Rahma Granites Quartz & Kitchen Cabinets
“I gave her our kitchen dimensions and she was able to make a mock up drawing of what everything would look like within a few days and was there to answer any additional questions we had.”
Best Bathroom Renovation Contractors in Oshawa, ON
15 companies listed · 13 in Oshawa · 1 open 24/7 · 10 open weekends · 14 rated 4.5+
Data verified October 19, 2026
Durham Flooring and Kitchen
“Bilal's work was exceptional, bringing both skill and creativity to transform my space.”
The Kitchen Place Ltd.
“She was the only one among 5 quotes who actually went downstairs to check our accessibility for electrical and structure.”
Rohan Renovation LTD
“Great price, will recommend this company and service to anyone one, thank you rohans renovations!”
Lofthouse Construction Inc.
“Jared was extremely professional and I was amazed that they did it all in the promised time frame.”
Absolute Renos
“Scott was very professional and patient, my mother and I were very picky and changed our minds many times on the style and the finish but they were highly patient with us, while also providing us with many different options.”
Listed for homeowners in and around Oshawa, ON, these 15 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: Oshawa, ON
13 of the 15 companies we list are based in Oshawa; the other 2 serve Oshawa from Whitby (8 km). The companies on this page are rated from 4.0 to 5.0 across 555 reviews; 2 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), quality (90%) and responsiveness (82%). 1 is open around the clock; 10 are open on Saturdays and 4 on Sundays. The services the companies on this page list most often on their websites are basement renovations (2), bathroom renovations (2) and kitchen renovations (2). 3 show a licence on their websites. Domain records put 2 websites of the companies on this page at ten or more years old; the oldest dates from 2002. 1 offers emergency call-outs; 8 give free estimates and 2 are family- or locally-owned. We have a website on file for 13 of the companies on this page; 12 publish a contact page; 11 list a public email and 1 takes bookings online. 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 crews work on Saturdays?
Saturday or Sunday hours show up on 10 of the 15 listings here. That often means the office answers, not that tile is going down. It matters most in a one-bathroom house, where a Saturday of curing time can pull the whole job forward by days.
Trendy Cabinetry
“Jody was extremely helpful with our kitchen reno, from design to installation, and you just can't find that kind of caring, professional, efficient service anywhere else.”
SKL Group Home Renovations
“Also fixed the fence that was broken after the big storm that passed by Whitby on May 2022”
Multi-Trade Building Services
“I would not only highly recommend them but I would honestly say they are the best company to hire for any project you may have.”
Superior Solutions Contracting
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Cornerstone Construction
“Awesome company, the owner Mike is very professional and knowledgeable in his field.”
Interior Wood Finishing
“It's clear IWF are professionals; knowledgeable about their products, efficient with installation and ensuring the client is pleased with every aspect of their work.”
New Style Granite
“He also went beyond our expectations when he repaired our leaking faucet, and a few other extra repairs, without charging extra.”
EJP Contracting
“We had our kitchen, 2 bathrooms, stairs and all our floors replaced by EJP.”
Upgrade Home Renovation
“Lilium Design & Build is a great company, from start to finish, Huseyin and his staff is lovely and produces great work.”
Why these companies made our list
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