Erickson Roofing
“Called with a leak on a flat roof first thing in the morning - Greg was there in an hour… patched the issue and found and fixed 2 more potential problem spots.”
Best Siding Contractors in Nanaimo, BC
14 companies listed · 11 in Nanaimo · 5 open weekends · 12 rated 4.5+
Data verified October 23, 2026
Alpineroofs.ca
“My 2 roofs were done expertly, on time and in 3 days.”
Pacific Sierra
“The project was completed ahead of schedule, and the results are flawless – our roof not only looks amazing but feels incredibly sturdy.”
Paramount Exteriors Ltd.
“I got my house renovated and these guys went above and beyond to get the work done way faster then expected.”
Ravenwood Exteriors Ltd.
“They were happy, professional, did the most fantastic job of the exterior of our house AND came in on budget post COVID, which was amazing.”
Nanaimo Roofing Co
“They were prompt, efficient, considerate and respectful…and did a great job on reshingling the roof, with attention to detail!”
Listed for homeowners in and around Nanaimo, BC, these 14 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.
Area overview: Nanaimo, BC
11 of the 14 companies we list are based in Nanaimo; the other 3 serve Nanaimo from Ladysmith (15 km) and Toronto, ON (3416 km). The companies on this page are rated from 4.0 to 5.0 across 258 reviews; 1 has 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (92%), quality (87%) and responsiveness (74%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "crew". 5 are open on Saturdays and 1 on Sundays. 6 give free estimates and 2 are family- or locally-owned. We have a website on file for 12 of the companies on this page; 11 publish a contact page; 10 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.
Are all of these companies based in Nanaimo itself?
No. 11 give an address in the city, and the rest cover it from within 3420 km. This work is scheduled well ahead, so travel is rarely the problem. Ask instead where you sit in the season, since exterior work here gets squeezed into the warm months.
On Point Roofing
“The company is professional and easy to deal with.”
Rhino Exteriors Ltd.
“They provided exceptional customer service, guiding me through the process with clarity and expertise”
DH Contracting
“I have worked with him on several projects and was amazed by his professional and expert approach.”
Hadley Exteriors
“Professional prompt service in dealing with a vinyl siding repair.”
Power's Siding
“The removal was done with speed and professionalism, the site was kept clean and free of debris and the ground around the house was raked to pick up the pieces of stucco that the ground cover tarps didn't catch”
Oceanside Roofing Ltd.
“Very professional right from the start, clear estimate, very hard working crew who cleaned up each day after they had finished.”
Blueline Exteriors Ltd.
“Great company with a professional work ethic and quality installation practices.”
Cedar Valley Roofing
Why these companies made our list
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