Happy Heat  Reviews 

51
•
TrustScore 5 out of 5

4.8

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

See what reviewers are saying

Rated 5 out of 5 stars

If I could give 6 stars I would. Amazing service, Lauren had attended my house before for a quick job but this time when my water went cold at 8am, she was round within 2 hours. She gave me all the op... See more

Company replied

Rated 5 out of 5 stars

Lauren visited our home when our boiler completely broke and we needed a new boiler. She talked me through everything we needed and explained everything about the products. Jamie was our boiler in... See more

Company replied

Rated 5 out of 5 stars

Martin came out this week end to look at out church boiler, on his way home to see his children. He goes beyond being a good engineer he is polite, courteous and above all he cares. He is fantastic an... See more

Company replied

Rated 5 out of 5 stars

I cannot praise Martin and his team highly enough! Four days before Christmas, my boiler broke, I was distraught and Martin came to my rescue. Not only did he and his team manage to fit a new boiler b... See more

Company replied

Company details

  1. Heating Contractor
  2. also in
  3. Boiler and Heating Service
  4. Gas Engineer
  5. Gas Installation Service
  6. Industrial Engineer
  7. Plumber

Written by the company

The Heating & Cooling Experts Your local experts for heating, air conditioning and gas services for your home or business. Happy Heat is a family-run heating and cooling company providing professional services across Hertfordshire, Middlesex and London. With over a century of combined industry experience across our team, we have the knowledge and expertise to look after everything from domestic heating and air conditioning to complex commercial heating and cooling systems. We’re Gas Safe registered, F-Gas registered and fully insured, giving our customers complete confidence that their heating and cooling systems are in experienced, qualified hands. Whether it’s a new boiler, air conditioning installation, servicing, repairs or commercial heating and cooling, our focus is always the same: quality workmanship, honest advice and exceptional customer service. As a family-run business, we’ve built Happy Heat around trust, reliability and attention to detail. We combine the personal service of a local company with the experience, capability and professionalism to deliver projects of all sizes. Heating. Cooling. Happy Heat.


Contact info

4.8

Excellent

TrustScore 5 out of 5

51 reviews

5-star
4-star
3-star
2-star
1-star

No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.8

All reviews

(51)

18 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Massive thank you to happy heat

Massive thank you to happy heat. Awesome service, kind of last minute but they were happy to help for a new boiler fitting heading into winter as it wouldn’t have been good with our old one packing in. Pukka job.

October 17, 2025
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you, John, for the great review! 😊
We’re really pleased we could step in and get your new boiler sorted, especially at short notice.

With winter on the way, it’s important to have everything running reliably, so we’re glad we could help when you needed it.

Thanks again for your kind words—pukka job all round 🔥
We’re always here if you need us.

Rated 5 out of 5 stars

reliable efficient and nice

efficient and nice
I’m using their services for many years recently installed a new big boiler.
Always available professional and reliable.

August 3, 2025
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you 🙏

Rated 5 out of 5 stars

5 stars plus

Have used many boiler / gas tradesmen in my life, and so happy to have finally used ones who I can so highly recommend. Had quotes for work done both in my office and at home, and the difference was astonishing. They are here to give you the best job, friendly service, and so professional, all for fair and extremely competitive prices. 5 stars plus for Happy Heat

June 13, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you

Rated 5 out of 5 stars

Martin is very helpful and…

Martin is very helpful and professional.
He work very fast to solve the problem

March 16, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Hello Kit, Thank you for reviewing the service you received from Happy Heat 😊🙌

Rated 5 out of 5 stars

Great service - thank you

Martin and his team were very professional and reliable in the work they have done for us so far. We are glad to have picked them as our new service provider.
Martin is not the type of engineer that will do the bare minimum but more the kind of person that will go the extra mile to help you. Very knowledgeable and a friendly, considerate attitude.

February 6, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you

Rated 5 out of 5 stars

Thank you

Great response to an issue which was dealt with quickly and efficiently by Martin.
We are so grateful to have found a company with the personal touch who we are able to call and count on.
Thank you Martin

February 3, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you

Rated 5 out of 5 stars

The best heating company ever!

When my boiler broke down in my hair salon I called Happy Heat as they have been recommended to us by a few of our clients. I was not disappointed! They fixed my boiler same day and best of all, I didn’t even have to cancel any appointments! Absolutely amazing service, far superior to any other heating company we have ever used!

January 12, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you

Rated 5 out of 5 stars

Would definitely recommend

Martin and his team were amazing.
Explained everything clearly and provided an excellent professional service; nothing was too much trouble.
Would recommend without hesitation.

November 17, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you

Rated 5 out of 5 stars

Excellent service

Excellent service, quick, Very pleasant, considerate, professional, experienced, friendly experts doing their job promptly and at high quality - can only be highly recommended

January 22, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you for sharing your experience with Happy Heat Mr Hesse 😊🙌

Rated 5 out of 5 stars

Great !

Martin came out this week end to look at out church boiler, on his way home to see his children. He goes beyond being a good engineer he is polite, courteous and above all he cares. He is fantastic and sorted out our issue quickly and professionally. We are really happy to have taken Happy Heat as out maintenance company.

January 14, 2023
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you for sharing your Happy Heat experience Pastor Susan 😊🙏

Rated 5 out of 5 stars

Martin came to me twice over Xmas out…

Martin came to me twice over Xmas out of hours due to my heating failing.
His professional Manor was exceptional. I can’t thank you enough for your time as I had visitors staying. I would highly recommend this company. It’s all in the name Happy Heat.😄

December 27, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you Sara, we are delighted that you are happy with the service you received 😊

Rated 5 out of 5 stars

Happy Heat came to my rescue!

I cannot praise Martin and his team highly enough! Four days before Christmas, my boiler broke, I was distraught and Martin came to my rescue. Not only did he and his team manage to fit a new boiler but his patience, his good nature and calm manner gave me a real sense that I could trust him 100%. I would absolutely recommend Happy Heat as a professional, friendly and reliable company.

December 23, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you so much for your glowing review Candy, it was a pleasure working for you and if you ever need us in the future, we will be there for you again 😊🙌

Rated 5 out of 5 stars

Excellent service

Excellent service, would definitely recommend and local.👏

December 30, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you Gavin and Natasha for your glowing review, we are happy we managed to resolve your heating issues quickly and efficiently 😊🙌

Rated 5 out of 5 stars

We had Happy heat come out to our…

We had Happy heat come out to our property we were so impressed with their workmanship we put them on a 6-month trial on all our properties domestic & commercial which they passed with flying colours they are now the main contractor for over 60 of our properties

January 4, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you Rebecca, we are delighted you are happy with the service you have received!

Rated 5 out of 5 stars

Replaced kitchen sink tap

Replaced kitchen sink tap. Friendly service and neat work. Very pleased.

September 2, 2022
Unprompted review
Happy Heat  logo

Reply from Happy Heat

Thank you! Glad we could help you again and thank you for your returning custom! 😊

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look