Skip to main content
Menu
Find a Contractor
PlumbersElectriciansHVACRoofersGeneral ContractorsDrywallersKitchen RemodelingBathroom RemodelingPest ControlTree ServiceLandscaping
Resources
Homeowner HubHow-To GuidesFirst 90 DaysHiring GuidesCost GuidesCompare ContractorsCoverage MapAsk ProScore AIFAQ
For Pros
Pro ResourcesClaim Your ProfileImprove Your Score
Leave a ReviewClaim Your ProfileFREE
support@proscore.ca
General Contractor Professional

JJ McGuire General Contractors logoJJ McGuire General Contractors

Oshawa, ON
Compare with similar general contractor providers in Oshawa →
+1 905-436-2554 Website(opens in new tab)
Serving Oshawa & area
ProScore
4.2★ Google|1/4 Sources

This score reflects 13 verified reviews.

How is this calculated?
Data verified: Jun 2026

About JJ McGuire General Contractors

AI-generated summary from verified data sources

JJ McGuire General Contractors provides construction and renovation services to Oshawa and nearby regions. They maintain a 4.2★ Google rating across 13 reviews.

G
Google
4.2★ (13)
Rated on 1 independent platform

Is this your business?

Claim your profile to access your Trust Score dashboard, respond to reviews, and unlock growth tools.

Claim This Profile →

What Customers Say

AI analysis of 1-2 verified Google reviews

Top Strengths

Exceptional communication with daily and monthly email updates plus direct access to project manager's personal cell phone
Polite and professional staff and trades people throughout project execution
Proactive cost-saving recommendations and transparent budget reviews
customer servicecommunicationprofessionalismcommunity involvementtransparency

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 of 4 verified
G
Google
4.2/5
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

13 total
5
10
4
0
3
1
2
0
1
2

Featured Review

Verified review from Google

“

JJ McGuire is a core company at the heart of Durham and everything Durham stands for. Not only do they have top quality customer service they also help to fundraise money on a monthly basis to support charities. I have their project manager's personal cell phone to call any time with any questions or changes. I get daily email updates, monthly email updates for the upcoming work, progress reports, budget reviews, and they even mention options to help us save costs when possible. Even their staff

D
Durham Outlook
Google Review

Other top rated general contractor in Oshawa

Level General Contracting Inc.
49
Oshawa
5(5)
Four Leaf General Contracting
42
Oshawa
4.3(16)

Homeowner Guides

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

Frequently Asked Questions

Is JJ McGuire General Contractors licensed?
Licensing status has not been verified for JJ McGuire General Contractors. Contact them directly to confirm current credentials before hiring.
Does JJ McGuire General Contractors have insurance?
WSIB insurance status is not verified for JJ McGuire General Contractors. Request proof of workplace insurance and liability coverage before hiring.
What is JJ McGuire General Contractors’s rating?
JJ McGuire General Contractors has a ProScore Trust Score of 54/100 (Good), calculated from 1 verified data source including 13 Google reviews.
Where is JJ McGuire General Contractors located?
JJ McGuire General Contractors is a general contractor serving Oshawa, Ontario. You can reach them at +1 905-436-2554. View their full profile on ProScore for verified reviews and credentials.

Business Details

880 Farewell St, Oshawa, ON L1H 6N8
General Contractor
View on Google Maps

Hours

Friday8a.m.-5p.m.
Monday8a.m.-5p.m.
SaturdayClosed
SundayClosed
Thursday8a.m.-5p.m.
Tuesday8a.m.-5p.m.
Wednesday8a.m.-5p.m.

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Services & Info

Accessibility

Wheelchair-accessible entranceWheelchair-accessible parking lot

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

Is this your business?

Claim your profile to update info, add photos, and respond to reviews

More general contractor in Oshawa →|All general contractor in Ontario →|All contractors in Oshawa →
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

Are you the owner of this business? Dispute this score

Still researching?

Read the hiring guide →Check cost estimates →

Before you hire, read: 5 questions to ask every general contractor →

Compare General Contractors in Oshawa

See how JJ McGuire General Contractors ranks against other verified general contractors in Oshawa on ProScore.

View ranked list of general contractors in Oshawa →Browse all general contractors in Oshawa →