The 20 Best Energy efficient boilers in London

“I had a issue with my boiler and Jiri came to my house and fixed it quick and it did not cost me an arm and a leg. I highly recommend his services!!!”

“Alp came to our house and attended to our boiler issue very quickly. Alp is a very trustworthy guy, excellent value for money. I picked him because of the good reviews and I can highly recommended.”

“I contacted Heat In London for a last-minute job, and Louis couldn’t have been more accommodating. The team was professional, friendly, and their craftsmanship was top-notch. Everything was handled smoothly and on time. Great service, competitive pricing, and a pleasure to deal with. Highly recommend—thank you so much!”

“3 years old boiler was off for 6 months and it would not turn on anymore. At the first visit the engineer after a few tests understood the pump was jammed. We agreed I was going to buy a new one and he was going to fit it when I got the new piece. A few days later the engineer was back at my place to fit it and the boiler has been working properly since. The engineer was flexible with the hours (he came at 8pm the first time and left at 9:30pm), he was honest and most of all the price was fair. I would definitely reccomend him.”

“Fantastic experience from start to finish. We had a new boiler installed. The engineer who installed our boiler was fabulous. Super efficient, very professional, cleaned up after himself, explained through the process how everything would work. There was a slight hitch that evening after the boiler had been installed, but he called me late that night to say he would be back first thing in the morning to fix the issue, which he did. Would highly recommend!”

“Was a great customer service. They were very responsive and quickly came out to service our work. The repairs were done in a few days and they left our house looking better than when they found it. James is an excellent technician. Very knowledgeable, friendly, and a quick worker. I would definitely recommend Beni to anyone needing plumbing services.”

“Since 2015, Ibrahim has been servicing and repairing all the boiler and hot water systems in our rental properties. Since we found him through Which Trusted Trader, he's the only heating engineer we've used. He's extremely knowlegable, reliable and polite !”

“I have worked with Alpay over the last year and he’s great. He installed a Viessman 111-w and made sure it was properly set up for OpenTherm with a Tado smart heating system, while making sure it works with our multi-zone underfloor heating (no one else I spoke to knew how to get this done right). Thanks, Alpay, really appreciate all the help getting things set up.”

“Ashley from Ickenham Heating was not able to come out but sent another colleague within the day I contacted him. I had a wonderful experience and full diagnostic from his colleague Chris who went through everything fully and explained all the workings of the heating system in a a very thorough way and made non pressurised recommendations. Charged a very small call out fee (unlike most) so cant thank them enough for their stress free response. Many thanks Ashley for sending Chris.”

“Ryan and his co-worker arrived promptly and worked hard throughout the day installing a new boiler after flushing the whole system through thoroughly and replacing ceased parts, which I was shown, in the process I would definitely recommend him and his Company as I found him to be very reliable, efficient and also self sufficient with respect he nor the gentleman working with him didn't ask for food or drinks as they had arrived fully catered The boiler which was fitted is excellent and our heating and hot water works like a dream This is a Family Business and Ryan was taught by his Father many things, his Father we have always used for our central heating needs for at least 30 years without any problems, and totally trust what he says, he has never let us down in all that time and I just know Ryan his Son will be the same, conscientious, very reliable working to a very high standard Many Thanks Indeed!”

“Had Chris of Spence to service my boiler. He was punctual, polite and very helpful.Chris kindly emptied the cupboard where the boiler was and put everything back neat and tidy afterwards. First time of using Spence and I would certainly use them again. No complaints whatsoever.”

“Great experience. Meg was quick to respond to my messages and emails. Excellent customer service. Boiler service and gas safety check booked in quickly with same day repairs to reduce disruption. Would highly recommend.”

“Alex helped us understand whether an air source heat pump versus a boiler would be right for our home. We appreciated his deep knowledge of both, and his attention to detail and consideration for our home when installing a new boiler.”

“One of the best plumbing services comes from Strathleven Electric & Plumbing.. They simply repair every bit of the problem without a sign of difficulty.. It was fantastic.. Two thumbs up for a job well done!”

“Great service from Lee and the team at Laza, explained our options to us, made recommendations and were patient when we changed our mind on some items!”

“My experience with Kwik Air Solutions has been excellent. Delivery was fast, parcel arrived in perfect condition and was delivered with care as I expected. I am very pleased with your services. Great to do business with. All done as promised. I highly recommend this company and will be doing more business in the future.”

“Vinny fixed my boiler and installed a Nest learning thermostat for me. He is efficient, confident and clearly has vast knowledge of and experience in boilers, central heating systems and smart thermostats. Very pleased with his services and highly recommended.”

“This was the first time I used ara gas and heating, Abdul was very polite. He was quick and had a good knowledge of what he needed to do to solve my issues. He explained everything he was going to do before doing it. Will Definitely use him again and pass his company on to friends and family. Thanks Abdul for a great job.”

“Micheal arrived each time when he said he would, one to quote and once to install. Installed our new boiler with no issues, left the area clean and tidy. Showed me how to work the new boiler. Great communication. Would recommend Michael to others. Thank you.”

“Great, expert people who are knowledgeable and friendly. I have had them fix some radiators and perform my boiler service and they are always very reliable and do a thorough job. They take the time to clearly explain what they've done and to answer any questions. Most recently, when I had a boiler issue, Duncan came out and fixed the problem, and they proactively provided a quote to replace the troublesome part so it can be quickly replaced if my boiler were to fail over winter. Will always use these guys for my central heating.”

“Quick response to an emergency help request within an hour on a Saturday afternoon. Booking in was very helpful with idea of time frame and costs given which was accurate. Gavin very thorough and helpful in locating the initial leak and then another one we didn't know we had. Repairs carried out with spare valves he had in his van. Good advice given for further work required and job tidied up before he left. Highly recommended.”

“I had a fantastic experience with Dan. He is professional, and solved the problem quickly. Highly recommend for anyone needing reliable plumbing services!”

“I was disappointed last minute by British gas and two others. I went online to search for plumber, read few of their review and decided to give them a ring, prompt response and they help me install my new gas. They turned up exactly the time they promised. I was so happy because I was tired of buying takeaway. Thank you so much Green planet plumbing.”

“We needed a new shower fitment. Cloverleaf responded and sorted the problem very quickly. Efficient service. Dylan was friendly, knowledgeable and explained everything we needed to know.We always use Cloverleaf for plumbing and heating.”

“I think this is a large company and having used them only once I can't really comment on the company but if Stuart (the technician / plumber that attended) is anything to go by then this company is superb. Friendly professional and overall a great guy that sorted my plumbing problem quickly.”

“John fixed my boiler quickly and efficiently. Great service!”

“Quality plumbing services you can rely on, year after year.”

“Contacted for heater maintainance work. They did an excellent service on time. Highly qualified staff. Definitely recommended their service!”

“We’ve purchased many bathrooms here over the years, Sean is always happy to help! I would always recommend this shop.”