Kitchen Remodeling Professional
Cornerstone Construction
Oshawa, ON
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Verified Listing1 Credential VerifiedServing Oshawa & area
0out of 100
ProScore
+24 over 1 mo
4.6★ Google|3/4 Sources
This score reflects 20 verified reviews, across 3 platforms.
How is this calculated?About Cornerstone Construction
AI-generated summary from verified data sources
Cornerstone Construction is a kitchen remodeling contractor serving Oshawa and surrounding communities. Their 4.6★ Google rating is backed by 20 customer reviews, 5.0/5 stars on another review platform, and BBB accredited with an A+ rating.
Google
4.6★ (20)
Review Site B
Excellent
BBB
Excellent
Rated on 3 independent platforms
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Ratings Across Platforms
Aggregated from independent sources. Only ProScore shows all.
G
Google
4.6/5
H
Review Site B
Excellent
B
BBB
Excellent
T
Review Site C
The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.
Things to Know
Well Reviewed
4.6 star average on Google with 20 reviews.
Google Review Breakdown
20 total5
18
4
0
3
0
2
0
1
2
Featured Review
Verified review from Google
“
REVIEW OF PROJECT: 1021 I have been renovating my home in small sections over the past 4 years. The most extensive and expensive was to be the full kitchen and new floor tiles starting from the front doors all throughout the first floor. It was a project I had quoted several times over the years with different contractors but none of them felt right, not to mention the wild quotes ranging from $27K to $90K. I am now in the winter of 2024/2025. And the newly inaugurated orange clown to the sout
J
Jolette Samuel
Google Review
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Frequently Asked Questions
Is Cornerstone Construction licensed?
Licensing status has not been verified for Cornerstone Construction. Contact them directly to confirm current credentials before hiring.
Does Cornerstone Construction have insurance?
WSIB insurance status is not verified for Cornerstone Construction. Request proof of workplace insurance and liability coverage before hiring.
What is Cornerstone Construction’s rating?
Cornerstone Construction has a ProScore Trust Score of 64/100 (Good), calculated from 3 verified data sources including 20 Google reviews.
Where is Cornerstone Construction located?
Cornerstone Construction is a kitchen remodeling serving Oshawa, Ontario. You can reach them at +1 647-521-7383. View their full profile on ProScore for verified reviews and credentials.
Data Transparency
SourcesGoogle, multiple verified platforms
Last updated2026-05-06
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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.
≥82
Elite
≥70
Trusted
≥55
Good
≥30
Basic
<30
Caution
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