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Mains Gas Ltd logo, heating engineer in Brecon

Mains Gas Ltd

Availability
Emergency call-outs

4.8(42)Brecon  •  OFTEC  •  REFCOM

Heating work

Services

Reviews

4.8

Mains Gas Ltd is described by most reviewers as polite, professional and tidy, with several saying they would recommend the firm. Boiler installations and services are reported as completed to a high standard, with clear explanations and advice, and reviewers often mention good communication from the office and engineers. One reviewer said a problem was sorted within an hour, and another reported a minor post-installation airlock fixed after hours on a Friday evening. However, one reviewer said a £203 repair did not fix the boiler and that a new boiler was then recommended, with the full amount still charged. Another described the firm as unhelpful over the phone and unwilling to accommodate appointment times.

SA
Sue A.Jun 2026 · Google

Excellent service from Mains Gas from start to finish. We recently had a new oil boiler installed and the whole process was smooth and stress-free. The engineers were professional, tidy, and completed the work to a very high standard. Everything was explained clearly, and the new boiler is working perfectly. We would highly recommend Mains Gas to anyone looking for reliable and trustworthy heating engineers. Quality work at a fair price. Thank you again!

SJ
Simon J.Jun 2026 · Google

After having several heating engineers look at our heating system over the years, I can honestly say that Mains Gas have been the most professional, knowledgeable, and reliable company we have dealt with. From the initial survey through to the installation of our new boiler, everything was handled perfectly. They took the time to explain all of the options available, answered every question we had, and provided a clear quotation with no pressure or hidden costs. The installation team arrived on time, were polite, respectful of our home, and worked incredibly hard throughout the job. The standard of workmanship was excellent, and everything was left clean and tidy once the installation was complete. What really stood out compared to other heating engineers we have used in the past was the communication and attention to detail. We were kept informed every step of the way, and it was clear that customer satisfaction is a genuine priority for the whole team. Our new boiler is working brilliantly, the heating performance throughout the house has improved significantly, and we have complete confidence in the system. If you're looking for a trustworthy plumbing and heating company that genuinely cares about quality and customer service, I would highly recommend Mains Gas. A fantastic experience from start to finish and a company we will definitely use again in the future. ⭐⭐⭐⭐⭐

LA
Lauren A.Apr 2026 · Google

We were charged £203 to fix our oil bolier, labour and cost of the part. Fitted but did not fix the problem, came back out the next day and told we needed a new boiler. Still had the pay the full £203. I understand paying for the call out but paying for the wrong part that didn't fix the problem when they missed where the boiler was leaking from seems a little unfair. Would only have taken money off from the bill if we bought a new boiler from them. Man that came out was lovely though

AN
adele N.Apr 2026 · Google

superb service. The problem had been worked on with a few others but the guys from Mains sorted the issue within an hour, cool, calm and collected. Thanks!

RC
Rob MacLeod C.Aug 2025 · Google

Excellent. A complex boiler and control system installation was carried out efficiently, tidily, within budget, and without fuss. A minor post-installation hitch due to an airlock in the pump was sorted out promptly, after working hours on a Friday evening. A pleasant and polite firm, thoroughly recommended.

Area

Brecon, LD3

Areas covered

Powys

Opening times

  • Monday8:00 AM – 5:00 PM
  • Tuesday8:00 AM – 5:00 PM
  • Wednesday8:00 AM – 5:00 PM
  • Thursday8:00 AM – 5:00 PM
  • Friday8:00 AM – 5:00 PM
  • Saturday9:00 AM – 1:00 PM
  • SundayClosed

Additional information

  • Incorporated 2019
  • Gas engineer
  • OFTEC
  • REFCOM
  • Emergency call-outs
  • Free quotes
  • Domestic work
  • Commercial work
  • Landlord work
  • Work guaranteed
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