Best General Contractors in Markham, Ontario
The most trusted general contractor in Markham, Ontario is YIXIN CONSTRUCTION INC., with a ProScore of 78/100.
The most trusted general contractor in Markham, Ontario is YIXIN CONSTRUCTION INC., with a ProScore of 78/100. ProScore has verified 45 general contractors in Markham, scoring each across 10+ data sources and 20+ trust signals. 1 of the 45 are Trusted-tier (70+) or higher.
Last updated: May 6, 2026 · Data refreshed daily
Of 45 general contractors in Markham: 0 rated Elite (82+), 1 rated Trusted (70+), and 19 rated Good (55+).
How ProScore Ranks General Contractors
Every general contractor in Markham 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 →Top Rated General Contractors in Markham
Browse all general contractors in Markham →Frequently Asked Questions
Who is the best general contractor in Markham?
YIXIN CONSTRUCTION INC. has the highest ProScore (78/100) among 45 verified general contractors in Markham, 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 Markham?
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 Markham, 0 general contractors hold Elite-tier ProScores (82+), 1 is Trusted-tier (70+), and 19 are Good-tier (55+).
Are general contractors in Markham 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 5 general contractors in Markham by ProScore, 0 hold verified HCRA credentials and 4 carry active WSIB coverage.
How many verified general contractors are in Markham?
ProScore has verified and scored 45 general contractors in Markham, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Data is refreshed daily.
What's the ProScore distribution among general contractors in Markham?
Among 45 verified general contractors in Markham, Ontario: 0 are Elite-tier (82+), 1 is Trusted-tier (70+), and 19 are Good-tier (55+). The top 5 average a ProScore of 67/100, with YIXIN CONSTRUCTION INC. leading at 78/100.