General Contractor Professional

JJ McGuire General Contractors

Oshawa, ON

+1 905-436-2554 Website

Serving Oshawa & area

69out of 100

Good

ProScore

This score reflects 13 Google reviews.

How is this calculated?

Score updated: Oct 2026

About JJ McGuire General Contractors

AI-generated summary from ProScore data sources

JJ McGuire General Contractors is a general contracting business in Oshawa with wheelchair-accessible parking and entrance, open weekdays.

JJ McGuire General Contractors: ProScore 69, 1st of 3 scored general contractors in Oshawa.
13 Google reviews (4.2 stars; median 13) for JJ McGuire General Contractors, ahead of 1 of 2 general contractors.

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What Customers Say

AI analysis of 1 Google review

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 source · 13 reviews

GoogleListing found

Google Business Profile reviews

4.2/5

13 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.

Google Review Breakdown

13 total

Featured 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

Durham Outlook

Google Review

Photos & Work

1 photo

Other top rated general contractor in Oshawa

Level General Contracting Inc.

Oshawa

5(5)

Four Leaf General Contracting

Oshawa

4.3(16)

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

Business Details

880 Farewell St, Oshawa, ON L1H 6N8

General Contractor

View on Google Maps

Hours

Monday8a.m.-5p.m.

Tuesday8a.m.-5p.m.

Wednesday8a.m.-5p.m.

Thursday8a.m.-5p.m.

Friday8a.m.-5p.m.

SaturdayClosed

SundayClosed

Services Offered

Home renovationsAdditionsNew constructionProject managementPermit acquisitionDesign-build

Services & Info

Accessibility

Wheelchair-accessible entranceWheelchair-accessible parking lot

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

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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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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.