# Gas Proco (London) Ltd Gas Proco (London) Ltd is a plumber in London. No public review rating shown yet. This is the MyTrustedTraders public-evidence profile for this trader, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement. Trust Score: 59 out of 100 (good record, gaps to check). The score rests on 13 reviews in the last 12 months. We cross-checked Companies House: this business is officially registered for work that matches the plumber services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry. 13 reviews in the last 12 months. ## About Gas Pro Co is a company based from the Clapham area that delivers exceptional Gas, Heating and Plumbing breakdown and repair works. We are a small company with 24 years experience in the industry that deals with all Gas, Heating and Plumbing issues at the domestic, light commercial and commercial level. We can be give you an idea of costs by phone, email or ideally through a video call. We will sure up a cost before any work is done through a quotation. Gas pro co are Gas Safe Registered and ciphe registered. You can also find us on Checkatrade for further reviews and services. We look forward to hearing from you. ## Public review evidence (by source) | Source | Average rating | Reviews | | --- | --- | --- | | Which? Trusted Traders | No rating shown | 59 | Most recent review: 6 months ago. ## What customers consistently say _Recurring strength themes from this trader's own reviews, each with a verbatim quote:_ - **Clear communication** (Quoted from 3 reviews): "His excellent service level, communication and ease of arranging his visit" · Which? Trusted Traders, 11 Jan 2026 _Respectful and tidy in your home (3 reviewers describe them being respectful of the home and leaving it clean):_ "He worked efficiently and cleanly tidying up after he finished" · Which? Trusted Traders, 28 May 2025 ## What customers consistently praise _Themes mentioned across this trader's own public reviews:_ - Friendly & polite (mentioned in 46% of reviews we've read) - Professional (mentioned in 46% of reviews we've read) - Punctual (mentioned in 31% of reviews we've read) ## In customers' own words _Verbatim quotes from this trader's public reviews, each attributed to its source:_ > "Our combi-boiler failed, I contacted Carl having found his details on which? trusted traders. He visited the same day to identify the issue. Unfortunately the failure was terminal for our 16 year old boiler. He researched replacements, giving us a few alternatives. Once we decided on the replacement, he purchased & arranged to replace the boiler, all done within a few days. He kept us updated throughout, clearly outlined the potential cost, which was the final cost & cleaned up following the installation. I would definitely recommend Carl & wouldn’t hesitate in using him again if needed" > Source: Customer in Greater London (5.0, via Which? Trusted Traders) > "I called Carl as I had lost all water pressure in my flat and he helpfully came out that day to rectify the issue, which he did very efficiently, especially considering difficult access to the source of the problem. Carl is very friendly and helpfully advised on some simple maintenance items I could do myself based on wear and tear he could see developing in my bathroom. I feel relieved to have found someone I can trust and rely on - thank you!" > Source: Customer in Greater London (5.0, via Which? Trusted Traders) > "Carl was brilliant. He diagnosed a pressure issue with our boiler very quickly, explained the problem, set out the cost to fix it, and completed the job very efficiently. It has been working perfectly ever since. Carl was very friendly and made himself available on the same day to fix the issue. He was professional and gave us some excellent advice on boiler maintenance going forwards. Would strongly recommend." > Source: Customer in Greater London (5.0, via Which? Trusted Traders) ## Trades Plumber ## What we checked, and when _What MyTrustedTraders independently checked for this business (verified items only):_ - Review volume: MyTrustedTraders shows 59 public reviews on this profile. (via MyTrustedTraders public listing) - Public listing spread: MyTrustedTraders shows 2 public listings for this trader. (via MyTrustedTraders public listing) - Business identity: MyTrustedTraders shows public business identity data for company number 08886484 with operating status active. (via MyTrustedTraders public listing) - Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing) Full verification checklist: https://mytrustedtraders.com/traders/gas-proco-london-ltd/checks ## Credentials & sources - Credentials shown: 1 (none currently verifiable) - Companies House status: Active - Run by 1 director; the longest-serving current director was appointed in 2014 (Companies House officers) - Previously traded as CAPITAL MAINTENANCE & INSTALLATION LTD (until 2025) (former Companies House name) - Evidence held from: Which? Trusted Traders, Companies House - Check dates vary by source. Where we hold a date, the check shows it. ## Before you hire a plumber _What to check when choosing this kind of trade (general guidance, not a claim about this business):_ - Agree the call-out fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints. - Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work. - Gas and boiler work is a separate, regulated trade, not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start. - For the water-regulations side of plumbing, a WaterSafe-approved plumber is vetted, qualified to the water regulations and insured. You can check yours or find one free at watersafe.org.uk. - Look for consistent reviews across several named sources, not one polished profile. ## Contact - Phone: 07740 197017 --- Source: MyTrustedTraders, https://mytrustedtraders.com/traders/gas-proco-london-ltd Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.