Plumbers in Niagara-on-the-Lake
2 plumbers in Niagara-on-the-Lake with multi-platform trust scores.
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Who is the best plumber in Niagara-on-the-Lake, Ontario?
The most trusted plumber in Niagara-on-the-Lake, Ontario is McDowell Drain & Waterproofing, with a ProScore of 62/100. ProScore has scored 2 plumbers in Niagara-on-the-Lake across 10+ data sources and 20+ trust signals. None of the 2 meet the Trusted-tier (70+) threshold yet.
Trust scores last computed September 19, 2026.
Which plumbers in Niagara-on-the-Lake score highest?
All 2 scored plumbers in Niagara-on-the-Lake, ranked by ProScore.
ProScore scores 2 plumbers in Niagara-on-the-Lake, and their average score is 55 out of 100. 1 holds a TSSA licence. 2 have Google reviews on file — 74 reviews in total, and 2 carry a Better Business Bureau rating.
McDowell Drain & Waterproofing ranks 1st of the 2 plumbers ProScore scores in Niagara-on-the-Lake, holding a ProScore of 62 out of 100 (Good tier). Its score draws on 59 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+.
A&J Plumbing Heating ranks 2nd of the 2 plumbers ProScore scores in Niagara-on-the-Lake, holding a ProScore of 48 out of 100 (Basic tier). Its score draws on 15 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+. Public records show it is licensed by the TSSA. Its ProScore has fallen since the previous recompute.
How is a plumber's ProScore calculated?
Every plumber in Niagara-on-the-Lake 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 Niagara-on-the-Lake?
Browse all plumbers in Niagara-on-the-Lake →What else should I check before hiring plumbers in Niagara-on-the-Lake?
Frequently Asked Questions
Who is the best plumber in Niagara-on-the-Lake?
McDowell Drain & Waterproofing has the highest ProScore (62/100) among 2 plumbers in Niagara-on-the-Lake, 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 Niagara-on-the-Lake?
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 Niagara-on-the-Lake, 0 plumbers hold Elite-tier ProScores (81+), 0 are Trusted-tier (70+), and 1 is Good-tier (54+).
Are plumbers in Niagara-on-the-Lake 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 2 plumbers in Niagara-on-the-Lake by ProScore, 0 carry active WSIB coverage.
How many plumbers has ProScore scored in Niagara-on-the-Lake?
ProScore has scored 2 plumbers in Niagara-on-the-Lake, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed September 19, 2026.
What's the ProScore distribution among plumbers in Niagara-on-the-Lake?
Among 2 plumbers in Niagara-on-the-Lake, Ontario: 0 are Elite-tier (81+), 0 are Trusted-tier (70+), and 1 is Good-tier (54+). The top 2 average a ProScore of 55/100, with McDowell Drain & Waterproofing leading at 62/100.