JJM Gas Services
Trust score
46out of 100
Rating4.8★
Review volumeLow · 3
Evidence breadth1 independent public source
Profile statusListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Reviews · public evidence
What customers say
These reviews are published independently on the named public source below — not testimonials this trader chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
4.8out of 5
Highlights
"John and Nick have just supplied and fitted a new boiler for me and I am immensely impressed with their work and service. They came to quote me on a Sunday afternoon, emailed me a quote the following day and I had a new boiler fitted and working by the time I cam home on the Wednesday evening. Polite, tidy and efficient! I will be using their services again."
"John was very friendly and managed to diagnose straight away. Would highly recommend."
"SGN had left me without gas due to a faulty co2 alarm!! I called few engineers and the prices where over and above what I paid 2 months ago. John had a good price and good reviews, he did the job in less than half hour and was very friendly. I would definitely recommend! Thank you John!"
Detailed reviews
John and Nick have just supplied and fitted a new boiler for me and I am immensely impressed with their work and service. They came to quote me on a Sunday afternoon, emailed me a quote the following day and I had a new boiler fitted and working by the time I cam home on the Wednesday evening. Polite, tidy and efficient! I will be using their services again.
John was very friendly and managed to diagnose straight away. Would highly recommend.
SGN had left me without gas due to a faulty co2 alarm!! I called few engineers and the prices where over and above what I paid 2 months ago. John had a good price and good reviews, he did the job in less than half hour and was very friendly. I would definitely recommend! Thank you John!
Sources
1 named public sourceEvery signal, traced to its origin
Review sources
Public evidence last checked May 2026
About
In London, Greater London.
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Worth checking yourself
Review volume: Low · 3
Evidence breadth: 1 independent public source
Profile status: Listed
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Common questions about JJM Gas Services
What do customers say about JJM Gas Services?
JJM Gas Services has 3 public reviews, averaging 4.8 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know JJM Gas Services's reviews are genuine?
JJM Gas Services's 3 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published — so you can open the source and read them yourself rather than trusting a single curated 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.
How long has JJM Gas Services been trading?
JJM Gas Services has been reviewed on public sources since 2022.