Roofer Professional

Strasser & Lang

Thunder Bay, ON

Emergency ServiceWSIB

+1 807-344-0933 Website

1 Credential Verified

71out of 100

Trusted

ProScore

This score reflects 80 Google reviews, WSIB coverage confirmed.

How is this calculated?

Score updated: Oct 2026

About Strasser & Lang

AI-generated summary from ProScore data sources

Strasser & Lang is a roofing contractor in Thunder Bay that completes jobs in 5–6.5 hours and consistently finishes ahead of schedule. The crew is known for thorough cleanup, meticulous attention to detail, and professional, courteous service.

Strasser & Lang: ProScore 71, 1st of 15 scored roofers in Thunder Bay.
80 Google reviews (4.8 stars; median 6) for Strasser & Lang, ahead of 15 of 15 roofers.

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What Customers Say

AI analysis of 10 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 source · 80 reviews

GoogleListing found

Google Business Profile reviews

4.8/5

80 reviews

Not found on 3 other platforms ProScore checks (Review platform B, BBB, Review platform C).

ProScore aggregates Google, the BBB and other major review platforms. Some sources are not named publicly.

How sources are weighted: ProScore methodology.

Things to Know

Trusted Level

Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.

Highly Rated

Consistently rated 4.8 stars across 80 Google reviews.

WSIB Verified

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

What Reviews Highlight

Reviews mention: fast work, professional crew, excellent cleanup.

Google Review Breakdown

80 total

Featured 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

Ken McLellan

Google Review

Photos & Work

1 photo

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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 71/100 (Trusted), calculated from 1 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 reviews and credentials.

Business Details

675 Harold Crescent, Thunder Bay, ON P7C 5H5

Roofer

View on Google Maps

Hours

Monday9:30a.m.-4:30p.m.

Tuesday9:30a.m.-4:30p.m.

Wednesday9:30a.m.-4:30p.m.

Thursday9:30a.m.-4:30p.m.

Friday9:30a.m.-4:30p.m.

SaturdayClosed

SundayClosed

Services Offered

Roof repairRoof replacementShingle installationFlat roofingGutter installationRoof inspection

Services & Info

Emergency Service

Accessibility

Wheelchair-accessible entranceWheelchair-accessible parking lot

Credentials

Insurance

Not Confirmed

Credentials are as reported by contractors and public sources — verify each with the contractor and the issuing authority before hiring.Check it yourself: WSIB clearance

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiring Roofer FAQs in Thunder Bay View all guides →

Data Transparency

Sources: Google and Ontario regulatory records
Score computed: October 13, 2026

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Checked by ProScore

What is the ProScore?

One score from 0 to 100 across every review platform and public registry ProScore checks. How the ProScore works

≥81

Elite

≥70

Trusted

≥54

Good

≥30

Basic

<30

Caution

—

Not yet rated

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Compare Roofers in Thunder Bay

See how Strasser & Lang ranks against other roofers in Thunder Bay on ProScore.

View ranked list of roofers in Thunder Bay →

A ProScore is informational only — not a guarantee, endorsement, or recommendation — and the data behind it may be incomplete or out of date. Before hiring, independently verify all credentials, including licences, insurance (including WSIB) and references, directly with the contractor and the issuing authority. Full data notice. Something wrong? Let us know.