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Kitchen Remodeling Professional

Cornerstone Construction logoCornerstone Construction

Oshawa, ON
Compare with similar kitchen remodeling providers in Oshawa →
BBB Accredited
+1 647-521-7383 Website(opens in new tab)
1 Credential VerifiedServing Oshawa & area
ProScore
4.6★ Google|3/4 Sources

This score reflects 20 verified reviews, across 3 platforms.

How is this calculated?
Data verified: Jun 2026

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.

G
Google
4.6★ (20)
B
Review Site B
Excellent
B
BBB
Excellent
Rated on 3 independent platforms

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What Customers Say

AI analysis of 1-2 verified Google reviews

Top Strengths

Provided competitive pricing compared to market range of $27K-$90K
Handled extensive full kitchen and floor tile project
Customer felt contractor was 'right' for the job after multiple consultations
kitchen remodelingfloor tilescompetitive quoteslarge renovation projectmulti-year home renovation

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

3 of 4 verified
G
Google
4.6/5
B
Review Site B
Excellent
B
BBB
Excellent
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

Well Reviewed

4.6 star average on Google with 20 reviews.

Google Review Breakdown

20 total
5
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

Other top rated kitchen remodeling in Oshawa

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4.9(48)
Paradisaic Building Group
53
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5(53)
SKL Group Home Renovations
52
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5(3)
Daylight Renos
51
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5(17)

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiringKitchen Remodeling FAQs in OshawaView all guides →

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 51/100 (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.

Business Details

804 Ritson Rd S rear unit, Oshawa, ON L1H 5L4
Kitchen Remodeling
View on Google Maps

Services Offered

Kitchen designCabinet installationCountertop installationBacksplash installationAppliance installationKitchen renovation

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, BBB, and major review platforms
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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