Plumbers in Cornwall
7 plumbers in Cornwall with multi-platform trust scores.
Loading plumbers...
Who is the best plumber in Cornwall, Ontario?
The most trusted plumber in Cornwall, Ontario is Casey Mechanical Inc, with a ProScore of 81/100. ProScore has scored 7 plumbers in Cornwall across 10+ data sources and 20+ trust signals. 4 of the 7 are Trusted-tier (70+) or higher.
Trust scores last computed October 13, 2026.
Which plumbers in Cornwall score highest?
All 7 scored plumbers in Cornwall, ranked by ProScore.
ProScore scores 7 plumbers in Cornwall, and their average score is 69 out of 100. 4 of them reach the Trusted threshold of 70 or higher. 1 is registered with WSIB and 3 hold a TSSA licence. 7 have Google reviews on file — 1,829 reviews in total, and 4 carry a Better Business Bureau rating.
Casey Mechanical Inc ranks 1st of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 81 out of 100 (Elite tier). Its score draws on 111 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB and licensed by the TSSA.
Walker ClimateCare ranks 2nd of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 81 out of 100 (Elite tier). Its score draws on 1,513 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Public records show it is licensed by the TSSA.
Aurele St-Jean Plumbing ranks 3rd of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 79 out of 100 (Trusted tier). Its score draws on 54 Google reviews averaging 4.6 out of 5 and a Better Business Bureau rating of A+. Public records show it is licensed by the TSSA.
Iron Fort Construction & Renovation ranks 4th of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 75 out of 100 (Trusted tier). Its score draws on 59 Google reviews averaging 4.3 out of 5.
Lupien Jean Plumbing ranks 5th of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 65 out of 100 (Good tier). Its score draws on 17 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+.
Superior Plumbing & Heating of Cornwall ranks 6th of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 63 out of 100 (Good tier). Its score draws on 74 Google reviews averaging 4.2 out of 5.
Cornwall Sewer Inspection ranks 7th of the 7 plumbers ProScore scores in Cornwall, holding a ProScore of 40 out of 100 (Basic tier). Its score draws on 1 Google review averaging 1.0 out of 5.
Of 7 plumbers in Cornwall: 2 rated Elite (81+), 2 rated Trusted (70+), and 2 rated Good (54+).
How is a plumber's ProScore calculated?
Every plumber in Cornwall is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing where it applies 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 Cornwall?
Browse all plumbers in Cornwall →What else should I check before hiring plumbers in Cornwall?
Frequently Asked Questions
Who is the best plumber in Cornwall?
Casey Mechanical Inc has the highest ProScore (81/100) among 7 plumbers in Cornwall, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing where it applies, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy plumber in Cornwall?
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 Cornwall, 2 plumbers hold Elite-tier ProScores (81+), 2 are Trusted-tier (70+), and 2 are Good-tier (54+).
Are plumbers in Cornwall licensed?
Yes, the person doing the work has to be. Plumbing is a compulsory trade in Ontario: a plumber needs a Certificate of Qualification, or must be a registered apprentice, and you can check either on the Skilled Trades Ontario public register. Of the top 7 plumbers in Cornwall by ProScore, 1 is registered with WSIB according to ProScore’s records.
How many plumbers has ProScore scored in Cornwall?
ProScore has scored 7 plumbers in Cornwall, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed October 13, 2026.
What's the ProScore distribution among plumbers in Cornwall?
Among 7 plumbers in Cornwall, Ontario: 2 are Elite-tier (81+), 2 are Trusted-tier (70+), and 2 are Good-tier (54+). The top 7 average a ProScore of 69/100, with Casey Mechanical Inc leading at 81/100.
Plumbers near Cornwall
The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.
Other trades in Cornwall
Other trades with a ProScore page in Cornwall, with the number of scored pros in each.