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General Contractor Professional

Gonneau Building Group logoGonneau Building Group

Gravenhurst, ON
Compare with similar general contractor providers in Gravenhurst →
+1 705-999-0822 Website(opens in new tab)
Serving Gravenhurst & area
ProScore

This score reflects 6 Google reviews.

How is this calculated?
Score updated: Oct 2026

About Gonneau Building Group

AI-generated summary from ProScore data sources

Gonneau Building Group is a general contractor based in Gravenhurst that handles renovations and design builds, operating weekdays with on-site parking available.

  • Gonneau Building Group: ProScore 74, tied 3rd of 12 scored general contractors in Gravenhurst.
  • 6 Google reviews (5.0 stars; median 5) for Gonneau Building Group, ahead of 7 of 12 general contractors.
Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.

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What Customers Say

AI analysis of 3 Google reviews

Top Strengths

Specialized expertise in Muskoka waterside properties and their unique challenges
Excellent execution on renovations and design builds with strong team performance
Consistent delivery of high-quality work that exceeds customer expectations
excellent work qualityMuskoka expertisewaterside propertiesteam performancerenovations

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 6 reviews
GoogleListing found
Google Business Profile reviews
5.0/5
6 reviews

No rating yet on 2 other platforms (Review platform B, Review platform C). Not found on BBB.

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.

What Reviews Highlight

Reviews mention: excellent work quality, Muskoka expertise, waterside properties.

Google Review Breakdown

6 total
5
6
4
0
3
0
2
0
1
0

Featured Review

From Google

“

I had great dealings with Eric and his team and would recommend this firm for renovations or design builds. Their knowledge of the Muskoka waterside properties and the intricacies that can be involved were first rate.

I
Ian Thomas
Google Review

Other top rated general contractor in Gravenhurst

Riverstone Contracting Co.
77
Gravenhurst
5(13)
Muskoka Beach Contracting
75
Gravenhurst
5(17)
Cameron Contracting Ltd
74
Gravenhurst
5(10)
Gradall of Muskoka
68
Gravenhurst
5(1)

More general contractors in Gravenhurst

Frequently Asked Questions

Is Gonneau Building Group licensed?
Licensing status has not been verified for Gonneau Building Group. Contact them directly to confirm current credentials before hiring.
Does Gonneau Building Group have insurance?
WSIB insurance status is not verified for Gonneau Building Group. Request proof of workplace insurance and liability coverage before hiring.
What is Gonneau Building Group’s rating?
Gonneau Building Group has a ProScore Trust Score of 74/100 (Trusted), calculated from 1 data source including 6 Google reviews.
Where is Gonneau Building Group located?
Gonneau Building Group is a general contractor serving Gravenhurst, Ontario. You can reach them at +1 705-999-0822. View their full profile on ProScore for reviews and credentials.

Business Details

205 Industrial Dr, Gravenhurst, ON P1P 1X4
General Contractor
View on Google Maps

Hours

Monday8:30a.m.-5p.m.
Tuesday8:30a.m.-5p.m.
Wednesday8:30a.m.-5p.m.
Thursday8:30a.m.-5p.m.
Friday8:30a.m.-5p.m.
SaturdayClosed
SundayClosed

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Services & Info

Onsite services

Parking

On-site parkingFree parking lot

Accessibility

Wheelchair accessible seatingWheelchair-accessible parking lot

Service options

Language assistance

Credentials

Insurance
Not Confirmed
WSIB Coverage
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 · HCRA Ontario Builder Directory

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiringGeneral Contractor FAQs in GravenhurstView 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
—
Not yet rated

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Compare General Contractors in Gravenhurst

See how Gonneau Building Group ranks against other general contractors in Gravenhurst on ProScore.

View ranked list of general contractors in Gravenhurst →

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.