Gasworkslondon Reviews 

87
TrustScore 4.5 out of 5

4.6

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

We have used Dave and his team for ten years, working on two properties that we have owned. Anything and everything he has done for us has been excellent in quality, timing, pricing and tidiness. His... See more

Rated 5 out of 5 stars

Very happy with the service. Mason and Kier, the two engineers who came to install the new boiler, looked very young when they appeared at the door and because of this I was concerned at the beginning... See more

Rated 5 out of 5 stars

Saw some good reviews on Nextdoor.com so called Dave Halpin, who took time to go through my boiler problem and explain probable cause and quoted. Manvir arrive early next morning, solved the problem a... See more

Rated 2 out of 5 stars

Really surprised given the other comments here what poor service I’ve had from gasworks London. Took me ages to get them to commit to an appointment, then they were more than a hour late without ca... See more

Company details

  1. Gas Installation Service

Information provided by various external sources

Gasworks London is a small local firm based in Poets Corner, Acton and serves the western half of London. It was started by David Halpin in 2006, after 15 years experience in repairing and installing boilers with British Gas. We pride ourselves on offering a more personal touch compared to some larger faceless companies as I’m personally involved in most of the jobs. We specialise in Power Flushing, Unvented Megaflo cylinders, Repairing and Installing Boilers. We also undertake boiler servicing, gas certificates and plumbing.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

87 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

Replied to 100% of negative reviews

Typically replies within 48 hours

How this company uses Trustpilot

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

4.6

All reviews

(87)

8 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

5 star service

Delighted at the service provided by Gasworks. Found this company on the Worcester Bosch website and used for a full central heating install. The engineers worked exceptionally hard during the hottest days in June and did a very tidy job agreeing pipe runs with me. Would have no hesitation in using them again and recommending to all my friends/family.

July 13, 2026
Unprompted review
Advertisement
Rated 5 out of 5 stars

Very happy with the service

Very happy with the service. Mason and Kier, the two engineers who came to install the new boiler, looked very young when they appeared at the door and because of this I was concerned at the beginning they could have not been very experienced. But I was soon proven wrong in this first impression, Mason in particular came across at the end of the installation as being very experienced. Very happy with the new boiler and with the service provided by Gasworks. I would like to praise in particular Kamila and Helen who were lovely to deal with on the phone, making me feel I was in good hands. Thank you

May 11, 2026
Unprompted review
Rated 1 out of 5 stars

I called gas works London

I called gas works London, to sort out my boiler and why it was leaking and losing pressure, he managed to stop it from leaking, but when he went to sort out the radiator it never worked and he told me to get a new radiator anyway I called gas works London again to come fix the heater again he advised me to get a new radiator again it was leaking got another person out who fixed it in a few minutes and I was able to return the radiator I purchased. The engineers this company send out are useless and incompetent. A normal handyman fixed the problem in a few minutes. I only got these guys out because I thought they were professional they are cowboys. The boss tried to call me at 7am and asked me to take off my review which I did. Do not use these Crooks they will rip you off and don't provide the service like they should. I'm waiting for them to send me a small claims court summons .. DO NOT USE

February 5, 2026
Unprompted review
Gasworkslondon logo

Reply from Gasworkslondon

Dear Ikram,

We’re sorry to hear about your experience. We would like to clarify that our engineers attended twice at short notice to address your boiler and radiator issues. The initial visit was carried out as a diagnostic appointment in line with our confirmed call-out charges, and the follow-up visit was provided free of charge as a goodwill gesture.

During these visits, our engineers addressed the immediate issues, identified components that may require future replacement, and provided a detailed quotation. We always aim to provide professional and safe service, and we regret that our work did not meet your expectations.

Kind regards,
Gasworks London

Rated 5 out of 5 stars

Easy to deal with!

Came out on the same day to look at boiler pressure problem. Sorted quickly.
Professional and nice blokes!

February 11, 2026
Unprompted review
Advertisement
Rated 5 out of 5 stars

Faultless service and for a fair price

How unusual to find a company that gives a 5 star service for a competitive price. From start to finish David and team couldn’t do enough to ensure my client experience around my Aircon installation was second to none.
I’ve had some teething problems with the Aircon and again David and Heydan were on the case working late into the evening to resolve.

Zero hesitation in recommending Gasworks to anyone thinking of having Aircon installed.

October 10, 2025
Unprompted review
Rated 5 out of 5 stars

Amazing staff and engineers

Your engineer Michael visited on the morning of 27/9 for a Gas Safe check. He found the boiler unsafe after replacing some parts and advised more were needed, leaving us without heating or hot water (thankfully the weather was mild). I accepted the quote for the additional work.

Michael returned on the afternoon of 6/10, fitted the remaining parts, and completed the job. Unfortunately, his Flue Gas Analyser wasn’t working, so engineer Manveer who was extremely polite and friendly, came later that evening to finish the test and issue the Gas Safe certificate. Both engineers and Gasworks London staff were professional and helpful throughout.

October 6, 2025
Unprompted review
Rated 5 out of 5 stars

“Reliable, Professional, and Always There When Needed”

“Outstanding service once again! Mike came to the rescue at the very last minute and carried out a first-class installation of our new range cooker. His attention to detail was faultless — every connection was checked and double-checked, with full safety testing completed even though the cooker was brand new. Mike’s professionalism, courtesy, and expertise truly shone through.

A huge thank you also goes to Dave and the rest of the team — their reliability and dedication have never let me down. It’s rare to find a company that consistently delivers such high standards of service, but with this team, I know I’m always in safe hands.”

September 20, 2025
Unprompted review
Advertisement
Rated 5 out of 5 stars

Excellent service & professional Installation

I had a new boiler installation in July 24 , converting my old boiler to a combi boiler. The installation was done expertly and professionally by an efficient team. I can highly recommend James and Manveer.
This week, I had to call Gasworkslondon to sort out an unusual blockage in the pipe-work of a shower which Manveer solved skilfully. Excellent service !!

April 7, 2025
Unprompted review
Rated 5 out of 5 stars

great service

Engineer was great, super polite and sorted the problem quickly and efficiently.
I would highly recommend this company.
I wouldn’t use any one else.

March 14, 2025
Unprompted review
Rated 5 out of 5 stars

15 years of great service - thanks to Dave and the team

Dave has been looking after our boiler and heating for 15 years. We just moved and after sending Manveer (great!) out to assess the system we had inherited we decided to replace the boiler.
David spent a day with us doing the power flush of the rads - really efficient and delightful guy, and then the team came to replace the boiler, rewire the underfloor heating etc. We are now set up with a hive system and it’s all working really well.
Thanks Dave - you have a great team and we’ll see you in a year for servicing.

March 17, 2025
Unprompted review
Rated 5 out of 5 stars

Just had our Vaillant boiler serviced

Just had our Vaillant boiler serviced. Everything was done very efficiently, and Mason was excellent. Gasworks responded very promptly to my initial enquiry and booked an engineer visit for the next day. Very happy with the result, and how the work was done with care and expertise. Highly recommend.

March 6, 2025
Unprompted review
Advertisement
Rated 5 out of 5 stars

Boiler issue

I called Gasworks London because I had an issue with my boiler. I spoke to Dave and he sent over one of his engineers. Manveer was polite, professional and sorted out the problem quickly.
I can’t recommend there’s guys enough!
I will not hesitate to call Dave and the Gasworks London team again in the future.

February 18, 2025
Unprompted review
Rated 5 out of 5 stars

I recommend this company

I recommend this company. They replaced my old boiler and the guys worked quite efficiently and were very nice and professional.

January 29, 2025
Unprompted review
Rated 5 out of 5 stars

I was very pleased with the service…

I was very pleased with the service from Gasworkslondon. The engineer arrived on time, was polite and professional, and completed the work efficiently.
Great service from start to finish.
Thank you!

February 7, 2025
Unprompted review
Rated 5 out of 5 stars

Great Job

Gasworks London did a great job of fitting my boiler a couple of years ago... Dave reckoned they'd done a few in my street over the years and sure enough, when my next door neighbour's boiler died last Christmas, Gasworks replaced it and the neighbours were very happy with the job.  I also recommended Gasworks to my ex: She's just had a complicated flu and new boiler put in by Gasworks and is also very happy. Gasworks London do a solid  professional job with a small friendly team, and I would happily use them again or recommend to others.

January 21, 2025
Unprompted review
Advertisement
Rated 5 out of 5 stars

Dave was really helpful today…

Dave was really helpful today (Saturday). He gave a step by step guide to topping up pressure to get boiler operational. Gasworks are always professional responding to all issues promptly.

January 4, 2025
Unprompted review
Rated 5 out of 5 stars

Quick response, honest advice

Dave and his team at Gasworks responded to my inquiry immediately even though it was a Saturday. Having an engineer assess our boiler problem was reassuring and (of course) he solved the problem in no time. We used Gasworks to install a new boiler when we needed one. Highly recommend!

November 15, 2024
Unprompted review
Rated 5 out of 5 stars

What great engineers

What great engineers, so friendly, so helpful. New boiler fitted in no time. They ran through all the controls with me and left the place spotless. Very happy!

November 22, 2024
Unprompted review

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.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

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