Popular Cities
2 of these contractors are based in St. Thomas; the others serve St. Thomas from London (24 km) and Aylmer (15 km).
5 open weekends · 10 rated 4.5+ · 1 shows a licence
Data verified October 18, 2026
Listed for people planning a new house in and around St. Thomas, ON, these 15 contractors build on land you own or on lots they control. A card reflects the way that builder describes its own work, its plans and its service area; the ratings beside it come from public reviews.
The 15 contractors on this page are rated from 3.7 to 5.0 across 125 reviews; 10 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise quality (92%), professionalism (79%) and responsiveness (58%). 5 are open on Saturdays and 1 on Sundays. 1 shows a licence on its website. Domain records put 5 websites of the contractors on this page at ten or more years old; the oldest dates from 1999. 2 give free estimates and 2 are family- or locally-owned. We have a website on file for all 15 of the contractors on this page; 13 publish a contact page and 14 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
2 of these 15 builders give an address in St. Thomas; the rest sit within 25 km. Builders work by region rather than by municipal boundary, and the office address tells you little. What tells you something is whether they have built recently in the same municipality and the same ground.
