Best Roofers in St Thomas, Ontario
The most trusted roofer in St Thomas, Ontario is DB Interiors and Exteriors, with a ProScore of 72/100.
The most trusted roofer in St Thomas, Ontario is DB Interiors and Exteriors, with a ProScore of 72/100. ProScore has verified 7 roofers in St Thomas, scoring each across 10+ data sources and 20+ trust signals. 1 of the 7 are Trusted-tier (70+) or higher.
Last updated: May 6, 2026 · Data refreshed daily
Of 7 roofers in St Thomas: 0 rated Elite (82+), 1 rated Trusted (70+), and 4 rated Good (55+).
How ProScore Ranks Roofers
Every roofer in St Thomas 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 Thomas?
DB Interiors and Exteriors has the highest ProScore (72/100) among 7 verified roofers in St Thomas, 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 Thomas?
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 Thomas, 0 roofers hold Elite-tier ProScores (82+), 1 is Trusted-tier (70+), and 4 are Good-tier (55+).
Are roofers in St Thomas 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 Thomas by ProScore, 3 carry active WSIB coverage.
How many verified roofers are in St Thomas?
ProScore has verified and scored 7 roofers in St Thomas, 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 Thomas?
Among 7 verified roofers in St Thomas, Ontario: 0 are Elite-tier (82+), 1 is Trusted-tier (70+), and 4 are Good-tier (55+). The top 5 average a ProScore of 68/100, with DB Interiors and Exteriors leading at 72/100.