M34 Gas - Mark Williams Gas Engineer is an independent local tradesperson covering BL1.

1. EEileen Peters★★★★★

   Mark has been servicing my 20 year old boiler for several years and is friendly and professional, and always explains everything clearly. I had a problem with my boiler recently and after discussing options with Mark, decided to have a new boiler fitted. The engineer arrived exactly on time and everything went smoothly, the room was left clean and tidy and the engineer showed me how to use the app/boiler. I will continue using M34 Gas for my annual service and would have no hesitation in recommending them.

   Google review · 10 Jun 2026
2. MMike★★★★★

   5 star plus. Got in touch with m34 gas regarding having a new boiler fitted. Mark came out the next day to price up. The boiler with fitting was priced reasonably. And mark was able to fit us in on the Friday that week. Great service

   Google review · 20 May 2026
3. AArronbw ABW★★★★★

   Just had Mark (M34GAS) look at my combi boiler for first the time, I can't recommend Mark enough. This Guy knows his job, very honest and VERY reasonable pricing. I found Mark by pure luck and hit the jackpot in Gas Engineers!

   Google review · 31 Mar 2026
4. JJackie Casey★★★★★

   Excellent service M34 Gas. Our boiler broke down on Saturday night, Mark did a call out first thing Monday morning, sourced and fitted the necessary parts, also serviced the boiler at no extra cost. 5 Star Service, highly recommend ????

   Google review · 10 Mar 2026
5. DDavid Potts★★★★★

   Recommend by a friend as my boiler had started to leak. Mark arranged to call within a couple of days (given it was Christmas). Arrived and set to work and after fully explaining what was required, completed the work, including a service, within a couple of hours. Will arrange the next service when it's due. Excellent service.

   Google review · 27 Jan 2026

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