Best Bathroom Renovation Contractors in Markham, ON
20 companies listed · all 20 in Markham · 1 open 24/7 · 14 open weekends · all 20 rated 4.5+
Data verified October 18, 2026
The Renovators
Reno and Repairs
Lucky 5 Group Renovation Services
Imperial Granite & Stone Ltd.
Span-Co General Contracting Services Ltd.
Listed for homeowners in and around Markham, ON, these 20 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.

Area overview: Markham, ON
All 20 companies we list here are in Markham itself. We have 30 companies in Markham on file; this page shows the highest-rated 20. The companies on this page are rated from 4.6 to 5.0 across 578 reviews; 4 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise quality (90%), professionalism (86%) and value (77%). The topics that come up most in reviews of the companies on this page are "communication" and "cleanliness". 1 is open around the clock; 14 are open on Saturdays and 6 on Sundays. The services the companies on this page list most often on their websites are kitchen renovation (3), basement renovations (2), bathroom renovations (2) and flooring (2). 3 show a licence on their websites. 6 have ten or more years of experience, the longest 24 years. 1 offers emergency call-outs; 1 offers financing or payment plans; 8 give free estimates and 1 is family- or locally-owned. We have a website on file for all 20 of the companies on this page; 19 publish a contact page; 19 list a public email and 2 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
How much can I tell from these companies' websites?
A website is linked from all 20 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.