Plumbers in London
46 plumbers in London with multi-platform trust scores.
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Who is the best plumber in London, Ontario?
The most trusted plumber in London, Ontario is Mr. Rooter Plumbing of London ON, with a ProScore of 92/100. ProScore has scored 46 plumbers in London across 10+ data sources and 20+ trust signals. 15 of the 46 are Trusted-tier (70+) or higher.
Trust scores last computed between July 3, 2026 and September 19, 2026.
Which plumbers in London score highest?
Top 30 of 46 scored plumbers in London, ranked by ProScore.
ProScore scores 46 plumbers in London, and their average score is 67 out of 100. 15 of them reach the Trusted threshold of 70 or higher. 17 are registered with WSIB and 5 hold a TSSA licence. 45 have Google reviews on file — 7,735 reviews in total, and 33 carry a Better Business Bureau rating.
Mr. Rooter Plumbing of London ON ranks 1st of the 46 plumbers ProScore scores in London, holding a ProScore of 92 out of 100 (Elite tier), and reports 26 years in business. Its score draws on 2,083 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+.
Finan Home Service ranks 2nd of the 46 plumbers ProScore scores in London, holding a ProScore of 81 out of 100 (Elite tier). Its score draws on 863 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Salliss Plumbing & Heating ranks 3rd of the 46 plumbers ProScore scores in London, holding a ProScore of 79 out of 100 (Trusted tier). Its score draws on 271 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Best Plumbing and Drainage Contractors ranks 4th of the 46 plumbers ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 85 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Its ProScore has risen since the previous recompute.
Plumbhouse Plumbing, Heating & Electrical ranks 5th of the 46 plumbers ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 73 Google reviews averaging 4.5 out of 5 and a Better Business Bureau rating of A+.
Plumbing For Life ranks 6th of the 46 plumbers ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 170 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
Salmon Plumbing & Heating ranks 7th of the 46 plumbers ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 137 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Stacey Heating & Plumbing ranks 8th of the 46 plumbers ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 65 Google reviews averaging 4.6 out of 5 and a Better Business Bureau rating of A+.
Accurate PHC Inc. ranks 9th of the 46 plumbers ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 24 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB and licensed by the TSSA. Its ProScore has risen since the previous recompute.
Jumbo Plumbing ranks 10th of the 46 plumbers ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 36 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
Mike Pope Plumbing & Heating ranks 11th of the 46 plumbers ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 97 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB and licensed by the TSSA.
S.W. Atchison Plumbing & Heating Ltd. ranks 12th of the 46 plumbers ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 52 Google reviews averaging 4.0 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Crozier Plumbing of London ranks 13th of the 46 plumbers ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 2 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A.
Roy Inch & Sons Home Services by Enercare ranks 14th of the 46 plumbers ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 1,495 Google reviews averaging 4.7 out of 5.
The Water Guys ranks 15th of the 46 plumbers ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 53 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of C.
Hy-Pro Plumbing & Drain Cleaning of London ON ranks 16th of the 46 plumbers ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 132 Google reviews averaging 4.6 out of 5 and a Better Business Bureau rating of A+.
Iron Horse Plumbing ranks 17th of the 46 plumbers ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 27 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Remedy Plumbing ranks 18th of the 46 plumbers ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 5 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Superior Plumbing & Heating of London ranks 19th of the 46 plumbers ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 252 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+.
U Need A Plumber ranks 20th of the 46 plumbers ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 44 Google reviews averaging 4.1 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Household Plumbing ranks 21st of the 46 plumbers ProScore scores in London, holding a ProScore of 68 out of 100 (Good tier). Its score draws on 115 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+.
Hyde Park Plumbing & Heating Limited ranks 22nd of the 46 plumbers ProScore scores in London, holding a ProScore of 68 out of 100 (Good tier). Its score draws on 266 Google reviews averaging 3.9 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
London Smart Plumbing ranks 23rd of the 46 plumbers ProScore scores in London, holding a ProScore of 68 out of 100 (Good tier). Its score draws on 160 Google reviews averaging 5.0 out of 5.
Corner Gas Plumbing & Home Renovations ranks 24th of the 46 plumbers ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 16 Google reviews averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
Discount Drain ranks 25th of the 46 plumbers ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 126 Google reviews averaging 4.7 out of 5. Public records show it is licensed by the TSSA.
London Plumbing ranks 26th of the 46 plumbers ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 333 Google reviews averaging 4.8 out of 5.
The Plumber ranks 27th of the 46 plumbers ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 2 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Triton Home Service ranks 28th of the 46 plumbers ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 312 Google reviews averaging 4.8 out of 5. Its ProScore has risen since the previous recompute.
Paton Brothers Plumbing Ltd ranks 29th of the 46 plumbers ProScore scores in London, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 64 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+.
Pope Plumbing (R W Pope & Sons Ltd) ranks 30th of the 46 plumbers ProScore scores in London, holding a ProScore of 65 out of 100 (Good tier). Its score draws on 37 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+.
Of 46 plumbers in London: 2 rated Elite (81+), 13 rated Trusted (70+), and 29 rated Good (54+).
How is a plumber's ProScore calculated?
Every plumber in London is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing and WSIB), Transparency (online presence and profile completeness), and Sentiment (AI analysis of customer reviews). The result is a ProScore from 0 to 100.
Read the full methodology →Who are the top 3 plumbers in London?
Browse all plumbers in London →What else should I check before hiring plumbers in London?
Frequently Asked Questions
Who is the best plumber in London?
Mr. Rooter Plumbing of London ON has the highest ProScore (92/100) among 46 plumbers in London, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy plumber in London?
Look for plumbers with verified active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In London, 2 plumbers hold Elite-tier ProScores (81+), 13 are Trusted-tier (70+), and 29 are Good-tier (54+).
Are plumbers in London licensed?
Plumbers in Ontario should hold valid business registration and active WSIB workers compensation coverage. ProScore verifies these credentials for every provider. Of the top 30 plumbers in London by ProScore, 11 carry active WSIB coverage.
How many plumbers has ProScore scored in London?
ProScore has scored 46 plumbers in London, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between July 3, 2026 and September 19, 2026.
What's the ProScore distribution among plumbers in London?
Among 46 plumbers in London, Ontario: 2 are Elite-tier (81+), 13 are Trusted-tier (70+), and 29 are Good-tier (54+). The top 30 average a ProScore of 71/100, with Mr. Rooter Plumbing of London ON leading at 92/100.