AS Plumbing and Gas
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
What the public record says
Highlights
"AS plumbers was recommended to me by a neighbour some years ago. They do an excellent job whatever the plumbing work in hand and I would not wish to use any other company. They are reliable, efficient, friendly & helpful. Very professional."
"Tom was very knowledgeable and ran tests on the boiler and gas hob, he spotted that there was an issue after testing the gas meter, he contacted SGN who then came out within 2 hours to replace the meter. Great service by Tom and we highly recommend AS plumbing and gas, we will no doubt be repeat customers for all our yearly checks and other services in the future. Dan and Agata"
"Always friendly and efficient service"
Detailed reviews
AS plumbers was recommended to me by a neighbour some years ago. They do an excellent job whatever the plumbing work in hand and I would not wish to use any other company. They are reliable, efficient, friendly & helpful. Very professional.
Tom was very knowledgeable and ran tests on the boiler and gas hob, he spotted that there was an issue after testing the gas meter, he contacted SGN who then came out within 2 hours to replace the meter. Great service by Tom and we highly recommend AS plumbing and gas, we will no doubt be repeat customers for all our yearly checks and other services in the future. Dan and Agata
Always friendly and efficient service
Excellent plumber.
We have used AS Plumbing before and have always been impressed with their work, attitude and knowledge. We had an issue with our boiler (low-pressure which we managed to pressurise, but were worried why it happened). They managed to fit us in an appointment within a day. Tom carefully inspected our boiler and radiators for any issues. He was able to verify we had no leaks and recommended we keep an eye on things (we have seen no drop in pressure so far). Although Tom verified that things are ok, it's always safer to get an expert to make sure. We trust them and their work has proved to last. There is no higher praise than to say that we would definitely use them again.
I've use this team for my boiler check every year and am never disappointed. A very friendly engineer who explains any issues he's found and what he's working on as part of the service and excellent communication before and after. Would recommend!
Thanks again to AS Plumbing for sorting out bathroom sink and toilet. Alfie took time to check and explain what was going on and what he'd done to fix both.
Professional and efficient. I have been using AS Plumbing and Gas for the past 4 years and would highly recommend them.
New gas boiler fitted in one day. Work was done in an efficient tidy way , helpful and polite tradesmen
I always receive excellent service from AS Plumbing & Gas. They are efficient, reliable, friendly & trustworthy.
Excellent service provided as usual by the AS Plumbing team, highly recommended and sure I’ll be using them again.
I needed new mastic sealant around my bath and repairs or replacement of bathroom sink taps. Communication with the office was first-rate. The plumber, Al, was punctual, competent, efficient and friendly. Sealant neatly replaced and new taps fitted quickly. I can definitely recommend AS Plumbing and Gas.
The plumber who visited did a great job and helpfully explained the issue and how he resolved it. Top marks also go to the member of the team who booked the appointment, who was very friendly and helpful.
Prompt and professional
We had a small leak in our cabinet under the sink. I thought it was due to the washing machine waste pipe. I called AS plumbers and they gave me an appointment for the following day. The plumber alerted me when they were on the way and arrived promptly. He investigated the source of the leak and showed to me it was coming from our Quooker canister and gave us advice on what to do. I found the plumber to be knowledgeable, clean and efficient. I would definitely use them again.
Quick and efficient service, was able to be seen next day after calling and speaking to Ashley who was extremely helpful, would happily use again if needed
Fantastic, my first time using AS plumbing and extremely happy.
Excellent. I don’t often leave reviews but this company is a great exception. Very professional, knowledgeable, reliable, helpful, polite, friendly & cheerful. Thoroughly recommend. Boiler serviced followed by power flush, new pump & thermostatic valves fitted to radiators which made great improvement & year later just had another annual boiler service & all very fine.
Been using AS Plumbing & Gas since moving to London in 2019, all jobs completed with no fuss, great bunch of lads.
We have used AS Plumbing and Gas (London) Ltd for over 20 years. I am currently renovating my house and have asked them to renovate my three bathrooms. Highly recommend them!
Rated 5.0★ — above the local average for gas engineers in London
Across 286 rated gas engineers in London, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.
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Public evidence last checked May 2026
