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24 companies listed · 20 in Hamilton · 2 open 24/7 · 18 open weekends · 23 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Hamilton, ON, these 24 companies work on exterior walls. Details about materials, colour ranges and insulation options are drawn from each company's own site, and the review quotes underneath are public reviews.
20 of the 24 companies we list are based in Hamilton; the other 4 serve Hamilton from Oakville (26 km), Stoney Creek (11 km) and Ancaster (15 km). The companies on this page are rated from 4.0 to 5.0 across 2,895 reviews; 10 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (90%), quality (89%) and responsiveness (83%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "fair". 2 are open around the clock; 18 are open on Saturdays and 10 on Sundays. The services the companies on this page list most often on their websites are eavestrough (3), attic insulation (2), commercial roofing (2), installations (2) and siding (2). 10 show a licence on their websites. Domain records put 6 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 3 offer financing; 15 give free estimates; 8 are family- or locally-owned and 3 list coupons or special offers. 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.
Websites are listed for 22 of the 24 companies on this page. Open them and look for finished houses nearby, ideally after a winter or two rather than on handover day. Close-up photographs around windows and at corners show the standard of the trim work, which is where a rushed job gives itself away first.
