Best Roofers in London, Ontario
The most trusted roofer in London, Ontario is Gold Level Contracting, with a ProScore of 82/100.
The most trusted roofer in London, Ontario is Gold Level Contracting, with a ProScore of 82/100. ProScore has verified 50 roofers in London, scoring each across 10+ data sources and 20+ trust signals. 5 of the 50 are Trusted-tier (65+) or higher.
Last updated: June 20, 2026 · Data refreshed daily
Of 50 roofers in London: 1 rated Elite (80+), 5 rated Trusted (65+), and 23 rated Good (50+).
How ProScore Ranks Roofers
Every roofer in London 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 London?
Gold Level Contracting has the highest ProScore (82/100) among 50 verified roofers in London, 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 London?
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 London, 1 roofer holds Elite-tier ProScores (80+), 5 are Trusted-tier (65+), and 23 are Good-tier (50+).
Are roofers in London 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 London by ProScore, 2 carry active WSIB coverage.
How many verified roofers are in London?
ProScore has verified and scored 50 roofers in London, 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 London?
Among 50 verified roofers in London, Ontario: 1 is Elite-tier (80+), 5 are Trusted-tier (65+), and 23 are Good-tier (50+). The top 5 average a ProScore of 70/100, with Gold Level Contracting leading at 82/100.