Roofers in Thunder Bay
15 roofers in Thunder Bay with multi-platform trust scores.
Loading roofers...
Who is the best roofer in Thunder Bay, Ontario?
The most trusted roofer in Thunder Bay, Ontario is Strasser & Lang, with a ProScore of 64/100. ProScore has scored 15 roofers in Thunder Bay across 10+ data sources and 20+ trust signals. None of the 15 meet the Trusted-tier (70+) threshold yet.
Trust scores last computed between August 30, 2026 and September 19, 2026.
Which roofers in Thunder Bay score highest?
All 15 scored roofers in Thunder Bay, ranked by ProScore.
ProScore scores 15 roofers in Thunder Bay, and their average score is 52 out of 100. 7 are registered with WSIB. 15 have Google reviews on file — 240 reviews in total, and 7 carry a Better Business Bureau rating.
Strasser & Lang ranks 1st of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 64 out of 100 (Good tier). Its score draws on 80 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.
Dykstra Knight Roofing & Renovations ranks 2nd of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 58 out of 100 (Good tier). Its score draws on 32 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Triad Roofing ranks 3rd of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 58 out of 100 (Good tier). Its score draws on 28 Google reviews averaging 4.5 out of 5 and a Better Business Bureau rating of A+.
Elements North Roofing & Exterior Solutions ranks 4th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 56 out of 100 (Good tier). Its score draws on 6 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Its ProScore has risen since the previous recompute.
Reno Bros ranks 5th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 56 out of 100 (Good tier). Its score draws on 12 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Thunder Bay Roofing Ltd. ranks 6th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 55 out of 100 (Good tier). Its score draws on 29 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Its ProScore has risen since the previous recompute.
Superior North Roofing Contracting ranks 7th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 53 out of 100 (Basic tier). Its score draws on 27 Google reviews averaging 4.9 out of 5.
Top Tier Roofing ranks 8th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 53 out of 100 (Basic tier). Its score draws on 9 Google reviews averaging 4.6 out of 5 and 13 reviews on other major review platforms. Public records show it is registered with WSIB.
Cardinal Roofing & Sheet Metal Inc ranks 9th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 51 out of 100 (Basic tier). Its score draws on 4 Google reviews averaging 4.0 out of 5. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Lakehead Roofing & Metal Cladding Ltd. ranks 10th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 48 out of 100 (Basic tier). Its score draws on 5 Google reviews averaging 3.6 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Blackbear Roofing ranks 11th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 47 out of 100 (Basic tier). Its score draws on 1 Google review averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
Northern Sheet Metal and Contracting ranks 12th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 46 out of 100 (Basic tier). Its score draws on 3 Google reviews averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
Racco Industrial Roofing ranks 13th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 45 out of 100 (Basic tier). Its score draws on 2 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Its ProScore has risen since the previous recompute.
Strasser & Lang Ltd ranks 14th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 43 out of 100 (Basic tier). Its score draws on 1 Google review averaging 4.0 out of 5. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Holmes Roofing & Sheet Metal ranks 15th of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 42 out of 100 (Basic tier). Its score draws on 1 Google review averaging 5.0 out of 5.
How is a roofer's ProScore calculated?
Every roofer in Thunder Bay 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 roofers in Thunder Bay?
Browse all roofers in Thunder Bay →What else should I check before hiring roofers in Thunder Bay?
Frequently Asked Questions
Who is the best roofer in Thunder Bay?
Strasser & Lang has the highest ProScore (64/100) among 15 roofers in Thunder Bay, 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 Thunder Bay?
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 Thunder Bay, 0 roofers hold Elite-tier ProScores (81+), 0 are Trusted-tier (70+), and 6 are Good-tier (54+).
Are roofers in Thunder Bay 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 15 roofers in Thunder Bay by ProScore, 7 carry active WSIB coverage.
How many roofers has ProScore scored in Thunder Bay?
ProScore has scored 15 roofers in Thunder Bay, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between August 30, 2026 and September 19, 2026.
What's the ProScore distribution among roofers in Thunder Bay?
Among 15 roofers in Thunder Bay, Ontario: 0 are Elite-tier (81+), 0 are Trusted-tier (70+), and 6 are Good-tier (54+). The top 15 average a ProScore of 52/100, with Strasser & Lang leading at 64/100.