Best General Contractors in Leamington, ON
15 companies listed · 8 in Leamington · 4 open weekends · 12 rated 4.5+
Data verified October 18, 2026
Final Touch Construction
Imperium Builds
Grossi Construction & Management Ltd
Leamington Water
Ruthven Greenhouse Construction
Listed for homeowners in and around Leamington, ON, these 15 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: Leamington, ON
Of the 15 companies we list here, 8 are in Leamington itself and 7 come from Kingsville (5, 12 km), Ruthven (1, 6 km) and Cottam (1, 13 km). The companies on this page are rated from 3.7 to 5.0 across 182 reviews; 1 has 50 or more reviews and 12 are rated 4.5 or higher. 4 are open on Saturdays. 3 have ten or more years of experience, the longest 23 years. 2 give free estimates. We have a website on file for 14 of the companies on this page; 11 publish a contact page and 6 list a public email. 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.
Do any of these companies quote without charging?
The free estimate promises less on a multi-trade job, and it is advertised by 2 of the 15 companies here. Free normally buys a walk-through and a ballpark figure. A real price takes measuring, trade pricing and desk time, so design-build firms often charge for that stage and credit it against the work if you sign.
Dynamic 77 Group Inc.
RBS
GS Construction
Noah Homes
Unique Home Accents Inc.
Porrone Construction
Cobby Marine 1985 Inc.
Loesen Inc
Bayside Homes Limited
Why these companies made our list
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