Plumbers in Waterloo
14 plumbers in Waterloo with multi-platform trust scores.
Loading plumbers...
Who is the best plumber in Waterloo, Ontario?
The most trusted plumber in Waterloo, Ontario is Whiteway Plumbing, with a ProScore of 79/100. ProScore has scored 14 plumbers in Waterloo across 10+ data sources and 20+ trust signals. 8 of the 14 are Trusted-tier (70+) or higher.
Trust scores last computed between October 13, 2026 and October 24, 2026.
Which plumbers in Waterloo score highest?
All 14 scored plumbers in Waterloo, ranked by ProScore.
ProScore scores 14 plumbers in Waterloo, and their average score is 69 out of 100. 8 of them reach the Trusted threshold of 70 or higher. 6 are registered with WSIB and 2 hold a TSSA licence. 14 have Google reviews on file — 2,060 reviews in total, and 7 carry a Better Business Bureau rating.
Whiteway Plumbing ranks 1st of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 79 out of 100 (Trusted tier). Its score draws on 379 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A.
Dunn Heating and Air Conditioning ranks 2nd of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 78 out of 100 (Trusted tier). Its score draws on 975 Google reviews averaging 4.8 out of 5.
The Plumber's Wife ranks 3rd of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 78 out of 100 (Trusted tier). Its score draws on 50 Google reviews averaging 4.9 out of 5.
Koert Plumbing Ltd. ranks 4th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 77 out of 100 (Trusted tier). Its score draws on 128 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Transparent Backflow Services ranks 5th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 77 out of 100 (Trusted tier). Its score draws on 37 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB.
TRH Plumbing & Heating Inc ranks 6th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 76 out of 100 (Trusted tier). Its score draws on 151 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Pure Life Plumbing & Drains Inc ranks 7th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 74 out of 100 (Trusted tier). Its score draws on 237 Google reviews averaging 5.0 out of 5.
The Super Plumber - Kitchener ranks 8th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 65 Google reviews averaging 4.4 out of 5.
JRW Plumbing Inc ranks 9th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 10 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB and licensed by the TSSA.
M. Durbin Plumbing Solutions ranks 10th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 68 out of 100 (Good tier). Its score draws on 15 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.
Local Plumbing ranks 11th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 66 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+.
Tiger Plumbing ranks 12th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 55 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+.
Tiger Plumbing Inc ranks 13th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 54 out of 100 (Good tier). Its score draws on 6 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
Veitch Contracting Ltd ranks 14th of the 14 plumbers ProScore scores in Waterloo, holding a ProScore of 39 out of 100 (Basic tier). Its score draws on 3 Google reviews averaging 3.7 out of 5. Public records show it is registered with WSIB and licensed by the TSSA.
Of 14 plumbers in Waterloo: 0 rated Elite (81+), 8 rated Trusted (70+), and 5 rated Good (54+).
How is a plumber's ProScore calculated?
Every plumber in Waterloo 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 Waterloo?
Browse all plumbers in Waterloo →What else should I check before hiring plumbers in Waterloo?
Frequently Asked Questions
Who is the best plumber in Waterloo?
Whiteway Plumbing has the highest ProScore (79/100) among 14 plumbers in Waterloo, 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 Waterloo?
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 Waterloo, 0 plumbers hold Elite-tier ProScores (81+), 8 are Trusted-tier (70+), and 5 are Good-tier (54+).
Are plumbers in Waterloo 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 14 plumbers in Waterloo by ProScore, 6 are registered with WSIB according to ProScore’s records.
How many plumbers has ProScore scored in Waterloo?
ProScore has scored 14 plumbers in Waterloo, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between October 13, 2026 and October 24, 2026.
What's the ProScore distribution among plumbers in Waterloo?
Among 14 plumbers in Waterloo, Ontario: 0 are Elite-tier (81+), 8 are Trusted-tier (70+), and 5 are Good-tier (54+). The top 14 average a ProScore of 69/100, with Whiteway Plumbing leading at 79/100.
Plumbers near Waterloo
The nearest Ontario cities with a ProScore page for this trade — a pro based nearby may cover your area.
Other trades in Waterloo
Other trades with a ProScore page in Waterloo, with the number of scored pros in each.