Endorsed by Which?

M & M Gas Services Ltd

5.0

70 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday 08:00–12:00
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

Organisations and Awards

Jul 2020

About

We are a family run business based in st.albans, with over 30 years experience. We cover anything from a dripping tap, to full plumbing and heating systems. We are gas safe registered. We pride ourselves on our levels of service and quality of work.

What we do

  • Boiler, central heating and gas engineers

    • Underfloor heating
    • Boiler installation
    • Boiler servicing
    • Gas safety testing and inspection
    • Boiler repair
    • Power flushing
    • Radiators and central heating
    • Gas cooker installation
    • Immersion Heaters
    • Gas fire repair and servicing
    • Gas emergencies
  • Bathroom fitters

    • Bathroom refurbishment
    • Wet rooms
    • Bathroom tiling
    • Bathroom Installation
    • Bathroom design services
    • Accessible bathrooms and showers
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
    • Water softener installation and maintenance

Customer reviews

Why you can trust these reviews

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5.0
70 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Excellent service
Customer Service
Quality
Value
I had a problem with my gas boiler and called M&M. I was immediately impressed with the service I received and the prompt response. Having decided to replace the old boiler, Sean was able to give me an instant quote for a replacement, plus a replacement pump and thermostat, and new taps in the downstairs toilet. Having agreed on the quote, the work was carried out very quickly to a very high standard. During the whole process, I was impressed with the business-like but friendly attitude, and they gave me confidence in their experience and knowledge. Will definitely use again and highly recommend.
Customer in Hertfordshire Posted on 25/07/2025 , work completed 22/07/2025
Highly Recommended
Customer Service
Quality
Value
Easy to arrange for them to come and assess the issue. They were polite, friendly, efficient, and knowledgeable. Would definitely use this company again.
Customer in Hertfordshire Posted on 15/07/2025 , work completed 11/07/2025
Great service
Customer Service
Quality
Value
Great service, flexible, responsive, and reliable. First time fix, when others were unclear on the issue or how to identify the problem.
Customer in Hertfordshire Posted on 11/07/2025 , work completed 11/07/2025
Emergency Call out no heating
Customer Service
Quality
Value
I have had several plumbers in the past, and many have retired or moved away. Found M&M lived just around the corner from me, so gave them a try. Called at mine on his way home and identified the problem. Great service. Made arrangements to get parts, and one of the team called to fix the problem. Will now be on my list for any future problems and will recommend them to others. Prompt and friendly service, well done!!
Customer in Hertfordshire Posted on 16/06/2025 , work completed 02/05/2025
Quick response and great service
Customer Service
Quality
Value
We woke up to cold water and Sean came very promptly and diagnosed a blocked filter in the boiler (which was easily sorted) but warned that this was a quick fix and we would also need two new motorised valves. He gave us an estimate and scheduled the repair, which was carried out quickly and efficiently by his team. It didn't go completely smoothly, but we were particularly impressed by the speed of Sean's response to the issues that emerged on two occasions until the system was running properly. We have used M&M for different jobs over several years now and would thoroughly recommend them
Customer in Hertfordshire Posted on 12/05/2025 , work completed 28/04/2025
Leaking Rad
Customer Service
Quality
Value
Thermostatic valve was changed, no more leaks. I have dealt with Martin from M&M for a few years now, I find him to be friendly and helpful. Will continue to use when needed.
Customer in Hertfordshire Posted on 08/05/2025 , work completed 08/05/2025
Bathroom taps replaced
Customer Service
Quality
Value
Taps in the bathroom sink needed to be replaced. Piero came on time, disconnected the water and replaced the taps, then resumed the supply. All done quickly and efficiently for the agreed charge.
Customer in Hertfordshire Posted on 24/04/2025 , work completed 17/04/2025
Installation of hot water tank and fitting of shower pump
Customer Service
Quality
Value
M&M Services install a new hot water tank and a shower pump I must strongly recommend them they were the right price I believe very helpful and most friendly I would use them again excellent service,
Customer in Hertfordshire Posted on 15/04/2025 , work completed 14/04/2025
Efficient, friendly and professional
Customer Service
Quality
Value
Excellent service - arrived in good time, completed the work promptly and at a reasonable price. Definitely recommend
Customer in Hertfordshire Posted on 26/02/2025 , work completed 26/02/2025
Underfloor heating repair
Customer Service
Quality
Value
We have had an issue with our underfloor heating for a long time and after several different plumbers and many hours work, 2 new motors and a new manifold later it was still not functioning how it used to. Shaun was friendly and professional and quickly got to work assuring us that he would get to the bottom of it, which he did and very quickly! Shaun was the only plumber who picked up that there was a blockage in the pipe that was restricting the heating from working properly, this was then cleared and the heating was working properly once again! He checked we were happy with it after 24 hours and all is still working and warmer than it has been for a very long time! I highly recommend M&M gas services and we will certainly not need to look anywhere else again for plumbing issues.
Customer in Hertfordshire Posted on 07/12/2024 , work completed 06/12/2024