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24 companies listed ยท 9 in Thornhill ยท 3 open 24/7 ยท 19 open weekends ยท 23 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Thornhill, ON, these 24 companies remodel bathrooms, including basement bathrooms and the venting problems that come with them. Each card repeats what the company says about itself on its own site, and the reviews underneath it were left by customers.
9 of the 24 companies we list are based in Thornhill; the other 15 serve Thornhill from towns including Mississauga, Toronto and Woodbridge. The companies on this page are rated from 4.0 to 5.0 across 1,359 reviews; 15 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 quality (88%), professionalism (86%) and responsiveness (74%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "efficient". 3 are open around the clock; 19 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are kitchen renovation (4), basement renovations (3), bathroom renovations (3), kitchen (3) and bathrooms (2). 3 show a licence on their websites. 7 have ten or more years of experience, the longest 17 years. 3 offer emergency call-outs; 4 offer financing or payment plans; 13 give free estimates; 1 is family- or locally-owned and 3 list coupons or special offers. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
A website is linked from 23 of the 24 listings here. Look past the finished photos for pictures taken mid-job: membrane on the walls, blocking between studs, an insulated duct heading outdoors. A company that photographs the parts nobody sees is telling you what it cares about.
