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 highest-scoring plumbers in Sarnia on ProScore are Royalty Plumbing (81/100), Reliance Home Comfort (78/100) and Custom Plumbing (77/100). ProScore has scored 11 plumbers in Sarnia across 10+ data sources and 20+ trust signals. 6 of the 11 are Trusted-tier (70+) or higher.
Star ratings alone do not separate them: 9 of the 11 average 4.5 stars or higher on Google, but only 6 reach Trusted (70+). ProScore also weighs government licensing where it applies, WSIB coverage, ratings on other platforms and what customers say in their reviews.
Trust scores last computed October 13, 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 69 out of 100. 6 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. Across Ontario, 40% of the plumbers ProScore has scored reach the Trusted threshold; at 55%, Sarnia is above the provincial rate.
Royalty Plumbing ranks 1st of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 81 out of 100 (Elite 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 is a plumber in Sarnia operating 24/7 by appointment, with wheelchair-accessible entrance and parking. The business responds quickly to urgent issues like water heater leaks and furnace failures, and staff work with customers to find workable pricing options rather than pushing a single solution.
Reliance Home Comfort ranks 2nd of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 78 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+.
The business operates weekdays from a location with on-site parking, wheelchair-accessible entrance, and accessible parking.
Custom Plumbing ranks 3rd of the 11 plumbers ProScore scores in Sarnia, holding a ProScore of 77 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.
Available around the clock for emergency calls, Handy Bros. HVAC Sarnia handles AC and furnace repair in Sarnia with on-site service and online estimates.
The ProScore for Handy Bros. HVAC Sarnia (AC and Furnace Repair) draws on 311 Google reviews averaging 4.9 out of 5.
Saucier Plumbing and Heating is a plumbing business based in Sarnia that handles repair work and accepts credit cards and tap payments.
The ProScore for Saucier Plumbing and Heating draws on 48 Google reviews averaging 4.5 out of 5 and a Better Business Bureau rating of A+.
Available 24 hours a day, seven days a week, Superior Plumbing & Heating of Sarnia handles repair work and accepts credit cards.
The ProScore for Superior Plumbing & Heating of Sarnia draws on 20 Google reviews averaging 5.0 out of 5.
The ProScore for Ghost Plumbing draws on 24 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+. Public records show Ghost Plumbing is registered with WSIB.
The ProScore for Rb Plumbing draws on 12 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
Sarnia Plumbing & Mechanical Ltd is a plumber in Sarnia that handles repair work and accepts credit card payments, operating on weekday hours.
The ProScore for Sarnia Plumbing & Mechanical Ltd draws on 5 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show Sarnia Plumbing & Mechanical Ltd is registered with WSIB and licensed by the TSSA.
The ProScore for Pete's Plumbing draws on 6 Google reviews averaging 5.0 out of 5. Public records show Pete's Plumbing is registered with WSIB.
Ainsworth is a plumber in Sarnia offering wheelchair-accessible facilities including parking and entrance.
The ProScore for Ainsworth draws on 11 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+.
How is a plumber's ProScore calculated?
Every plumber in Sarnia 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 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?
Royalty Plumbing has the highest ProScore (81/100) among 11 plumbers in Sarnia, 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 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, 1 plumber holds Elite-tier ProScores (81+), 5 are Trusted-tier (70+), and 4 are Good-tier (54+).
Are plumbers in Sarnia 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 11 plumbers in Sarnia by ProScore, 4 are registered with WSIB according to ProScore’s records.
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 October 13, 2026.
What's the ProScore distribution among plumbers in Sarnia?
Among 11 plumbers in Sarnia, Ontario: 1 is Elite-tier (81+), 5 are Trusted-tier (70+), and 4 are Good-tier (54+). Together they average a ProScore of 69/100, with Royalty Plumbing leading at 81/100.
How do plumbers in Sarnia compare with Ontario as a whole?
55% of the plumbers ProScore has scored in Sarnia reach the Trusted tier (70+), against 40% across Ontario as a whole, so Sarnia is above the provincial rate.
Plumbers near Sarnia
The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.
Other trades in Sarnia
Other trades with a ProScore page in Sarnia, with the number of scored pros in each.