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 highest-scoring roofers in Thunder Bay on ProScore are Strasser & Lang (71/100), Triad Roofing (63/100) and Thunder Bay Roofing Ltd. (61/100). ProScore has scored 15 roofers in Thunder Bay across 10+ data sources and 20+ trust signals. 1 of the 15 are Trusted-tier (70+) or higher.
Star ratings alone do not separate them: 10 of the 15 average 4.5 stars or higher on Google, but only 1 reaches Trusted (70+). ProScore also weighs government licensing where it applies, WSIB coverage, ratings on other platforms and what customers say in their reviews.
Trust scores last computed between October 13, 2026 and October 26, 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 54 out of 100. 1 of them reaches the Trusted threshold of 70 or higher. 7 are registered with WSIB. 15 have Google reviews on file — 240 reviews in total, and 7 carry a Better Business Bureau rating. Across Ontario, 16% of the roofers ProScore has scored reach the Trusted threshold; at 7%, Thunder Bay is below the provincial rate.
Strasser & Lang is a roofing contractor in Thunder Bay that completes jobs in 5–6.5 hours and consistently finishes ahead of schedule.
Strasser & Lang ranks 1st of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 80 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.
Triad Roofing provides online estimates and operates on weekdays in Thunder Bay. The business has wheelchair-accessible parking and entrance, and free parking is available.
Triad Roofing ranks 2nd of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 63 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+.
Thunder Bay Roofing Ltd. operates around the clock in Thunder Bay, providing roofing services seven days a week.
Thunder Bay Roofing Ltd. ranks 3rd of the 15 roofers ProScore scores in Thunder Bay, holding a ProScore of 61 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+.
Dykstra Knight Roofing & Renovations operates on weekdays in Thunder Bay and has wheelchair-accessible parking and entrance.
The ProScore for Dykstra Knight Roofing & Renovations draws on 32 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+. Public records show Dykstra Knight Roofing & Renovations is registered with WSIB.
Elements North Roofing & Exterior Solutions is a roofing contractor based in Thunder Bay, operating on weekdays with wheelchair-accessible parking.
The ProScore for Elements North Roofing & Exterior Solutions draws on 6 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
The ProScore for Superior North Roofing Contracting draws on 27 Google reviews averaging 4.9 out of 5.
The ProScore for Top Tier Roofing draws on 9 Google reviews averaging 4.6 out of 5 and 13 reviews on other major review platforms. Public records show Top Tier Roofing is registered with WSIB.
Reno Bros is a roofing contractor based in Thunder Bay that offers online estimates and operates seven days a week, with wheelchair-accessible parking and entrance.
The ProScore for Reno Bros draws on 12 Google reviews averaging 4.3 out of 5 and a Better Business Bureau rating of A+. Public records show Reno Bros is registered with WSIB.
Cardinal Roofing & Sheet Metal Inc operates weekdays in Thunder Bay and provides wheelchair-accessible parking.
The ProScore for Cardinal Roofing & Sheet Metal Inc draws on 4 Google reviews averaging 4.0 out of 5. Public records show Cardinal Roofing & Sheet Metal Inc is registered with WSIB.
The ProScore for Blackbear Roofing draws on 1 Google review averaging 5.0 out of 5.
Northern Sheet Metal and Contracting is a roofing contractor based in Thunder Bay, Ontario that accepts debit payment and has wheelchair-accessible parking.
The ProScore for Northern Sheet Metal and Contracting draws on 3 Google reviews averaging 5.0 out of 5.
The ProScore for Lakehead Roofing & Metal Cladding Ltd. draws on 5 Google reviews averaging 3.6 out of 5 and a Better Business Bureau rating of A+. Public records show Lakehead Roofing & Metal Cladding Ltd. is registered with WSIB.
The ProScore for Racco Industrial Roofing draws on 2 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
The ProScore for Strasser & Lang Ltd draws on 1 Google review averaging 4.0 out of 5. Public records show Strasser & Lang Ltd is registered with WSIB.
The ProScore for Holmes Roofing & Sheet Metal 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 where it applies 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 (71/100) among 15 roofers in Thunder Bay, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing where it applies, 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+), 1 is Trusted-tier (70+), and 7 are Good-tier (54+).
Are roofers in Thunder Bay licensed?
Ontario has no provincial licence for roofers. Ask for proof of WSIB coverage and liability insurance, and for any business licence your municipality requires. Of the top 15 roofers in Thunder Bay by ProScore, 7 are registered with WSIB according to ProScore’s records.
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 October 13, 2026 and October 26, 2026.
What's the ProScore distribution among roofers in Thunder Bay?
Among 15 roofers in Thunder Bay, Ontario: 0 are Elite-tier (81+), 1 is Trusted-tier (70+), and 7 are Good-tier (54+). Together they average a ProScore of 54/100, with Strasser & Lang leading at 71/100.
How do roofers in Thunder Bay compare with Ontario as a whole?
7% of the roofers ProScore has scored in Thunder Bay reach the Trusted tier (70+), against 16% across Ontario as a whole, so Thunder Bay is below the provincial rate.
Other trades in Thunder Bay
Other trades with a ProScore page in Thunder Bay, with the number of scored pros in each.