Plumbers in Sarnia
11 plumbers in Sarnia with multi-platform trust scores.
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Who is the best plumber in Sarnia, Ontario?
The most trusted plumber in Sarnia, Ontario is Custom Plumbing, with a ProScore of 74/100. ProScore has scored 11 plumbers in Sarnia across 10+ data sources and 20+ trust signals. 3 of the 11 are Trusted-tier (70+) or higher.
Trust scores last computed between August 30, 2026 and September 19, 2026.
Which plumbers in Sarnia score highest?
All 11 scored plumbers in Sarnia, ranked by ProScore.
ProScore scores 11 plumbers in Sarnia, and their average score is 65 out of 100. 3 of them reach the Trusted threshold of 70 or higher. 4 are registered with WSIB and 1 holds a TSSA licence. 11 have Google reviews on file — 3,867 reviews in total, and 8 carry a Better Business Bureau rating.
Custom Plumbing ranks 1st of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 74 out of 100 (Trusted tier). Its score draws on 74 Google reviews averaging 4.2 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Royalty Plumbing ranks 2nd of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 63 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A.
Reliance Home Comfort ranks 3rd of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 3,293 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+.
Handy Bros. HVAC Sarnia (AC and Furnace Repair) ranks 4th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 311 Google reviews averaging 4.9 out of 5.
Saucier Plumbing and Heating ranks 5th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 48 Google reviews averaging 4.5 out of 5 and a Better Business Bureau rating of A+.
Superior Plumbing & Heating of Sarnia ranks 6th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 20 Google reviews averaging 5.0 out of 5.
Ghost Plumbing ranks 7th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 63 out of 100 (Good tier). Its score draws on 24 Google reviews averaging 4.7 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.
Rb Plumbing ranks 8th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 61 out of 100 (Good tier). Its score draws on 12 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Its ProScore has risen since the previous recompute.
Sarnia Plumbing & Mechanical Ltd ranks 9th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 60 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 and licensed by the TSSA. Its ProScore has fallen since the previous recompute.
Pete's Plumbing ranks 10th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 58 out of 100 (Good tier). Its score draws on 6 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB.
Ainsworth ranks 11th of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 53 out of 100 (Basic tier). Its score draws on 11 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+.
Of 11 plumbers in Sarnia: 0 rated Elite (81+), 3 rated Trusted (70+), and 7 rated Good (54+).
How is a plumber's ProScore calculated?
Every plumber in Sarnia 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 Sarnia?
Browse all plumbers in Sarnia →What else should I check before hiring plumbers in Sarnia?
Frequently Asked Questions
Who is the best plumber in Sarnia?
Custom Plumbing has the highest ProScore (74/100) among 11 plumbers in Sarnia, 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 Sarnia?
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 Sarnia, 0 plumbers hold Elite-tier ProScores (81+), 3 are Trusted-tier (70+), and 7 are Good-tier (54+).
Are plumbers in Sarnia 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 11 plumbers in Sarnia by ProScore, 4 carry active WSIB coverage.
How many plumbers has ProScore scored in Sarnia?
ProScore has scored 11 plumbers in Sarnia, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between August 30, 2026 and September 19, 2026.
What's the ProScore distribution among plumbers in Sarnia?
Among 11 plumbers in Sarnia, Ontario: 0 are Elite-tier (81+), 3 are Trusted-tier (70+), and 7 are Good-tier (54+). The top 11 average a ProScore of 65/100, with Custom Plumbing leading at 74/100.