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General Contractors in Dunnville

6 general contractors in Dunnville with multi-platform trust scores.

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Who is the best general contractor in Dunnville, Ontario?

The most trusted general contractor in Dunnville, Ontario is MXC Excavating Inc., with a ProScore of 84/100. ProScore has scored 6 general contractors in Dunnville across 10+ data sources and 20+ trust signals. 2 of the 6 are Trusted-tier (70+) or higher.

Trust scores last computed October 13, 2026.

Which general contractors in Dunnville score highest?

All 6 scored general contractors in Dunnville, ranked by ProScore.

ProScore scores 6 general contractors in Dunnville, and their average score is 61 out of 100. 2 of them reach the Trusted threshold of 70 or higher. 1 is registered with WSIB. 6 have Google reviews on file — 46 reviews in total.

1
84
Dunnville|★5.0
20 reviews

MXC Excavating Inc. ranks 1st of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 84 out of 100 (Elite tier). Its score draws on 20 Google reviews averaging 5.0 out of 5.

2
71
Dunnville|★4.8
18 reviews

Ontario Outbuilding ranks 2nd of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 71 out of 100 (Trusted tier). Its score draws on 18 Google reviews averaging 4.8 out of 5.

3
65
Dunnville|★5.0
3 reviews

Amsterdam Contracting Inc ranks 3rd of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 65 out of 100 (Good tier). Its score draws on 3 Google reviews averaging 5.0 out of 5.

4
61
Dunnville|★5.0
WSIB Verified2 reviews

Bartels Construction and Design ranks 4th of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 61 out of 100 (Good tier). Its score draws on 2 Google reviews averaging 5.0 out of 5. Public records show it is registered with WSIB.

5
47
Dunnville|★5.0
1 review

Cowan John L Ltd ranks 5th of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 47 out of 100 (Basic tier). Its score draws on 1 Google review averaging 5.0 out of 5.

6
35
Dunnville|★2.5
2 reviews

Aldor Construction ranks 6th of the 6 general contractors ProScore scores in Dunnville, holding a ProScore of 35 out of 100 (Basic tier). Its score draws on 2 Google reviews averaging 2.5 out of 5.

Of 6 general contractors in Dunnville: 1 rated Elite (81+), 1 rated Trusted (70+), and 2 rated Good (54+).

How is a general contractor's ProScore calculated?

Every general contractor in Dunnville is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing where it applies 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 →

Frequently Asked Questions

Who is the best general contractor in Dunnville?

MXC Excavating Inc. has the highest ProScore (84/100) among 6 general contractors in Dunnville, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing, including HCRA new-home builder registration where it applies, WSIB coverage, and AI-analyzed customer sentiment.

How do I find a trustworthy general contractor in Dunnville?

Look for general contractors with verified active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In Dunnville, 1 general contractor holds Elite-tier ProScores (81+), 1 is Trusted-tier (70+), and 2 are Good-tier (54+).

Are general contractors in Dunnville licensed?

Ontario has no provincial licence for renovation contractors. The HCRA licenses builders of new homes, and a renovation of an existing home typically does not call for an HCRA licence. If you are building a new home, the builder does need one; check it in the HCRA’s Ontario Builder Directory. Some cities license renovation businesses, so check with yours. The regulated work inside the job needs its own licences: an ESA-licensed electrical contractor for wiring, a TSSA-registered contractor for gas, and a certified plumber for plumbing. Ask who does each part and check their numbers. Of the top 6 general contractors in Dunnville by ProScore, 1 is registered with WSIB according to ProScore’s records.

How many general contractors has ProScore scored in Dunnville?

ProScore has scored 6 general contractors in Dunnville, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed October 13, 2026.

What's the ProScore distribution among general contractors in Dunnville?

Among 6 general contractors in Dunnville, Ontario: 1 is Elite-tier (81+), 1 is Trusted-tier (70+), and 2 are Good-tier (54+). The top 6 average a ProScore of 61/100, with MXC Excavating Inc. leading at 84/100.

Other trades in Dunnville

Other trades with a ProScore page in Dunnville, with the number of scored pros in each.

All contractors in Dunnville →