General Contractors in Oshawa
3 general contractors in Oshawa with multi-platform trust scores.
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Who is the best general contractor in Oshawa, Ontario?
The most trusted general contractor in Oshawa, Ontario is JJ McGuire General Contractors, with a ProScore of 59/100. ProScore has scored 3 general contractors in Oshawa across 10+ data sources and 20+ trust signals. None of the 3 meet the Trusted-tier (70+) threshold yet.
Trust scores last computed September 19, 2026.
Which general contractors in Oshawa score highest?
All 3 scored general contractors in Oshawa, ranked by ProScore.
ProScore scores 3 general contractors in Oshawa, and their average score is 54 out of 100. 3 have Google reviews on file — 34 reviews in total.
JJ McGuire General Contractors ranks 1st of the 3 general contractors ProScore scores in Oshawa, holding a ProScore of 59 out of 100 (Good tier). Its score draws on 13 Google reviews averaging 4.2 out of 5.
Level General Contracting Inc. ranks 2nd of the 3 general contractors ProScore scores in Oshawa, holding a ProScore of 55 out of 100 (Good tier). Its score draws on 5 Google reviews averaging 5.0 out of 5.
Four Leaf General Contracting ranks 3rd of the 3 general contractors ProScore scores in Oshawa, holding a ProScore of 48 out of 100 (Basic tier). Its score draws on 16 Google reviews averaging 4.3 out of 5.
How is a general contractor's ProScore calculated?
Every general contractor in Oshawa is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing including HCRA and WSIB), Transparency (online presence and profile completeness), and Sentiment (AI analysis of customer reviews). The result is a ProScore from 0 to 100.
Read the full methodology →Who are the top 3 general contractors in Oshawa?
What else should I check before hiring general contractors in Oshawa?
Frequently Asked Questions
Who is the best general contractor in Oshawa?
JJ McGuire General Contractors has the highest ProScore (59/100) among 3 general contractors in Oshawa, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing (HCRA), WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy general contractor in Oshawa?
Look for general contractors with verified HCRA licensing, active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In Oshawa, 0 general contractors hold Elite-tier ProScores (81+), 0 are Trusted-tier (70+), and 2 are Good-tier (54+).
Are general contractors in Oshawa licensed?
General Contractors in Ontario are required to hold HCRA licensing. ProScore verifies this against official HCRA records for every provider in our database. Of the top 3 general contractors in Oshawa by ProScore, 0 hold verified HCRA credentials and 0 carry active WSIB coverage.
How many general contractors has ProScore scored in Oshawa?
ProScore has scored 3 general contractors in Oshawa, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed September 19, 2026.
What's the ProScore distribution among general contractors in Oshawa?
Among 3 general contractors in Oshawa, Ontario: 0 are Elite-tier (81+), 0 are Trusted-tier (70+), and 2 are Good-tier (54+). The top 3 average a ProScore of 54/100, with JJ McGuire General Contractors leading at 59/100.