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About Gas Weiss

Gas Weiss Ltd are a London gas engineering & plumbing service provider. We are servicing thousands of properties within the London area and are renowned for our outstanding customer service, our fast response, and honest pricing policy.

Fast response

Big enough to cope, small enough to care

Commercial Engineers


Many years experience

Our Services

Underfloor Heating

Gas Weiss are highly experienced in boilers installations and repairs for residential properties.

Boiler Installations & Repairs

– Brand new boilers supply & fit
– Fast breakdown repair service
– Efficiency checks & analysis

Central Heating & Radiators

– Brand new radiators supply & fit
– Central heating planning and design
– Radiators flushing and repairs

Cookers & Hobs Connections & Repair

– Brand new cooker/hob supply & fit
– Repairing existing cookers & hobs
– Efficiency checks and analysis

Gas Safe Certificates

– Fast service Gas Safe Certificates
– Boiler cleaning & servicing
– Advanced digital format certification


– Plumbing fittings and installations
– Plumbing planning and design
– Unblocking drains/pipes

Our Google Reviews

Gas Weiss Plumbing and Heating Ltd
Based on 22 reviews
powered by Google
Margaret McPhee
Margaret McPhee
12:07 19 Nov 21
After a challenging couple of days with a blocked kitchen sink and a grumbling boiler (so no hot water or central... heating), I finally called Gas Weiss. Within ten minutes, (not the two hours guaranteed by the office), two highly competent plumbers arrived and sorted both problems out, which turned out to be inter-related . They were clean, tidy, reassuring and knowledgeable. I am very happy to recommend this more
Shaieb Tanweer
Shaieb Tanweer
17:23 18 Nov 21
Great service. Matt the engineer came quickly and helped diagnose a complex wiring problem for my central heating... system. You can see from the attached photo how many wires needed to be looked at. An hour later I have hot water, underfloor heating and central heating. I found Matt to be knowledgable and very capable. Thanks so much guys. Really appreciate the work. Highly more
11:42 15 Oct 21
Couldn't recommend more! Yis was our engineer and he was wonderful. Very thorough and helpful with our queries. Thank... you!read more
Orlin Sirenyakov
Orlin Sirenyakov
19:12 01 Apr 21
The company was recommended by the boiler manufacturer. I compared their price and it was with not a lot, but still... better than the other companies. The guys were friendly and professional. The installation of the new boiler went smooth and I am very happy with the 10 years warranty more
Tamara Sireling
Tamara Sireling
09:15 27 Jan 21
The service itself was great, but unblocking a sink for £102 is beyond rediculous. As that is just the call out fee,... it's lucky no extra work was needed for such a price during hard times. The boy that came however was very covid conscious, polite and did a wonderful more
Daniel Miller
Daniel Miller
13:16 06 Nov 20
Fantastic. Could not recommend enough. Received a confirmation of the e booking right away. Was also notified when the... engineer was on his way. The ye engineer, Cliff, was very professional and friendly and sorted the problem out in under an hour. Got the invoice right away and paid online. Fastest call to fix I've ever experienced, will definitely be going back for all future plumbing and heating more
shimi ostreicher
shimi ostreicher
11:36 05 Nov 20
Great service a the job well done. thanks a million. a***
Shimon A. Hirschler
Shimon A. Hirschler
12:28 22 Sep 20
I have made a google complaint that they should increase the amount of stars as the number of stars are an... underestimation - The service provided is top class professional fast and efficient would recommend them any more
Karen Ellis
Karen Ellis
19:19 17 Jun 20
The most exceptional service I have experienced. The patience during an awfully hard job, the cleanliest engineers, a... truelly awesome pair of workmenread more
ben stones
ben stones
16:05 13 Sep 19
Great company all round professionals
Tanya Gilligan
Tanya Gilligan
14:31 26 Jun 19
I have just employed Gas Weiss to fit a new Ideal boiler after finding them listed as a recommended Ideal installer. I... am extremely impressed with the service, installation, knowledge, flexibility and cannot recommend them, or my new Ideal boiler, enoughread more
Michael Hanfling
Michael Hanfling
18:24 28 Mar 19
Amazing company I highly recommendedQuick and efficient and honest!!
Sian Lisney
Sian Lisney
19:41 26 Jul 18
I didn’t use this company for their plumbing skills but thought I should give them a review anyway. A member of their... staff (Matt) was very helpful to me when he saw with a flat tyre while he was out on a job. I was stuck and couldn’t get to work so he asked if I was ok and changed my tyre over for me. I think This says a lot about the type of people who work for this company and would recommend them more
Tony Strum
Tony Strum
10:22 14 Feb 18
My Warehouse Infrared Radiant Heater has decided to pack up. The quick response and service Gasweiss provided me with,... was second to none. Now my warehouse is nice and warm. My employees can now enjoy working in this warm environment. Thanks to Billyread more
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