Cana Windows and Doors
“There was a miscommunication on our door request, but Cana offered a solution at no cost.”
Best Siding Contractors in Nepean, ON
24 companies listed · 9 in Nepean · 3 open 24/7 · 8 open weekends · 23 rated 4.5+
Data verified October 18, 2026
Roofmaster Ottawa Inc.
“The attention to detail and commitment to using high-quality materials have resulted in a roof that not only looks impressive but also provides us with confidence in its durability and performance”
Magnum Roofing
“We did three different quotes and Steven from Magnum came in best for quality ,price and service .”
Stewart Roofing Ltd.
“We had our leaking Skylight replaced with a new Skylight within three days by Joseph of Stewart Roofing.”
Burke's Sheet Metal 2007 Inc
“Friendly, helpful staff will be able to guide you through any questions you may have.”
Mentor Homes
“I vouch for knowledge and expertise and also being a great all around person that is good to do business with.”
Listed for homeowners in and around Nepean, ON, these 24 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: Nepean, ON
9 of the 24 companies we list are based in Nepean; the other 15 serve Nepean from towns including Ottawa, Carp and Gatineau, QC. The companies on this page are rated from 3.2 to 5.0 across 2,741 reviews; 19 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 professionalism (94%), quality (79%) and responsiveness (64%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "cleanliness". 3 are open around the clock and 8 are open on weekends. The services the companies on this page list most often on their websites are eavestroughs (2), inspections (2), metal roofing (2), roof repair (2) and roofing (2). 4 show a licence on their websites. Domain records put 9 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 3 offer emergency call-outs; 4 offer financing or payment plans; 18 give free estimates and 6 are family- or locally-owned. 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 many of these companies publish a website?
Websites are listed for all 24 companies on this page. Open them and look for finished houses nearby, ideally after a winter or two rather than on handover day. Close-up photographs around windows and at corners show the standard of the trim work, which is where a rushed job gives itself away first.
Monarchy Build
“The technician named Moe was very polite and accommodating to a request with an atypical configuration/installation.”
Kyi Roofing & Reno Inc.
“Please keep up the good work, I will definitely recommend you to my family and friends!”
Magenta Exterior Solutions
“Very professional and they take pride in their work”
Ottawa Eavestroughing
“After repair, we can not see the difference between the fixed part and original part.”
Jorgensen Roofing
“I've used Jorgensen Roofing for two small jobs (chimney flashing repair and to repair a leak around an attic vent which they did not originally install), and they will definitely be my first call down the line.”
JDM Roofing
“After the job was over it was so clean, almost like I didn't even get my roof done.”
Aquila Roofing and Construction Inc.
“"Aquila Roofing was the company that I hired to install my new roof, their work is impeccable, Corey ( the owner) and crew work as a team.”
Remember Me Roofing
“It's also worth mentioning that the guys took extra care in cleaning up the job site and left no trace of their work other than a repaired roof.”
Rainbow Roofing & Renovations
“They took the time to explain what they were doing and went above and beyond over the course of the four day install.”
Eco Ottawa Windows and Doors
“With the home reno market very very busy, Shane and his team at Eco Ottawa nonetheless were very responsive, able to turnaround a detailed quote and provide solid recommendations on window and door products that were both cost-effective and energy-efficient.”
Gillespie Handyman Services Inc.
“I requested a quote on a Tuesday and by Thursday the job was done perfectly!”
Red Seal Roofing Ottawa Ltd.
“Jack was incredibly professional and ensured the work was done to the highest standards, surpassing even my perfectionist expectations.”
Rob's Quality Roofing
“Rob's Quality Roofing is really reliable, extremely knowledgable and they do a really good job.”
Ottawa Roofing & Siding by Parliament Contracting
“The whole experience was very positive and I would definitely recommend this company to anyone considering replacing the shingles on the roof of their house.”
Toitures Boulet
“Special mention to Claude for his approach with customers which is very reassuring”
Toitures Cossette
“Meticulous and honest work which allowed us to save on costs without neglecting the waterproofing of the roof.”
Finelines Roofing & Renovations Ltd
“I'll not hesitate to contact FineLines for any work that I might require done in future and recommend them to my friends”
Century Roofing and Siding Ltd.
“Anthony explained all my options and the roof was installed on time.”
Why these companies made our list
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