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General Contractor Professional

J. Gignac Custom Construction logoJ. Gignac Custom Construction

Thunder Bay, ON
Compare with similar general contractor providers in Thunder Bay →
+1 807-629-1042
Serving Thunder Bay & area
ProScore
5★ Google|1/4 Sources

This score is based on publicly available data.

How is this calculated?
Data verified: Jun 2026

About J. Gignac Custom Construction

AI-generated summary from verified data sources

J. Gignac Custom Construction provides construction and renovation services to Thunder Bay and nearby regions. Rated 5.0★ on Google with 4 reviews.

G
Google
5★ (4)
Rated on 1 independent platform

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What Customers Say

AI analysis of 3-4 verified Google reviews

Top Strengths

Meticulous attention to detail and precision in masonry work (brick, stone, and restoration)
Exceptional expertise handling complex projects like custom stone pattern design and historic brickwork restoration
Responsive communication and personable approach; guided clients on design choices
attention to detailcraftsmanshipmasonry expertisestoneworkresponsive communication

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 of 4 verified
G
Google
5/5
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

Google Review Breakdown

4 total
5
4
4
0
3
0
2
0
1
0

Featured Review

Verified review from Google

“

We are extremely happy with the stonework installation on our new house. J Gignac Construction did an excellent job. Jason was friendly, professional, very hard-working and they took great pride in their work. We picked an Arriscraft stone which was not pre-laid out from the factory. They had to design the pattern as they put the stone up. Their work is outstanding. We have received numerous compliments on the stonework on our home. We have seen J. Gignac’s work on other homes too - equal

w
wayne and Davina walsh
Google Review

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Homeowner Guides

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

Frequently Asked Questions

Is J. Gignac Custom Construction licensed?
Licensing status has not been verified for J. Gignac Custom Construction. Contact them directly to confirm current credentials before hiring.
Does J. Gignac Custom Construction have insurance?
WSIB insurance status is not verified for J. Gignac Custom Construction. Request proof of workplace insurance and liability coverage before hiring.
What is J. Gignac Custom Construction’s rating?
J. Gignac Custom Construction has a ProScore Trust Score of 54/100 (Good), calculated from 1 verified data source including 4 Google reviews.
Where is J. Gignac Custom Construction located?
J. Gignac Custom Construction is a general contractor serving Thunder Bay, Ontario. You can reach them at +1 807-629-1042. View their full profile on ProScore for verified reviews and credentials.

Business Details

Thunder Bay, ON P7E 1C8
General Contractor
View on Google Maps

Hours

Friday8a.m.-10p.m.
Monday8a.m.-10p.m.
Saturday8a.m.-10p.m.
SundayClosed
Thursday8a.m.-10p.m.
Tuesday8a.m.-10p.m.
Wednesday8a.m.-10p.m.

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Credentials

Insurance
Not Confirmed
WSIB Coverage
Not 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
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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