General Contractors in London
61 general contractors in London with multi-platform trust scores.
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Who is the best general contractor in London, Ontario?
The most trusted general contractor in London, Ontario is Opal Building Co., with a ProScore of 74/100. ProScore has scored 61 general contractors in London across 10+ data sources and 20+ trust signals. 18 of the 61 are Trusted-tier (70+) or higher.
Trust scores last computed between September 2, 2026 and September 19, 2026.
Which general contractors in London score highest?
Top 30 of 61 scored general contractors in London, ranked by ProScore.
ProScore scores 61 general contractors in London, and their average score is 61 out of 100. 18 of them reach the Trusted threshold of 70 or higher. 19 are registered with WSIB and 4 are registered with HCRA. 61 have Google reviews on file — 1,057 reviews in total, and 7 carry a Better Business Bureau rating.
Opal Building Co. ranks 1st of the 61 general contractors ProScore scores in London, holding a ProScore of 74 out of 100 (Trusted tier). Its score draws on 20 Google reviews averaging 5.0 out of 5. Public records show it is registered with HCRA.
Pro Home Contracting Inc. ranks 2nd of the 61 general contractors ProScore scores in London, holding a ProScore of 74 out of 100 (Trusted tier). Its score draws on 21 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+.
CHIZLD Design & Construction ranks 3rd of the 61 general contractors ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 20 Google reviews averaging 4.9 out of 5.
Oak 42 | Home Renovations London, Ontario | Bathrooms, Kitchens, Basements, Additions ranks 4th of the 61 general contractors ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 30 Google reviews averaging 5.0 out of 5.
Practical Solutions: Renovation and Handyman Services ranks 5th of the 61 general contractors ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 39 Google reviews averaging 4.9 out of 5.
SAR group ranks 6th of the 61 general contractors ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 27 Google reviews averaging 4.9 out of 5. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
True North General Contractors Inc ranks 7th of the 61 general contractors ProScore scores in London, holding a ProScore of 73 out of 100 (Trusted tier). Its score draws on 35 Google reviews averaging 4.9 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Conrad Construction & Renovations Inc. ranks 8th of the 61 general contractors ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 10 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB and registered with HCRA. Its ProScore has risen since the previous recompute.
Coronation Construction ranks 9th of the 61 general contractors ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 36 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB.
Windy Peaks Contracting and Renovation ranks 10th of the 61 general contractors ProScore scores in London, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 22 Google reviews averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
Core Builders ranks 11th of the 61 general contractors ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 7 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB and registered with HCRA.
Skylar Group Ltd ranks 12th of the 61 general contractors ProScore scores in London, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 28 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB. Its ProScore has risen since the previous recompute.
Assorted Building Solutions Inc. ranks 13th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 20 Google reviews averaging 5.0 out of 5.
Augustine Construction ranks 14th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 24 Google reviews averaging 4.9 out of 5. Public records show it is registered with WSIB.
Davinci Contractors Group Inc. ranks 15th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 57 Google reviews averaging 4.6 out of 5.
Renown Contractors ranks 16th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 19 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.
Riverside Construction ranks 17th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 47 Google reviews averaging 4.9 out of 5.
Solid Terrain Construction ranks 18th of the 61 general contractors ProScore scores in London, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 4 Google reviews averaging 5.0 out of 5 and 12 reviews on other major review platforms.
Babylon Construction ranks 19th of the 61 general contractors ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 79 Google reviews averaging 4.9 out of 5.
Forest City Renovations ranks 20th of the 61 general contractors ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 35 Google reviews averaging 4.8 out of 5.
London Renovations Inc ranks 21st of the 61 general contractors ProScore scores in London, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 23 Google reviews averaging 4.3 out of 5. Public records show it is registered with WSIB.
Brodco Construction Ltd ranks 22nd of the 61 general contractors ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 9 Google reviews averaging 4.6 out of 5. Public records show it is registered with WSIB.
Lux Homes Design & Build ranks 23rd of the 61 general contractors ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 14 Google reviews averaging 4.6 out of 5. Public records show it is registered with WSIB.
michael + clark construction ranks 24th of the 61 general contractors ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 18 Google reviews averaging 4.6 out of 5. Public records show it is registered with WSIB.
Tradition Construction Inc. ranks 25th of the 61 general contractors ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 12 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB and registered with HCRA.
TRI-DYS Construction Inc. ranks 26th of the 61 general contractors ProScore scores in London, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 29 Google reviews averaging 5.0 out of 5.
Cardona Property Solutions ranks 27th of the 61 general contractors ProScore scores in London, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 10 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB.
Duo Building Ltd ranks 28th of the 61 general contractors ProScore scores in London, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 25 Google reviews averaging 4.5 out of 5. Public records show it is registered with WSIB.
Polaris Contracting Ltd. ranks 29th of the 61 general contractors ProScore scores in London, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 16 Google reviews averaging 5.0 out of 5.
Shamas Contracting Inc ranks 30th of the 61 general contractors ProScore scores in London, holding a ProScore of 66 out of 100 (Good tier). Its score draws on 19 Google reviews averaging 4.4 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Of 61 general contractors in London: 0 rated Elite (81+), 18 rated Trusted (70+), and 29 rated Good (54+).
How is a general contractor's ProScore calculated?
Every general contractor in London 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 London?
Browse all general contractors in London →What else should I check before hiring general contractors in London?
Frequently Asked Questions
Who is the best general contractor in London?
Opal Building Co. has the highest ProScore (74/100) among 61 general contractors in London, 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 London?
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 London, 0 general contractors hold Elite-tier ProScores (81+), 18 are Trusted-tier (70+), and 29 are Good-tier (54+).
Are general contractors in London 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 30 general contractors in London by ProScore, 0 hold verified HCRA credentials and 16 carry active WSIB coverage.
How many general contractors has ProScore scored in London?
ProScore has scored 61 general contractors in London, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between September 2, 2026 and September 19, 2026.
What's the ProScore distribution among general contractors in London?
Among 61 general contractors in London, Ontario: 0 are Elite-tier (81+), 18 are Trusted-tier (70+), and 29 are Good-tier (54+). The top 30 average a ProScore of 70/100, with Opal Building Co. leading at 74/100.