Arcuo Interior Design Inc.
“When we contacted Arcuo Interior Design, they took their time to understand our needs, they designed the closet with the organization system of our dreams and made it reality!”
Best Bathroom Renovation Contractors in Thunder Bay, ON
9 companies listed · 5 in Thunder Bay · 2 open weekends · all 9 rated 4.5+
Data verified October 18, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Thunder Bay and several other cities.
Inspired Cabinetry & Granite
“I loved how I could share my visions and they worked with me to make it happen.”
Til-Ka Construction Inc.
“Their work was impeccable and everyone who came into our home were professional, very nice and took the stress of the situation away from us.”
Coppola Contracting
“I have been extremely impressed with the owners honesty and commitment to excellence in his work and consider him to be very professional.”
Thunder Bay Renovations
“He was on time for the job and was tidy, efficient, great at communicating and his work was outstanding.”
Direct Cabinets
Listed for homeowners in and around Thunder Bay, ON, these 9 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: Thunder Bay, ON
5 of the 9 companies we list are based in Thunder Bay; the other 4 serve Thunder Bay from Rosslyn (15 km). The companies on this page are rated from 4.8 to 5.0 across 149 reviews; 1 has 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (85%) and value (76%). 2 are open on Saturdays. 1 lists staff certifications (HAAG and IICRC). 4 have ten or more years of experience, the longest 17 years. 1 offers financing or payment plans and 1 is family- or locally-owned. We have a website on file for all 9 of the companies on this page; 8 publish a contact page and 4 list a public email. 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.
How much can I tell from these companies' websites?
A website is linked from all 9 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.
Elegant Design Inc.
“All of the people who have seen the results are amazed and impressed at the results and a couple of people have said that it doesn't even look like the same house!”
Andlin
“Very happy with the quality of work and how easy they are to work with.”
Boreal Carpentry Inc
“Would definitely reccomend for any project large or small if you care about detail and quality!”
Why these companies made our list
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