• Loose pipe connections
• Problems with the heat exchanger
• Excessive system pressure
• Leaks from nearby valves or joints

During summer in Essex, many people use their heating less often, which can make small faults easier to miss. Then, when the system is used again for hot water or tested ahead of autumn, signs of leakage become more obvious.

When a boiler leak may be repairable

A leak does not always mean you need to replace your boiler. If the issue is caught early, a qualified heating engineer in Chelmsford may be able to fix the problem safely and restore normal operation.

Signs a repair may be suitable

A repair may be the right solution if:

1. The leak is coming from an external pipe, valve or joint.
2. The boiler is otherwise working reliably.
3. The appliance is not especially old.
4. There have been no repeated breakdowns.
5. The leaking part can be replaced without major disruption.

For example, a worn valve or a minor sealing issue can often be resolved without replacing the whole appliance. If you have noticed boiler pressure loss in Chelmsford alongside a small leak, that may point to a fault that can be diagnosed and repaired before it gets worse.

If your boiler needs attention, it is always best to arrange a professional inspection rather than trying to investigate internal parts yourself. Gas and oil appliances should only be worked on by properly qualified engineers.

You can also learn more about our boiler repair service if your system is showing signs of leakage or pressure problems.

When replacement may be the better option

Sometimes a leak is a sign of deeper wear within the boiler. In these cases, repairing one part may not give you the reliability you need, especially if other parts are also ageing.

Signs replacement is worth considering

Replacement may be the better route if:

• The boiler is older and has needed several repairs
• Corrosion is affecting key internal components
• The heat exchanger is leaking
• Parts are becoming difficult to source
• You are dealing with recurring hot water or heating problems
• The boiler is no longer performing efficiently

For homeowners facing hot water problems in Essex, a leaking boiler combined with unreliable performance can be a strong sign that the system is no longer giving dependable service. In these situations, replacing your boiler in Essex can offer better peace of mind ahead of the colder months.

If replacement is needed, choosing an accredited installer matters. Assured Heating Essex works with trusted products, including Worcester Bosch systems, and can advise on suitable options for your home. You can read more about new gas boilers and what to expect if a replacement becomes necessary.

What should you do if your boiler is leaking?

If you spot a leak, stay calm and take sensible steps to protect your home while waiting for professional advice.

Here are a few practical actions:

• Turn off the heating system if advised by your engineer or if the leak is clearly worsening
• Avoid touching internal boiler components
• Place a container or towel down to catch water if safe to do so
• Check whether the leak is coming from the boiler or nearby pipework
• Arrange an inspection with a qualified gas engineer in Chelmsford or your local Essex area

If you are unsure whether the leak is affecting safety, seeking prompt help is the best option. A proper diagnosis can identify whether it is a straightforward repair, a pressure issue, or a sign that the boiler is nearing the end of its useful life.

Why summer is a good time to act

June is often a practical time to deal with heating issues. Because your heating demand is usually lower in summer, there is less disruption if your boiler needs repair work or replacement. It also means you can get ahead of autumn before colder weather increases demand for boiler servicing and boiler installation near you.

This is also a good time to think about wider home comfort. If you are improving your property for year-round performance, you may also want to explore air conditioning for Essex homes, especially as warmer spells become more common.

The value of an expert assessment

No two boiler leaks are exactly the same. One home may have a simple issue with a connection, while another may have internal corrosion that makes replacement the safer and more cost-effective long-term route. The key is getting clear, honest advice from an experienced heating engineer in Chelmsford who can assess the whole system properly.

At Assured Heating Essex, we provide trusted support for homeowners across Chelmsford and the wider Essex area, from boiler servicing and repairs to full heating upgrades. If your boiler is leaking and you are not sure whether it can be fixed, contact Assured Heating Essex for professional guidance and a safe, reliable next step.

The post Boiler Leaks: Fixable Fault or Time for Replacement? appeared first on Assured Heating Essex.

How To Choose Between Boiler Types

Choosing a new boiler can feel overwhelming.

A quick search online will tell you that combination boilers are the best, system boilers are ideal for larger homes, and regular boilers are suitable for older properties. While there is some truth in that, the reality is far more complicated.

After working in the heating industry since 2001 and personally carrying out boiler surveys across Essex, I've learned that there is no "best" boiler type. There is only the best boiler for your home.

At Assured Heating Essex, we install around 250 new boilers every year. One thing I've noticed is that the right boiler choice isn't determined by marketing brochures or internet articles. It's determined by a proper survey and understanding how the household actually uses hot water and heating.

The Biggest Mistake Homeowners Make

Many homeowners start by asking:

"Which boiler is best?"

In my opinion, that's the wrong question.

The better question is:

"Which boiler is best for my home, my family, and my future plans?"

Every property is different. A boiler that works perfectly in one house may be completely unsuitable in another.

That's why we spend time understanding:

• The number of occupants.
• The number of bathrooms and showers.
• Existing pipework.
• Water flow rates.
• Future extension plans.
• Budget requirements.
• Reliability expectations.

Only after gathering that information can a proper recommendation be made.

Understanding The Different Boiler Types

Combination Boilers

Combination boilers, often called combi boilers, provide heating and hot water directly from the boiler without the need for a separate hot water cylinder or cold water storage tank.

They are extremely popular because they:

• Save space.
• Provide hot water on demand.
• Remove the need for loft tanks.
• Simplify the heating system.
• Typically have fewer external components.

Modern combi boilers have improved dramatically over the years.

Many of the negative opinions people still have about combi boilers are based on experiences from older models installed decades ago.

When properly sized and installed, a modern combi boiler can be an excellent choice.

System Boilers

System boilers work alongside a hot water cylinder but do not require a cold water storage tank in the loft.

They are often suitable for larger homes where multiple bathrooms may be used simultaneously.

A system boiler can store larger quantities of hot water, which can be beneficial for households with higher demand.

Regular Boilers

Regular boilers, sometimes known as conventional or heat-only boilers, typically work with both a hot water cylinder and a cold water storage tank.

Many older properties still operate with this type of system.

While there are situations where they remain the correct choice, many homeowners are now choosing to move away from loft tanks where practical.

Why Water Flow Rate Is So Important

In my opinion, water flow rate is the single most important factor when considering a combi boiler.

Unfortunately, this is something many surveys fail to properly assess.

At Assured Heating Essex, we don't simply turn on a kitchen tap and make a guess.

How We Test Water Flow

We test the mains water flow using a flow cup connected to an outside tap.

There is a good reason for this.

Kitchen taps are often connected using flexible tap connectors which can restrict flow and provide misleading results.

An outside tap is normally connected directly to 15mm copper pipework, giving us a far more accurate indication of the property's actual mains water performance.

This gives us a true reading.

We Also Test The Shower

We then carry out a flow test on the shower.

What we're looking for is whether the shower flow is lower than the available mains water flow.

If it is, we know that a combi boiler can often provide equal or even improved shower performance compared to the existing system.

This is one of the most important parts of the survey process and can dramatically influence which boiler type is recommended.

When A Combi Boiler May Not Be The Best Choice

Although I am a huge fan of modern combi boilers, they are not suitable for every property.

For example, if a household regularly uses multiple showers at the same time, a combi may not be the best solution.

As a general rule, three showers running simultaneously on a combi boiler is usually a no-go.

The available mains water supply is shared between outlets, so demand must be carefully considered during the survey.

This is exactly why a proper assessment is so important.

Pipework Matters More Than Most People Realise

One thing that is often overlooked when converting to a combi boiler is the condition and accessibility of the heating pipework.

When converting from an older open-vented system to a combi boiler, the heating system becomes pressurised.

If existing pipework runs underneath floors and is inaccessible, any weak joints that have existed unnoticed for years may become apparent once pressure is introduced.

That doesn't automatically mean a combi conversion cannot be completed, but it is certainly something that should be assessed before making a recommendation.

The Problem With "Like For Like" Replacements

Many homeowners assume the safest option is simply replacing their existing boiler with the same type.

Sometimes that is the correct decision.

Often it isn't.

Just because a house has a conventional boiler today doesn't mean it still needs one.

Family circumstances change.

Extensions are built.

Bathrooms are added.

Water supplies improve.

The easiest installation is not always the best installation.

I regularly visit properties where previous quotations have recommended the simplest job for the installer rather than the best long-term solution for the customer.

The survey stage is where these decisions should be made properly.

Common Boiler Myths

Bigger Boilers Are Better

Not necessarily.

A boiler should be sized correctly for the property's heating and hot water requirements.

Oversizing can reduce efficiency and increase costs unnecessarily.

However, there are situations where installing a larger boiler today makes sense.

For example, if a homeowner plans to build an extension in the future, a larger output boiler can often be installed and range-rated down through the boiler settings.

When the extension is completed, the boiler output can then be increased accordingly.

Combi Boilers Can't Cope With Modern Homes

This may have been true many years ago.

Modern combi boilers are significantly more capable than earlier generations.

When correctly sized and matched to the available water supply, they can perform exceptionally well.

Cheap Boilers Offer The Same Value

In my opinion, you get what you pay for.

There are now boilers available through DIY stores, but I would personally avoid them.

The boiler is one of the most important appliances in your home and should be viewed as a long-term investment.

Which Boiler Brands Do We Recommend?

At Assured Heating Essex, the vast majority of our installations are Worcester Bosch boilers.

In our opinion, Worcester Bosch currently offers the best combination of reliability, warranty support and aftercare.

Vaillant would also rank highly.

One advantage of our long-standing relationship with Worcester Bosch is that if a Worcester Bosch boiler we have installed develops a fault under warranty, we can often attend and resolve the issue directly.

That means a quicker solution for the homeowner.

Some Worcester Bosch boilers are available with guarantees of up to 12 years.

Why Modern Boilers Are Better Than Ever

Modern boilers have come a long way.

Today's boilers are:

• A-rated for energy efficiency.
• Highly reliable when maintained correctly.
• Capable of modulating output to match demand.
• Designed to improve overall system efficiency.
• Able to contribute positively towards EPC ratings.

Modern boilers don't simply run at full power all the time.

They can intelligently adjust their output based on the heating demand within the property, helping improve efficiency and reduce energy consumption.

Choose The Installer Before You Choose The Boiler

If there is one piece of advice I would give homeowners, it is this:

Choose the installer before you choose the boiler.

The quality of the survey, design and installation will have a greater impact on your long-term satisfaction than the name printed on the front of the appliance.

A good installer will:

• Listen to your needs.
• Assess your property properly.
• Test your water supply.
• Consider future plans.
• Recommend the correct boiler type.
• Size the boiler accurately.

A poor survey can result in the wrong boiler regardless of the brand selected.

Final Thoughts

There is no universal "best" boiler type.

The right boiler depends on your property's water flow rate, heating requirements, future plans and how your family uses hot water on a daily basis.

Don't choose based on price alone.

Don't assume like-for-like replacement is always correct.

Most importantly, always have a proper survey completed before making a decision.

The right installer will help you choose the right boiler. The wrong installer may simply recommend the easiest one to fit.

After all, there isn't a best boiler for everyone.

There is only the best boiler for your home.

The post How To Choose Between Boiler Types appeared first on Assured Heating Essex.

How Long Does a Boiler Installation Take in Chelmsford?

If you are planning to replace your boiler in Chelmsford or elsewhere in Essex, one of the first questions you are likely to ask is how long the installation will take. It is a sensible question, especially in June when many homeowners want to get work completed before autumn arrives and heating demand picks up again.

The honest answer is that installation times can vary depending on your home, your current system, and the type of boiler being fitted. In many cases, a straightforward replacement can be completed within a day. More complex jobs can take longer, particularly if pipework, controls, cylinders, or radiators also need attention.

At Assured Heating Essex, we always recommend having your boiler assessed by a qualified professional so you know exactly what is involved before work begins.

What affects how long a boiler installation takes?

A new boiler installation is not just about swapping one box for another. A safe, efficient and reliable result depends on careful planning, correct sizing, and proper commissioning.

Some of the main factors that affect timescales include:

• whether you are replacing a like-for-like boiler
• whether you are changing from a regular or system boiler to a combi boiler
• the location of the new boiler
• whether the flue needs altering
• the condition of the existing pipework
• whether a hot water cylinder is being removed or installed
• any heating controls upgrades, such as smart thermostats
• whether the system needs a power flush or other cleaning work

A simple combi boiler replacement in a similar position is usually quicker than a full heating system redesign.

Typical boiler installation times

While every property is different, the following guide gives a useful idea of what to expect.

Straight boiler replacement

If you are replacing an existing boiler with a similar model in roughly the same location, the work can often be completed in one day. This is usually the quickest option for homeowners who need a straightforward boiler replacement in Chelmsford.

Changing boiler type

If you are switching from a conventional or system setup to a combi boiler, the installation can take longer. This is because tanks or cylinders may need to be removed, pipework may need changing, and the hot water system may need reconfiguring. Jobs like this commonly take between one and three days.

Moving the boiler to a new location

Relocating a boiler can add time because new pipe runs, a new flue position, and other alterations may be required. If you are renovating a kitchen, utility room, or loft space, this is worth factoring in early.

Larger heating upgrades

If your installation includes extra work such as underfloor heating, radiator changes, or an unvented hot water cylinder, the overall timescale will usually increase. In these cases, your heating engineer in Chelmsford should explain the expected programme clearly before work starts.

Why summer is a good time to book

June is often an ideal time to arrange a boiler installation in Chelmsford. Your heating system is under less pressure in summer, which makes it easier to schedule work without the inconvenience of needing full-time heating.

There are other practical benefits too:

1. You can avoid the autumn rush.
2. There is more time to deal with any related heating improvements.
3. You can prepare your home before colder weather returns.
4. Engineers can identify any hot water or boiler pressure issues before they become bigger winter problems.

If you have also been considering air conditioning installation in Chelmsford for summer comfort, it can be useful to discuss both upgrades at the same time, especially during wider home improvements.

What happens on installation day?

Homeowners often feel more comfortable when they know what to expect. Although each job differs, the process usually includes:

• protecting the work area
• removing the old boiler safely
• making any necessary pipework or flue changes
• fitting the new boiler
• connecting and testing the system
• checking gas safety and system performance
• commissioning the appliance correctly
• explaining the controls to the homeowner

A professional Gas Safe engineer will also make sure the installation complies with current regulations. For oil systems, Oftec requirements are equally important.

For a fuller overview, you can read what is involved in installing a new boiler on our website.

Can anything delay a boiler installation?

Occasionally, yes. A few common issues can extend the work:

Existing system problems

If the system has sludge, poor water circulation, worn valves, or damaged pipework, these may need to be resolved for the installation to be completed properly.

Incorrect boiler sizing

Choosing the right appliance matters. A boiler that is too small or too large for the property can affect performance and efficiency. If you are unsure, our guide on what size boiler you need is a useful starting point.

Additional upgrade work

Sometimes homeowners decide to improve controls, replace radiators, or update hot water components once the job is under way. These improvements can be worthwhile, but they may affect the timeline.

How to prepare for a smooth installation

There are a few simple things you can do to help the job run efficiently:

• clear access around the boiler and key work areas
• let your engineer know about any past hot water problems in Essex homes, such as fluctuating temperatures or pressure loss
• mention any plans for future heating or cooling upgrades
• ask questions about aftercare, servicing and ongoing maintenance

Once your new boiler is installed, keeping it in good condition is just as important as the installation itself. Our article on boiler servicing in Essex explains why regular servicing helps protect safety, efficiency and reliability.

The right installation matters as much as the speed

It is natural to want your new boiler fitted as quickly as possible, but quality and safety should always come first. A rushed installation can lead to performance problems, poor efficiency, and future repairs. A properly installed boiler should be sized correctly, fitted safely, and set up to suit your household's heating and hot water needs.

If you are looking for a trusted heating engineer in Chelmsford or anywhere across Essex, Assured Heating Essex can help. Whether you need advice on replacing your boiler, resolving hot water issues, or planning a wider heating upgrade, get in touch with our team for straightforward, professional support.

The post How Long Does a Boiler Installation Take in Chelmsford? appeared first on Assured Heating Essex.

Do They Check Radiators On A Boiler Service?

The short answer is yes, they should.

In my opinion, checking the radiators should form part of every boiler service. Unfortunately, not every heating engineer or company includes this as standard.

At Assured Heating Essex, we have always checked radiators during a boiler service. It is a quick process that can identify problems before they become expensive breakdowns when you need your heating most.

Having worked in the heating industry since 2001 and with our team of 10 engineers carrying out around 2,000 boiler services every year, we've seen first-hand how often seemingly minor radiator issues can go unnoticed by homeowners.

In fact, I would estimate that around 1 in 10 properties we visit have radiator-related problems that the homeowner wasn't aware of before the service.

What Do We Check On The Radiators During A Boiler Service?

When we carry out a boiler service, we don't just focus on the boiler itself.

We ramp the boiler up to its maximum output and test the heating system harder than it would normally operate during day-to-day use. This allows us to properly assess how the entire system is performing.

As part of our service, we:

• Check that all radiators heat up correctly.
• Bleed radiators where necessary.
• Check and adjust the system pressure.
• Identify radiators that are not heating properly.
• Look for signs of circulation issues.
• Check for stuck radiator valves.
• Look for early warning signs of sludge or corrosion.

By testing the heating system thoroughly, we can often identify issues before they leave a customer without heating during the winter.

Why Checking Radiators Is So Important

Many homeowners assume that because their heating worked last winter, everything will work perfectly when they turn it back on this year.

Unfortunately, that isn't always the case.

Heating systems often sit unused for months during the summer. During this time, components can seize, valves can stick, and other issues can develop without the homeowner noticing.

When winter arrives and the heating is finally needed, that's when these problems become apparent.

By checking radiators during an annual boiler service, many of these issues can be identified and resolved before they cause inconvenience.

Problems We Commonly Find During A Boiler Service

Over the years, we've found a wide variety of radiator issues during routine servicing.

Stuck Thermostatic Radiator Valves

Most modern radiators have thermostatic radiator valves (TRVs).

These valves control the flow of hot water through the radiator and help regulate room temperatures.

When a heating system has been inactive for a long period, these valves can sometimes stick in position.

We've found valves that are:

• Stuck fully open.
• Stuck partially open.
• Stuck completely closed.

If a valve is stuck closed, the radiator may not heat up at all.

Many homeowners don't discover this until the first cold day of the year. A boiler service gives us the opportunity to identify and rectify the problem beforehand.

Air Trapped In Radiators

A radiator that is hot at the bottom but cold at the top often indicates trapped air.

This is one of the most common issues we encounter.

In many cases, the solution is simple. We bleed the radiator, release the trapped air and top up the system pressure if necessary.

However, recurring air in the system can sometimes indicate a larger issue.

For example, internal corrosion within the heating system can create gases which then become trapped at the highest points of the radiators.

A routine service allows us to spot these warning signs early.

Sludge Build-Up

If a radiator is hot at the top but cold at the bottom, this can often indicate sludge accumulation.

Over time, corrosion products and debris can settle in the bottom of radiators and pipework, restricting water flow.

The result can be:

• Poor radiator performance.
• Cold spots.
• Reduced heating efficiency.
• Increased strain on the boiler and pump.

In some cases, this may indicate that the system would benefit from a powerflush to remove accumulated sludge.

Can A Boiler Be Serviced Without Checking The Radiators?

Technically, yes.

A heating engineer can service the boiler itself without checking the radiators.

However, I don't believe that represents a complete heating system service.

The boiler is only one part of the heating system. If radiators aren't heating correctly, valves are seized, air is trapped, or sludge is restricting circulation, the customer is still likely to experience heating problems even if the boiler itself is operating perfectly.

That's why I believe radiator checks should be included as standard and not sold as an additional extra.

Homeowners should always ask what is included in a boiler service before booking.

We've Found Many Problems Homeowners Didn't Know About

One of the most common things we hear from customers is:

"The radiator was working fine last year."

And they're usually right.

The radiator probably was working perfectly at the end of the previous heating season.

However, after several months of inactivity, a surprising amount can happen.

We've attended countless properties where homeowners were completely unaware that:

• A radiator valve had seized.
• Air had built up in the system.
• Sludge had accumulated.
• A radiator was no longer heating properly.
• System pressure had dropped.

Because we test the entire heating system during a service, these issues are often identified long before the customer experiences a breakdown.

When Is The Best Time To Have A Boiler Service?

Most homeowners wait until autumn when they begin using their heating again.

In my opinion, summer is actually the best time to arrange a boiler service.

There are several reasons for this.

Firstly, heating components that have been sitting unused are more likely to develop issues that can be identified and resolved before winter arrives.

Secondly, heating engineers are generally less busy during the warmer months.

Once temperatures drop, engineers are often dealing with emergency breakdowns and heating failures. This can make it harder to arrange routine maintenance appointments.

Booking your service during the summer helps ensure your heating system is ready before the cold weather arrives.

My Advice To Homeowners

If you're booking a boiler service, don't assume the engineer will automatically check the radiators.

Ask the question.

A proper boiler service should include checking that the heating system is operating correctly and that all radiators are heating as they should.

The small amount of time spent checking radiators can identify problems early, prevent unnecessary call-outs and help avoid heating failures when you need your system most.

Most importantly, don't skip your annual boiler service simply because everything appears to be working fine today.

Many of the problems we find during servicing haven't yet caused a breakdown.

That's exactly why annual maintenance is so important.

Final Thoughts

Yes, radiators should be checked during a boiler service.

At Assured Heating Essex, we've always included radiator checks as part of our standard service because we believe it provides better value for customers and helps identify issues before they become costly repairs.

After more than two decades in the industry and thousands of boiler services every year, we've seen how often seemingly minor radiator problems can go unnoticed.

An annual boiler service is about far more than checking the boiler alone. It's about making sure your entire heating system is ready to keep your home warm, efficient and reliable throughout the winter months.

The post Do They Check Radiators On A Boiler Service? appeared first on Assured Heating Essex.