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Roofer Professional

Strasser & Lang logoStrasser & Lang

Thunder Bay, ON
Compare with similar roofer providers in Thunder Bay →
Emergency ServiceWSIB
+1 807-344-0933 Website(opens in new tab)
1 Credential Verified
ProScore
4.8★ Google|1/4 Sources

This score reflects 80 verified reviews, licensed and verified.

How is this calculated?
Data verified: Jun 2026

About Strasser & Lang

AI-generated summary from verified data sources

Strasser & Lang provides roofing services to Thunder Bay and nearby regions. With a 4.8★ rating from 80 Google reviews, they are among the top-rated in their area. They are WSIB registered for your peace of mind.

G
Google
4.8★ (80)
Rated on 1 independent platform
WSIB coverage confirmed

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What Customers Say

AI analysis of 5+ verified Google reviews

Top Strengths

Exceptional speed and efficiency - multiple reviews cite completion in 5-6.5 hours with work completed ahead of schedule
Meticulous cleanup and attention to detail - consistently praised for removing drop cloths, cleaning up thoroughly, and leaving work areas pristine
Professional and courteous crew - described as respectful, polite, engaged, personable, and taking pride in their work
fast workprofessional crewexcellent cleanupreliable schedulingquality installation

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 of 4 verified
G
Google
4.8/5
B
Review Site B
Not found
B
BBB
Not found
C
Review Site C
Not found
The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.

Things to Know

Highly Rated

Consistently rated 4.8 stars across 80+ Google reviews.

WSIB Verified

Workplace Safety and Insurance Board coverage confirmed — you're protected.

Google Review Breakdown

80 total
5
72
4
5
3
0
2
0
1
3

Featured Review

Verified review from Google

“

All roofing on our house replaced - old stuff removed was 20 years old, deteriorated and with one small leak. Strasser & Lang did a great job including six new attic vents. Work looked to me fully professional, final result looks great. Courteous crew, very good worksite cleanup. Invoice was exactly as estimated. A competitor's estimate was at higher price and similar timing.<br>Note to readers: ALL roofing contractors get booked up quickly each spring, so get your arrangements made as soon as p

K
Ken McLellan
Google Review

Other top rated roofer in Thunder Bay

Triad Roofing
58
Thunder Bay
4.5(28)
Dykstra Knight Roofing & Renovations
58
Thunder Bay
4.4(32)
Reno Bros
56
Thunder Bay
4.3(12)
Elements North Roofing & Exterior Solutions
56
Thunder Bay
5(6)

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiringRoofer FAQs in Thunder BayView all guides →

Frequently Asked Questions

Is Strasser & Lang licensed?
Licensing status has not been verified for Strasser & Lang. Contact them directly to confirm current credentials before hiring.
Does Strasser & Lang have insurance?
Yes, Strasser & Lang has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.
What is Strasser & Lang’s rating?
Strasser & Lang has a ProScore Trust Score of 64/100 (Good), calculated from 1 verified data source including 80 Google reviews.
Where is Strasser & Lang located?
Strasser & Lang is a roofer serving Thunder Bay, Ontario. You can reach them at +1 807-344-0933. View their full profile on ProScore for verified reviews and credentials.

Business Details

675 Harold Crescent, Thunder Bay, ON P7C 5H5
Roofer
View on Google Maps

Hours

Friday9:30a.m.-4:30p.m.
Monday9:30a.m.-4:30p.m.
SaturdayClosed
SundayClosed
Thursday9:30a.m.-4:30p.m.
Tuesday9:30a.m.-4:30p.m.
Wednesday9:30a.m.-4:30p.m.

Services Offered

Roof repairRoof replacementShingle installationFlat roofingGutter installationRoof inspection

Services & Info

Emergency Service

Accessibility

Wheelchair-accessible entranceWheelchair-accessible parking lot

Credentials

Insurance
Not Confirmed
WSIB Coverage
✓ Confirmed

ProScore displays credential information as reported by contractors and third-party sources. Homeowners are encouraged to independently verify all credentials, licenses, and insurance prior to engaging any contractor.

Data Transparency

SourcesGoogle and Ontario regulatory records
Last updatedJune 2026

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Checked by ProScore

What is the ProScore?

The ProScore aggregates ratings from multiple review platforms into a single score from 0 to 100. Unlike platforms that show only their own reviews, the ProScore gives you the complete picture. Scores are capped for providers with limited source verification.

≥80
Elite
≥65
Trusted
≥50
Good
≥30
Basic
<30
Caution

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