General Contractor Professional

J. Gignac Custom Construction

Thunder Bay, ON

+1 807-629-1042

Serving Thunder Bay & area

69out of 100

Good

ProScore

This score is based on publicly available data.

How is this calculated?

Score updated: Oct 2026

About J. Gignac Custom Construction

AI-generated summary from ProScore data sources

J. Gignac Custom Construction handles masonry work including brick, stone, and restoration, with recent projects in custom stone pattern design and historic brickwork restoration. Based in Thunder Bay, the business operates six days a week.

J. Gignac Custom Construction: ProScore 69, tied 10th of 32 scored general contractors in Thunder Bay.

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What Customers Say

AI analysis of 3 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 source · 4 reviews

GoogleListing found

Google Business Profile reviews

5.0/5

4 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

What Reviews Highlight

Reviews mention: attention to detail, craftsmanship, masonry expertise.

Google Review Breakdown

4 total

Featured 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

wayne and Davina walsh

Google Review

Photos & Work

1 photo

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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 69/100 (Good), calculated from 1 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 reviews and credentials.

Business Details

Thunder Bay, ON P7E 1C8

General Contractor

View on Google Maps

Hours

Monday8a.m.-10p.m.

Tuesday8a.m.-10p.m.

Wednesday8a.m.-10p.m.

Thursday8a.m.-10p.m.

Friday8a.m.-10p.m.

Saturday8a.m.-10p.m.

SundayClosed

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

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 General Contractor FAQs in Thunder Bay View all guides →

Data Transparency

Sources: Google
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

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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.