Your local, fully qualified heating engineers providing a trusted service - helping you keep your home warm, safe and comfortable.

Founder & Owner:
Lee Nichols

Founded in 2009 by Lee Nichols, Assured Heating Essex has gained vast experience within the domestic and commercial heating sector. Day to day, Lee runs the office and attends all of the site surveys. With his determination and drive the company has gone from strength to strength, furthermore, is consistently growing. Lee is highly motivated, with exceptional multi-tasking and organisational skills…he is also the nicest guy you will ever meet!

At Assured Heating Essex we specialise in gas and oil heating systems that are energy-efficient, reliable and are value for money.

We are fully qualified to install and maintain any boiler type using quality heating supplies and we currently perform over 250 boilers installations per year in the local area.

We are accredited with Worcester Bosch, Viessmann boilers, Vaillant boilers, Glow-worm boilers and ATAG boilers. We are Gas Safe registered and are Oftec oil registered installers.

We have engineers that specialise in boiler installation, we also have engineers that specialise in system repairs. We believe different engineers have different strengths, an installation engineer is not necessarily going to know the common faults of a 15 year old boiler! We have a team of engineers that are experts in their own field.

We are proud of our reputation for meeting the needs of our customers while staying true to our principles of delivering the highest standards of customer service, based upon the core tenets of trustworthiness, professionalism, reliability and value for money. We have an office based in Rettendon, which is staffed Monday to Friday 9am until 5pm so feel free to pop down to see us!

Our customer commitment.

It’s not just about what we do; it’s about how we do it. According to Harvard Business School 80% of businesses claim to provide good customer service in contrast to only 8% of customers who feel the same way! We are committed to delivering the highest standard of professionalism and customer service, which is why we receive so many enquiries that start “you were recommended to us by my mother, father, sibling, colleague or friend”.

We value the customer experience and actively welcome feedback to help us improve. Our company is listed on several trusted review platforms, including Google Reviews, Trustpilot, and Checkatrade. We gather feedback from every job we complete and appreciate constructive input that helps us improve and better support our clients.

We are proud of our unrivalled reputation for meeting the heating system needs of our customers while staying true to our principles of delivering the highest standards of customer service, based upon the core tenets of trustworthiness, professionalism, reliability and value for money.

Pride in workmanship.

At the heart of everything we do is a deep commitment to quality and the attention to detail. We take pride in our work – no matter the size of the project. From the first consultation to the final finishing touches, every detail is handled with care, precision, and professionalism.

Our team is passionate about delivering results that exceed expectations.  We don’t consider a job complete until our clients are fully satisfied. This dedication to excellence is what sets us apart and keeps our clients coming back, time and time again.

Investing in Our People

At the heart of our business is a commitment to people, both our customers and our team. We believe that by investing in our staff, we deliver a better, more reliable service to you.

We’re proud to have a dedicated team of 7 to 10 Engineers supported by 2 experienced office-based staff. From fieldwork to customer support, every member of our team plays a vital role in delivering smooth, efficient service.

Ongoing Training & Development
We stay ahead of the curve by ensuring our staff receive continuous training on the latest industry standards, tools, and technologies. This means our team is always equipped with the knowledge and skills needed to deliver safe, accurate, and efficient work.

Modern Tools & Technology
We use the latest booking and scheduling systems to provide a seamless monthly booking process – saving you time and keeping everything running smoothly behind the scenes.

Our investment in people and technology is an investment in quality, giving you peace of mind, every step of the way.

 

Reviews from Some of Our Happy Customers

Posted on Google Google
Jan Talikowski profile picture
Jan Talikowski
16 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Engineer from Assured Heating arrived when stated and showed me his ID when asked. He serviced the boiler quietly and efficiently and answered questions I had. Very satisfied with the Service.
Posted on Google Google
Robert Dudley profile picture
Robert Dudley
15 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Mitch like all your engineers we have had to service our boiler over the past 11 years was friendly , informative , efficient and tidy first class service as usual.
Posted on Google Google
Simon Berry profile picture
Simon Berry
14 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service and very professional.
Posted on Google Google
tiny soaked profile picture
tiny soaked
14 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Boiler service carried out to the usual high standard. On time and clean & tidy. Thoroughly recommend Assured for all plumbing & heating needs!
Posted on Google Google
Lauren Brown profile picture
Lauren Brown
14 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Friendly, efficient and turned up on time. Very reasonably priced
Posted on Google Google
David Fox profile picture
David Fox
13 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Fast efficient service Dwayne was our engineer who was polite courteous & professional highly recommended
Posted on Google Google
Kian Roberts profile picture
Kian Roberts
13 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great all round - price, punctual, good job and friendly engineer.
Posted on Google Google
Kirsty profile picture
Kirsty
12 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very good service. Friendly engineers, very efficient and informative service. Great communication from back office team. Quick to book. Good prices. Highly recommend.
Posted on Google Google
janet baxendale profile picture
janet baxendale
9 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service as always, best company around, would’t use anyone else 😊
Posted on Google Google
Lavinia Manning profile picture
Lavinia Manning
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The engineers are always on time and let us know when they will arrive. They are always polite and do the job quickly. I would trust if they found anything that needed repair. Now it is possible to pay by card which makes payment easy.
Posted on Google Google
Lisa Murphy profile picture
Lisa Murphy
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have used Assured heating for a few years now and when we moved address we called them to check the new boiler. Mitch arrived on time and unfortunately for us the boiler was not in a safe condition at all and he had to turn off the boiler. He was great and explained all the issues the boiler had and reassured us that the gas was now safe until we have another installed. We did not receive a hard sell and received a quote when we requested one. I have all the confidence that the new boiler will be installed professionally. Brian has booked this in as soon as possible and we appreciate all your help. Thank you for your advice and support.
Posted on Google Google
Julie Prendergast profile picture
Julie Prendergast
6 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had my boiler serviced today by Dwayne from Assured Heating Essex. Always a pleasure to see him, so friendly and efficient

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