Best Roofers in Waterloo, Ontario
The most trusted roofer in Waterloo, Ontario is William's United Roofing, with a ProScore of 66/100.
The most trusted roofer in Waterloo, Ontario is William's United Roofing, with a ProScore of 66/100. ProScore has verified 9 roofers in Waterloo, scoring each across 10+ data sources and 20+ trust signals. 1 of the 9 are Trusted-tier (65+) or higher.
Last updated: June 20, 2026 · Data refreshed daily
Of 9 roofers in Waterloo: 0 rated Elite (80+), 1 rated Trusted (65+), and 4 rated Good (50+).
How ProScore Ranks Roofers
Every roofer in Waterloo 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 →Top Rated Roofers in Waterloo
Browse all roofers in Waterloo →Frequently Asked Questions
Who is the best roofer in Waterloo?
William's United Roofing has the highest ProScore (66/100) among 9 verified roofers in Waterloo, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy roofer in Waterloo?
Look for roofers 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 roofers hold Elite-tier ProScores (80+), 1 is Trusted-tier (65+), and 4 are Good-tier (50+).
Are roofers in Waterloo licensed?
Roofers in Ontario should hold valid business registration and active WSIB workers compensation coverage. ProScore verifies these credentials for every provider. Of the top 5 roofers in Waterloo by ProScore, 3 carry active WSIB coverage.
How many verified roofers are in Waterloo?
ProScore has verified and scored 9 roofers in Waterloo, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Data is refreshed daily.
What's the ProScore distribution among roofers in Waterloo?
Among 9 verified roofers in Waterloo, Ontario: 0 are Elite-tier (80+), 1 is Trusted-tier (65+), and 4 are Good-tier (50+). The top 5 average a ProScore of 58/100, with William's United Roofing leading at 66/100.