Niagara Roofmasters
“Had a wind based incident with the downspout being twisted and coming ajar; called the office and the repair was completed the next day”
Best Siding Contractors in St. Catharines, ON
16 companies listed · all 16 in St. Catharines · 3 open 24/7 · 10 open weekends · all 16 rated 4.5+
Data verified October 21, 2026
AJT Roofing and Contracting
“Adam and the team were able to show up quickly after the quote and got the job done in a timely and professional manner.”
Great Northern Home Exteriors Inc.
“We went with GNHE based on a neighbour's experience with the excellence of the installation and we were not disappointed.”
Permanent Siding & Windows
“We have used this company several times over the years and have never been disappointed with the work the final result and the service.”
JD Roofing Inc.
“Joel did a great job on a difficult repair to our cedar roof.”
Scott Windows & Doors
“Scott was very professional, reliable and prompt in helping us with our door situation.”
Listed for homeowners in and around St. Catharines, ON, these 16 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: St. Catharines, ON
All 16 companies we list here are in St. Catharines itself. We have 18 companies in St. Catharines on file; this page shows the highest-rated 16. The companies on this page are rated from 4.6 to 5.0 across 845 reviews; 7 have 50 or more reviews. The topics that come up most in reviews of the companies on this page are "price", "estimates" and "quality". 3 are open around the clock; 10 are open on Saturdays and 6 on Sundays. 1 shows a licence on its website. Domain records put 3 websites of the companies on this page at ten or more years old; the oldest dates from 2010. 5 offer emergency call-outs; 2 offer financing or payment plans; 10 give free estimates and 3 are family- or locally-owned. We have a website on file for all 16 of the companies on this page; all 16 publish a contact page; 12 list a public email and 2 take bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do listed companies quote exterior wall work for free?
No-cost estimates are advertised by 10 of the 16 companies on this page. Ask each one to quote the same specification, including whether exterior insulation is in or out, because that single choice moves the price more than the brand of cladding does and makes otherwise similar quotes look wildly apart.
Gemini Windows
“Installation of new roof was performed in a professional and courteous manner.”
R&S Roofing and Siding Inc.
“Many many thanks to Sonia and the roofers for the excellent repair work on my very steep roof.”
Skyway Roofing
“They thought it would take 2 days to do due to the size but the guys did it in 1 (full rip off of shingle, laying of plywood, water shield, drip edges and flashings and shingle lay)”
Blampin Roof Tops
“Bobby and his team did a fantastic job on replacing our house and garage shingles.”
Garden City Cedar Roofing
“Garden city Roofing is a great company, we're very happy with the job they did on our house.”
Professionail Roofing
“Tenant said they were curtious a did a great job of cleaning up .”
Metal Roofing by Hindrea
“But if for whatever reason we ever found ourselves in the market again, we would not hesitate to recommend these guys.”
Videl Roofing Inc.
“Kirby and his team are great to work with, do quality work, and are reliable and responsive from pricing through to execution.”
Vassa Metal Roofing
“With a metal roof will not have to worry about roofing for the rest of my lifetime.”
Lifetime Roofs
“100% would recommend to anyone I know.”
Why these companies made our list
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