Best Siding Contractors in Newmarket, ON

15 companies listed · 7 in Newmarket · 1 open 24/7 · 11 open weekends · 14 rated 4.5+

Data verified October 21, 2026

Warner Roofing Inc.

Warner Roofing Inc.

4.8 48 reviews
“I really enjoyed dealing with this company and will use them for my future roofing needs.”
Serves Aurora, Newmarket, Richmond HillFinancingPrices online
Newmarket, ON L3Y 2N8
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T. Simpson Roofing

T. Simpson Roofing

4.6 48 reviews
“Thanks to Gary Hayden he looked after my issue, and within a few days I was contacted by the office.”
Free estimates50-yr warranty24/7 emergency serviceSame-day responseSince 1992Serves Aurora, Barrie +10
200 Davis Dr
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Ontario Certified Roofing

Ontario Certified Roofing

5.0 18 reviews
“They came within days of agreeing on a fair price and left everything cleaner than when they started.”
Free consultationFamily-ownedPrices online
18580 Dufferin St
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First Choice Roofing

First Choice Roofing

5.0 24 reviews
“Steve and his great team installed a steel roof for us and did an amazing job!”
Free estimatesInsuredSince 1991Serves York RegionFamily-owned
2916 Vivian Rd
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Benjamin Moore

Benjamin Moore

3.7 27 reviews
“The guys did an amazing job remodeling our garage exterior and replacing some old windows in our house, and it looks awesome.”
Free consultationFamily-owned
515 Mulock Dr
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Gamma Roofing

Gamma Roofing

5.0 1 review
Free estimatesInsured & bonded10-yr warranty1,000+ clients servedServes GTA, Toronto +6Since 2019
960 Portminster Ct
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Listed for homeowners in and around Newmarket, ON, these 15 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: Newmarket, ON

7 of the 15 companies we list are based in Newmarket; the other 8 serve Newmarket from towns including Richmond Hill (21 km), East Gwillimbury (10 km) and Bradford (11 km). The companies on this page are rated from 3.7 to 5.0 across 782 reviews; 7 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), quality (83%) and responsiveness (80%). The topics that come up most in reviews of the companies on this page are "estimates", "price" and "cleanliness". 1 is open around the clock; 11 are open on Saturdays and 8 on Sundays. The services the companies on this page list most often on their websites are skylights (4), doors (2), eavestroughs (2), metal roofing (2) and residential roofing (2). 1 shows a licence on its website and 1 lists staff certifications (GAF). 5 have ten or more years of experience, the longest 24 years. 1 offers emergency call-outs; 4 offer financing or payment plans; 9 give free estimates and 5 are family- or locally-owned. 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 many of these companies publish a website?

Websites are listed for all 15 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.

Newmarket Roofing

Newmarket Roofing

5.0 1 review
“When they finished the crew had cleaned out our gutters and done sweeps with the magnet and got all the nails off our property.”
Free estimates25+ yearsServes Newmarket
16715 Yonge St #415
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Unique Roofing Limited

Unique Roofing Limited

5.0 50 reviews
“Had an excellent experience when I decided to change my roof with Unique roofing company.”
Free estimatesGAF-certifiedServes Toronto, Richmond Hill +5Open 24 hoursFamily-ownedVirtual consultations
Richmond Hill, ON · 21 km from Newmarket
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The Roofers

The Roofers

4.9 50 reviews
“They inspected the roof above the damp spot and applied more sealant to a potential leak.”
InsuredFinancing availableServes StouffvilleLicensed
Vaughan, ON · 24 km from Newmarket
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Aimg

Aimg

5.0 50 reviews
“Yuri was very responsive, we had to put a down payment down but only paid the last 60% (or so) until all the work was complete and we were satisfied.”
Richmond Hill, ON · 21 km from Newmarket
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Guycan Ltd

Guycan Ltd

4.7 46 reviews
“It was a high priority of the crew on site to follow full safety measures while working timely to get my roof done.”
Free consultationSince 2002
Uxbridge, ON · 28 km from Newmarket
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Dilmar Roofing

Dilmar Roofing

4.6 28 reviews
“Job was done in one day as promised and our property was left very clean.”
Free consultationSince 2007Family-ownedFinancing
Bradford, ON · 11 km from Newmarket
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Jay Carter Roofing & Sheet Metal

Jay Carter Roofing & Sheet Metal

4.5 42 reviews
“When we lost many of our shingles in a wind storm, Jay Carter Roofing was able to quickly do a temporary repair, provide a professional report on the damage, and provide a quote to get the final repairs done.”
24/7 emergency serviceServes Greater Toronto Area, Newmarket, BarrieFinancing
East Gwillimbury, ON · 10 km from Newmarket
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All Roofing Services & Skylights

All Roofing Services & Skylights

5.0 38 reviews
“I will definitely recommend them when people ask me about hiring contractors for home roof repairs.”
Free consultation
22 km from Newmarket
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Cladcan Corporation

Cladcan Corporation

4.8 24 reviews
“Their punctuality, clear communication, and transparency with clients have been exemplary, ensuring a smooth and informed process every step of the way.”
Serves Markham, Toronto +5Free consultation
North York, ON · 19 km from Newmarket
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HomeSiding ContractorsOntarioNewmarket, ON

Why these companies made our list

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