M & M Gas Services Ltd

St. Albans5.0· 75 reviews · 2 sources
Companies House
Active incorporated business
Trust score
83out of 100
Rating5.0★
Review volume75
Source diversity2 sources
VerificationListed

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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.

Reviews · public evidence

What customers say

5.0out of 5
75 reviews in public evidenceCross-checked across 1 source
Which? Trusted Traders75 reviews · 5.0 avg

Highlights

"Contacted Martin to get two toilets repaired. Great communication throughout and work was completed to a high standard and at a reasonable price. So refreshing to find traders like this who are efficient freindly and above good at what they do."

Customer in HertfordshireWhich? Trusted Traders5.0 rating

"I have used M & M Gas Services for over 25 years. They are always my first choice. Martin and his team are reliable, competent and trustworthy. Always prompt and if delayed will always let you know. Excellent service."

Customer in HertfordshireWhich? Trusted Traders5.0 rating

"First time using Martin and the team. Had issues with our boiler across the bank holiday weekend. No hot water, fixed and working on Saturday, broken again Sunday evening. Martin then kindly came out bank holiday Monday at no extra cost and it’s been fine ever since. Would recommend without hesitation."

Customer in HertfordshireWhich? Trusted Traders5.0 rating

Detailed reviews

Customer in Hertfordshire5.0 / 5

Contacted Martin to get two toilets repaired. Great communication throughout and work was completed to a high standard and at a reasonable price. So refreshing to find traders like this who are efficient freindly and above good at what they do.

Which? Trusted Traders
Customer in Hertfordshire4.3 / 5

This is the second year running I have used M&M for my annual boiler service. Martin arrived on time and got straight to work, very thorough and completed all OK. have no reservations about using M&M again and thoroughly recommend.

Which? Trusted Traders
Customer in Hertfordshire5.0 / 5

I have used M & M Gas Services for over 25 years. They are always my first choice. Martin and his team are reliable, competent and trustworthy. Always prompt and if delayed will always let you know. Excellent service.

Which? Trusted Traders
Customer in Hertfordshire5.0 / 5

First time using Martin and the team. Had issues with our boiler across the bank holiday weekend. No hot water, fixed and working on Saturday, broken again Sunday evening. Martin then kindly came out bank holiday Monday at no extra cost and it’s been fine ever since. Would recommend without hesitation.

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Customer in Hertfordshire5.0 / 5

This was the first time I had called M&M Gas Services. I found them on Which Trusted Traders. We were about to have a new washing machine installed, but after checking the supply connection for the new machine, the installer told me that he could not proceed because there was a problem with an inlet valve as well as a problem with the stopcock under the sink. I was advised to call a plumber. I called M&M and spoke to Martin. We arranged an appointment. He arrived on time and was able to assess the situation quickly. He freed up both the inlet valve and the stopcock without any problem. He completed the job by testing and confirming that everything was operating normally. He told me that there should be no further problem when installing the new washing machine. He was correct. The charges from M&M Gas Services were fair and I was happy to learn that no parts needed replacing. I am now waiting for M&M to do a boiler service. I am confident that this will be carried out in the same efficient way.

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Customer in Hertfordshire5.0 / 5

M&M gas services were efficient open and transparent about fixing the air source heat pump. Despite having to go through the original supplier for parts and the frustration and difficulty that brought they remained professional and were able to complete the job. Would happily use them again.

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Customer in Hertfordshire5.0 / 5

M&M have helped us out several times over the last few years, including annual boiler servicing and some emergency leaks too! Martin and his colleagues have always been punctual and reliable, friendly and capable. I wouldn't hesitate to recommend this company.

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Customer in Milton Keynes5.0 / 5

M&M has carried out a number of projects over the past 10 years including a particularly demanding one which involved moving our boiler and hot water system into the roof space. They also carry out our regular boiler servicing at our property, and, our business properties, and some emergencies. Martin, Shaun and colleagues have always been punctual and reliable, friendly and capable. I highly recommend this company.

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Customer in Hertfordshire5.0 / 5

In 2022 Martin installed a new boiler for us in our old heating system and has carried out a maintenance service each year. We recently experienced a system failure resulting in the boiler not following the programme and shutting down. On making an early morning phone call we discovered that Martin was sick in bed but he advised us how to manage the situation without loosing heating until he could get an engineer out later that day. It was discovered that a motorised valve had failed in the old system and this was replaced first thing next day. Under the circumstances a first class service.

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Customer in Hertfordshire5.0 / 5

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.

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Customer in Hertfordshire5.0 / 5

Excellent service - arrived in good time, completed the work promptly and at a reasonable price. Definitely recommend

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Customer in Hertfordshire5.0 / 5

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,

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Customer in Hertfordshire5.0 / 5

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.

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Customer in Hertfordshire5.0 / 5

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.

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Customer in Hertfordshire5.0 / 5

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

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Customer in Hertfordshire5.0 / 5

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!!

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Customer in Hertfordshire5.0 / 5

Great service, flexible, responsive, and reliable. First time fix, when others were unclear on the issue or how to identify the problem.

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Customer in Hertfordshire5.0 / 5

Easy to arrange for them to come and assess the issue. They were polite, friendly, efficient, and knowledgeable. Would definitely use this company again.

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Customer in Hertfordshire5.0 / 5

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.

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Customer in Hertfordshire5.0 / 5

This is the third year running I have used M&M for my annual boiler service. As per the previous two years, the work was done very effectively and efficiently with absolute minimal disruption. The engineer ( a new employee) turned up exactly on time and carried out the work with a smile, and was very sociable. Would not hesitate recommending M&M.

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Companies House registration

Active incorporated business

Active

M & M Gas Services Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameM & M Gas Services Ltd
Company number06622813
Incorporated
Registered activityPlumbing & heating installation
Official checkListed
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Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence5.0★ from 75 public reviewsAcross Which? Trusted TradersCompanies HouseWhich? Trusted Traders
Sources

Every signal, traced to its origin

2 named sources
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 5.0★
Review volume: 75
Source diversity: 2 sources
!Worth checking yourself
!Verification: Listed

Public evidence last checked May 2026

Good to know

Common questions about M & M Gas Services Ltd

What do customers say about M & M Gas Services Ltd?

M & M Gas Services Ltd has 75 public reviews, averaging 5 out of 5, gathered across 2 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know M & M Gas Services Ltd's reviews are genuine?

M & M Gas Services Ltd's 75 public reviews are gathered and cross-checked across 2 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Is M & M Gas Services Ltd a registered business?

M & M Gas Services Ltd is a registered business on Companies House (company number 06622813), incorporated 18 Jun 2008, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.

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