Gas Worx Southampton Ltd is a heating solutions provider specializing in custom design installations and maintenance of heating and hot water systems. The company offers a range of services, including new boiler installations, annual servicing, and emergency support. Their expertise extends to modern energy-efficient solutions such as heat pumps, air conditioning systems, solar energy, and battery storage. Gas Worx aims to deliver safe and reliable services tailored to the specific needs of residential customers. With a commitment to raising the standard of heating services in the UK, Gas Worx focuses on customer satisfaction and technical proficiency. The company's accredited engineers ensure that all installations are compliant with industry standards, providing peace of mind to homeowners. Gas Worx Southampton is dedicated to making heating maintenance hassle-free and accessible, offering 24/7 support to address urgent needs.
Gas Worx Southampton Ltd receives high praise for its service quality, with many customers highlighting the professionalism and efficiency of the staff. Reviewers frequently commend the team, particularly Sam and Ryan, for their thoroughness during installations and repairs, such as boiler replacements and heat pump installations.
Customers appreciate the prompt responses and clear communication, often noting that jobs are completed cleanly and on time. However, some negative feedback arises regarding time management, with a few consumers expressing concerns about being charged for time spent on-site, especially if the work appears to be slow. Additionally, there are isolated complaints about property damage during work, which has caused frustration for some customers.
Summary generated with AI from recent reviews
Each source counts by its number of reviews. Only reviews written by people are scored.
| Source | Rating | Reviews | Weight | 6-mo | Fake risk |
|---|---|---|---|---|---|
Trustpilot Imported Trustpilot reviews | 4.7 | 103 | 100% | ● Low |
Monthly average rating from reviews written by people · latest review Jun 2025.
| Month | Average | Reviews |
|---|---|---|
| Jul 24 | 5.0 | 1 |
| Aug 24 | 5.0 | 1 |
| Sep 24 | 5.0 | 2 |
| Oct 24 | — | 0 |
| Nov 24 | — | 0 |
| Dec 24 | — | 0 |
| Jan 25 | 5.0 | 2 |
| Feb 25 | — | 0 |
| Mar 25 | — | 0 |
| Apr 25 | 3.0 | 2 |
| May 25 | 4.7 | 3 |
| Jun 25 | 4.2 | 5 |
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 103 most recent reviews.
“I was recommended to speak to Stuart from Gas Worx about a heat pump”
“What went wrong”
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · HVAC Services.
| Company | Overall | Legit | Service | Value | Delivery | Trend | Reviews |
|---|---|---|---|---|---|---|---|
 | 4.7 out of 5 (good) | 100 out of 100 | 4.8 out of 5 (good) | 4.4 out of 5 (good) | 4.8 out of 5 (good) | — | 103 |
| 2.6 out of 5 (poor) | 100 out of 100 | 1.7 out of 5 (poor) | 2.3 out of 5 (poor) | — | — | 1,129 | |
| 5.0 out of 5 (good) | 100 out of 100 | 5.0 out of 5 (good) | — | 5.0 out of 5 (good) | — | 195 | |
| 5.0 out of 5 (good) | 100 out of 100 | 5.0 out of 5 (good) | 5.0 out of 5 (good) | 5.0 out of 5 (good) | 0% | 192 | |
| 5.0 out of 5 (good) | 100 out of 100 | 5.0 out of 5 (good) | — | — | — | 22 |
Bottom line: Gas Worx Southampton Ltd is #4 of 5 on overall rating in this group. On value, 100% GAS scores higher (5.0 vs 4.4).
103 reviews of Gas Worx Southampton Ltd. Filter by what matters to you.
Over a year ago
What went wrong? OK, well, my Mother 80, allowed Sam and his men to put their scaffolding up in her garden to help access her neighbours roof. This resulted in two plant pots being smashed, pictures a... See more
Over a year ago
Ryan and Ed arrived on time for the annual boiler service. Job completed in the usual clean and efficient manner.
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I was recommended to speak to Stuart from Gas Worx about a heat pump. We had a brief phone call, and he explained what they are as I know very little about them. I was very happy with the service and quote provided. The installation isn’t complete yet, but I’m looking to book it later this year.
What went wrong? OK, well, my Mother 80, allowed Sam and his men to put their scaffolding up in her garden to help access her neighbours roof. This resulted in two plant pots being smashed, pictures are available. Sam, has told my mother repeatedly, that he is a man of his word, and will replace the pots. Firstly he blamed the scaffolders, who then insisted it was not their fault and that they did not cause the damage, this then led to a number of messages between everyone, which basically ended up saying that these plant pots would be replaced buy Sam, who you may remember gave 'his word'. I have sat quietly in the background throughout this almost Fawlty Towers episode but now feel it is time to pitch in with my 2p worth. I don't know how much Sam made from this job, but replacing two simple plant pots, which he said he would, being a man 'of his word' would be a lot cheaper than what comes next. My Mother is 80 years old, all she wanted was for this Company to replace her two simple, plain plant pots, around thirty pound, which they said they would do, but they have brushed my mother aside like she is an irritant, ignored her, lied to her and now frankly do not even reply to her texts. Now ignoring her pleads and texts for weeks to replace the pots that they smashed, which, remember, Sam being a man of his word said he would personally replace. Please remember, she gave them permission to put their scaffolding up in her garden. He has been given plenty of opportunities to respond to these pleas, and now he clearly feels he has got away with this one. Hence this review. Do not let this Company intrude into your life or property, Sam is not a man of his word.
Great experience from start to finish. From the initial consultation and the discussion about the quote and technical details to the installation day with Ryan and his team. Thermaskirt installation in the new dinning area was really smooth. Not to mention that Ryan was immediately available for some quick answers to our queries following the installation. Very happy with the overall service. Highly recommended!
Ryan and Ed arrived on time for the annual boiler service. Job completed in the usual clean and efficient manner.
I was impressed with Sam from the start when he came to do the estimate for the heat pump When Sam and Ryan arrived to install the pump they were very thorough and clean with their work didn’t leave any mess nothing was too much then they went above and beyond their duties to work around us I will be happy to recommend Gas Worx Southampton for the heat pump installation Jarnail Khatkar
Polite, clean, tidied up every day and did the job the way they said they would do. Some initial hiccups but these were rectified promptly and cheerfully.
I requested a gas fire and was given a very fair estimate. However, I decided to have a different one fitted as it had some extras which I liked. This was no problem and the estimate changed to reflect the higher purchase price. The set a date, completed the the removal and instillation of the new fire. Cleaned and tided the area. The installer, whose name I am afraid I have forgotten (old age) , was very cheerful and respectful throughout the job. Very pleased.
Friendly and efficient service. Chap who did the service was kind and professional.
Excellent service, which was immediate.
Be aware these guys charge by the time their vehicle is on site. If they work very slowly, with plenty of chatting and downtime then they will charge you for that. That is how a simple toilet flush change came in at 2 hours of labour, after I had already isolated, drained and dried the cistern. Check out YouTube to see plumbers taking a fraction of the time to do the same job, and agree a labour charge before engaging these guys.
Very professional, reliable and honest. Sam fixed my central heating which I can only say was very difficult as it was in a small cupboard. He worked though out the day to make sure I had heating. He explained what he had done and why the problem occurred. If you want a company that does not cut corners and provides a excellent service gas worx is for you This is gas worx not gas works. Thanks again Sam
Prompt response from Gas Worx for a boiler/heating/hot water issue during the Christmas period - was able to diagnose the problem very quickly. Friendly , professional service. Clear explanation of the problem and the solution. Prompt documentation sent through of work carried out.Many thanks
Sam & Ed were very professional and did a great job replacing the top trim around my Thermashirt. They were friendly, polite and cleaned up after themselves. Sam worked into the evening to get the job done to an excellent finish. Very pleased and would recommend
Gas Worx Southampton came out quickly to replace my old and broken boiler. The engineer was friendly, polite and cleaned up after himself when the works were finished. Very happy with the service.
Gas Worx Southampton came out promptly to deal with my 96 year old mothers leaking boiler. Sam the engineer was very friendly and professional. The boiler was replaced and even my mother was pleased with the work which is praise of the highest level.
Sam & Ed worked tirelessly all day to early evening. The unvented water system works as promised and we now have good water pressure throughout the house.
The whole team were great from start to finish. From working with Stuart to amend the original online Thermaskirt layout design done by Discrete Heat to a more sensible and less costly one. To the hard work of the installation team of Sam, Ryan and Ed for the 6 days it took in the end to replace all the radiators with Thermaskirt. Even thought the replacement took nearly twice as long as estimated due to the unexpected solid floors and challenges of the non standard size pipe work, we were only charged a small extra cost for some parts to connect the different gauge pipes. The original quote for fitting cost was honoured.
Great from start to finish My system just wasn’t heating up since having an extension with an additional 6 radiators, after being told by many people that the cause was an underpowered boiler, I contacted GasWorx for a boiler replacement quote To my surprise, I was told that I didn’t need a new boiler and that in fact all my issues are down to a dirty system that was restricting flow A few days later, GasWorx’s fitted me in and an engineer arrived onsite with all the gear ! 6 hours later and my system was running clean and clear and the heating is working better than ever I can’t thank you enough for sorting my system out and for being so upfront about what was causing my heating issue, I mean most would have just charged me for a boiler replacement! You have saved me so much time and money and for that I am truly grateful
Workmen very pleasant and very tidy. Very pleased with heat pump, alltold a job well done
Ours was never going to be an easy fit. A replacement of an oil boiler in a 20 year old house but keeping the existing hot water tank which was fitted with soar thermal heating and keeping the towel rails working separately. All in a home that had been messed about plumbing wise previously with no records. The whole experience with GASWORX was excellent, from initial contact on the phone to site visit, then survey, the offer which was competitive, the BUS Application and the actual fitting. The whole team were great to get to know and that makes a huge difference. They inspired confidence and ability, answering all my idiot questions carefully and fully. They were nice people to have around our home for what by its nature is a pretty intrusive event. Yes a few things did go wrong, but we were fully informed throughout and the team worked long into the evenings to get it right. So yes we would thoroughly reccommend them. Oh and by the way it is working well, a few weeks in, better than I hoped for. Thank you to a very pleasant team of professionals.
Gas Worx Southampton Ltd is a heating solutions provider specializing in custom design installations and maintenance of heating and hot water systems. The company offers a range of services, including new boiler installations, annual servicing, and emergency support. Their expertise extends to modern energy-efficient solutions such as heat pumps, air conditioning systems, solar energy, and battery storage. Gas Worx aims to deliver safe and reliable services tailored to the specific needs of residential customers. With a commitment to raising the standard of heating services in the UK, Gas Worx focuses on customer satisfaction and technical proficiency. The company's accredited engineers ensure that all installations are compliant with industry standards, providing peace of mind to homeowners. Gas Worx Southampton is dedicated to making heating maintenance hassle-free and accessible, offering 24/7 support to address urgent needs.
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