Provost & Son's Roofing
“Zach and his crew were very professional and thoroughly cleaned around our house at the end of each day.”
Best Siding Contractors in Ottawa, ON
24 companies listed · all 24 in Ottawa · 4 open 24/7 · 12 open weekends · 20 rated 4.5+
Data verified October 18, 2026
JDM Roofing
“Great company, fast and reliable service, help me with issues, clean up left better then I had it”
Sky High Roofing & Siding
“When getting estimates I appreciated the package Jessica provided for us with samples of all the materials they use and how the warranty works, as well as the itemized estimate.”
Remember Me Roofing
“The level of communication was outstanding the whole way through, everyone I dealt with was super punctual, kind and friendly.”
ACR Roofing Ottawa
“Will definitely use this company again for other services they provide and recommend ACR roofing to all my friends and family in the area.”
Rainbow Roofing & Renovations
“I was told it will be done in the new year but they got it done the same week within 3 days”
Listed for homeowners in and around Ottawa, 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: Ottawa, ON
All 24 companies we list here are in Ottawa itself. We have 36 companies in Ottawa on file; this page shows the highest-rated 24. The companies on this page are rated from 3.8 to 5.0 across 2,401 reviews; 14 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (82%) and responsiveness (75%). The topics that come up most in reviews of the companies on this page are "estimates", "price" and "cleanliness". 4 are open around the clock; 12 are open on Saturdays and 11 on Sundays. The services the companies on this page list most often on their websites are roofing (4), soffit & fascia (3), eavestroughing (2), eavestroughs (2) and residential roofing (2). 3 show a licence on their websites and 1 lists staff certifications (GAF). Domain records put 12 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 5 offer emergency call-outs; 4 offer financing or payment plans; 15 give free estimates; 5 are family- or locally-owned and 2 list coupons or special offers. 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.
Red Seal Roofing Ottawa Ltd.
“I have tried other roofers but Red Seal provides the best quality and service, hands down”
Eco Ottawa Windows and Doors
“Extremely happy with the products and services from Eco Ottawa Windows and Doors!”
Gillespie Handyman Services Inc.
“I would definitely take their services in future with Gillespie and recommend to anyone who are looking for similar services.”
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.”
Finelines Roofing & Renovations Ltd
“Dave was cordial and discussed with us his findings after a thorough inspection of our roof.”
Firon Roofing
“I'm extremely pleased with their professional work which was performed on a limited timeframe, as my house was for sale.”
Metal Roof Ottawa
“The company installed our metal roof on the renoed garage perfectly, evening out an uneven roof.”
Ottawa Home Exteriors
“Kyle was responsive, he got me an estimate in a few days and his estimate was by far the most cost effective one I received.”
Vusi Roofing
“Without us asking him to do so, he even wore a mask during our conversations.”
Berube Roofing
“We have used several different roofing companies over the years, in my opinion Berube is the best.”
Rancourt Roofing
“As a retired military Officer, my expectations from a contractor are quite high and i can only praise the work of Rancourt in my case.”
Kaloozie Comfort
“Upfront pricing, quick and diligent work.”
Modern Eavestroughing Ottawa
“Roch came over to provide a quote, answered all my questions, and the work was done very quickly and professionally.”
Dawson and Sons Roofing
“You can tell his years of expereince and professionalism with the amount of detail in his explanations.”
Brady's Quality Inc.
“Well priced more than fair,honest and the owner (Justin) even made it cheaper than he quoted me through his experience and honesty.”
Ottawa Siding Ltd
“Neighbours have given many positive comments and it is our understanding that two families on the street plan to hire Ottawa Siding.”
Enhanced Exteriors Ltd
“We would highly recommend Enhanced Exteriors to everyone if you want a very professional job done at a great price.”
Meadowlands Roofing
“Because of bad weather it took longer than expected but they pushed through and got it done, and did a thorough job of cleanup after.”
Why these companies made our list
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