Best General Contractors in Dundas, ON

10 companies listed · 8 in Dundas · 4 open weekends · 7 rated 4.5+

Data verified October 18, 2026

All In One Landscaping Inc

All In One Landscaping Inc

4.8 70 reviews
“It's always a pleasure to deal with true experts in their field, and Lucas and the team were not only highly skilled, but also great to work with”
241 King St W
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Dundas Valley Construction

Dundas Valley Construction

4.7 21 reviews
“We will continue to use Frank for any upcoming projects and would encourage anyone to reach out to him for help with their renovation.”
19 Shirley St
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Jaxzo Electric Inc.

Jaxzo Electric Inc.

4.6 10 reviews
“I have the pleasure of working with Tony at Jaxzo Electric, and I couldn't be happier with the service he provided.”
Since 2010Family-owned
10 Martingrove Dr
i
Reveal Landscaping

Reveal Landscaping

5.0 12 reviews
“The work done was impeccable and all our friends and family loved it!”
Serves Halton, Hamilton, Niagara RegionSince 2022
Waterdown, ON · 9 km from Dundas
i
Schuit Homes Inc

Schuit Homes Inc

4.7 1 review
Since 1999
210 Old Ancaster Rd
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Detailed Buildings Ltd

Detailed Buildings Ltd

5.0 1 review
“Work was outstanding overall a great experience.”
Since 2009
624 Middletown Rd
i

Listed for homeowners in and around Dundas, ON, these 10 companies take on multi-trade work, from a basement build-out to a full renovation. What each one says about licensing, hours and the work it takes on comes from its own website; ratings and quotes come from public reviews.

Area overview: Dundas, ON

Of the 10 companies we list here, 8 are in Dundas itself and 2 come from Waterdown (9 km). 9 of the companies on this page have a rating, from 3.7 to 5.0 across 143 reviews; 1 has 50 or more reviews and 7 are rated 4.5 or higher. 4 are open on Saturdays and 1 on Sundays. Domain records put 4 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 1 is family- or locally-owned. We have a website on file for 9 of the companies on this page; 9 publish a contact page; 6 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.

Why do some of these firms sit outside Dundas?

Only 8 of the 10 companies here are based in Dundas. The rest come from other towns within 10 km. Crews travel to the work, so the office address matters less than whether they will send the same people every morning and what travel time does to the price.

Claybar Contracting Inc

Claybar Contracting Inc

3.9 4 reviews
“Claybar has always worked with me as a partner, working towards that final goal of completion.”
Since 2003
424 MacNab St
i
AVA Solutions Inc

AVA Solutions Inc

5.0 1 review
Waterdown, ON · 9 km from Dundas
i
Abacus Designs Custom Carpentry

Abacus Designs Custom Carpentry

2-yr warranty25+ yearsServes Niagara, West Lincoln, Kitchener/Waterloo
1073 Brock Rd
i
Michael L. Kelly Homes

Michael L. Kelly Homes

Serves Ancaster, Dundas +2
179 King St W
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HomeGeneral ContractorsOntarioDundas, ON

Why these companies made our list

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