Jay Carter Roofing & Sheet Metal
“I was very satisfied with the product and workmanship at the time so I didn't hesitate in reaching out to them for the purchase and installation of snow guards this summer.”
Best Insulation Contractors near East Gwillimbury, ON
2 of these contractors are based in East Gwillimbury; the others serve East Gwillimbury from towns including Newmarket (10 km), Keswick (14 km) and Aurora (15 km).
8 open weekends · 14 rated 4.5+
Data verified October 16, 2026
Paragon Roofing Inc
“3 guys came and quickly repaired our roof as promised and charged same amount.”
Warner Roofing Inc.
“In the end, the roof no longer leaks, materials used were significantly better than the builders materials, the original builders incompetence was corrected and Warner Roofing came through with what I would consider to be 5-Star service.”
Above All Roofing & Exteriors
“Very pleased with the roofing instalment at my home, the workers were professional and diligent with their work.”
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The Next Level Consulting
“They were responsive both with the initial assessment and the follow up assessment and ensuring, importantly, that our claim was processed and paid.”
T. Simpson Roofing
“The even did a quick repair for free while we waited for the roof to be done.”
The 15 contractors listed for East Gwillimbury, ON insulate attics, basements, headers and crawl spaces. Details under each one about materials, hours and advertised services are copied from the company's own site; star ratings and comments come from public reviews.
Area overview: East Gwillimbury, ON
The 15 contractors on this page are rated from 4.3 to 5.0 across 807 reviews; 6 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), quality (81%) and responsiveness (81%). The topics that come up most in reviews of the contractors on this page are "estimates", "cleanliness" and "price". 8 are open on Saturdays and 5 on Sundays. The services the contractors on this page list most often on their websites are skylights (5), cedar shakes (2), flat roofing (2), metal roofing (2) and roofing insurance claims (2). Domain records put 6 websites of the contractors on this page at ten or more years old; the oldest dates from 2007. 3 offer financing or payment plans; 9 give free estimates and 4 are family- or locally-owned. We have a website on file for all 15 of the contractors on this page; 14 publish a contact page; 13 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Are all of these firms based in East Gwillimbury?
No. 2 have an address in East Gwillimbury and the rest come from other towns within 20 km. Rig and hose mean these crews cover a wide area from one yard. Ask whether your address falls inside the zone they work without a surcharge.
Georgina Roofing Ltd.
“Winter was a factor, as we had both the sheeting and shingling of the roof done, plus all the fascias, troughs, eaves were all completed very quickly with such efficient expertise and looks beautiful.”
Dilmar Roofing
“Highly professional from the first call throughout installation!”
First Choice Roofing
“First Choice Roofing showed up at 7am as promised and they were finished the job by mid afternoon.”
Reid's Roofing Ltd.
“We had a small problem with some of the caulking over the garage a couple weeks ago and after this much time, Aaron was out to fix it with no questions asked and at no charge.”
Gorilla Insulation- Spray Foam and Drywall
“They came onsite the next day and provided us with a quote that was better then all the other companies I called.”
Frank's Spray Foam Insulation
“Did a great job very thorough and careful well done.”
Brown Brother Roofing & Exterior Finishing
“Glen and his team are very knowledgeable when it comes to roofs and exterior finishing!”
TRW Foamworx
“The quality or the work as well as the communication from the company was great.”
Elaras Construction
“They are excellent and precise in their work and have the best price ، good luck”
Why these companies made our list
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