Best Roofers in St. Catharines, Ontario
The most trusted roofer in St. Catharines, Ontario is Vassa Metal Roofing, with a ProScore of 76/100.
The most trusted roofer in St. Catharines, Ontario is Vassa Metal Roofing, with a ProScore of 76/100. ProScore has verified 26 roofers in St. Catharines, scoring each across 10+ data sources and 20+ trust signals. 2 of the 26 are Trusted-tier (70+) or higher.
Last updated: May 6, 2026 · Data refreshed daily
Of 26 roofers in St. Catharines: 0 rated Elite (82+), 2 rated Trusted (70+), and 16 rated Good (55+).
How ProScore Ranks Roofers
Every roofer in St. Catharines 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 →Frequently Asked Questions
Who is the best roofer in St. Catharines?
Vassa Metal Roofing has the highest ProScore (76/100) among 26 verified roofers in St. Catharines, 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 St. Catharines?
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 St. Catharines, 0 roofers hold Elite-tier ProScores (82+), 2 are Trusted-tier (70+), and 16 are Good-tier (55+).
Are roofers in St. Catharines 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 St. Catharines by ProScore, 0 carry active WSIB coverage.
How many verified roofers are in St. Catharines?
ProScore has verified and scored 26 roofers in St. Catharines, 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 St. Catharines?
Among 26 verified roofers in St. Catharines, Ontario: 0 are Elite-tier (82+), 2 are Trusted-tier (70+), and 16 are Good-tier (55+). The top 5 average a ProScore of 70/100, with Vassa Metal Roofing leading at 76/100.