JN Roofing and Contracting
“Everyone else wanted to do a complete roof only which may be the solution for some problems but these guys are honest and will give you a proper quote.”
Best Insulation Contractors in Barrie, ON
15 contractors listed · 11 in Barrie · 6 open 24/7 · 10 open weekends · 9 rated 4.5+
Data verified October 18, 2026
D.C United Roofing
“Everyone we came in contact with during the process were both professional and courteous.”
Weaver Exterior Remodeling Windows and Doors
“Ben did the windows yesterday and today at my house and was very friendly on top of doing a great job.”
Smart Choice Installations
“Orkhan did a professional job and everything is working perfectly.”
ASJ Services Barrie
“Did a small siding job for us fast proffesional and well priced .”
Stucco Systems
“I usually have a hard time with other people working on my house, but I felt very comfortable with Mike and his team doing the work.”
The 15 contractors listed for Barrie, 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: Barrie, ON
11 of the 15 contractors we list are based in Barrie; the other 4 serve Barrie from Minesing (9 km) and Innisfil (11 km). 14 of the contractors on this page have a rating, from 4.0 to 5.0 across 831 reviews; 4 have 50 or more reviews and 9 are rated 4.5 or higher. The topics that come up most in reviews of the contractors on this page are "estimates", "quality" and "cleanliness". 6 are open around the clock; 10 are open on Saturdays and 8 on Sundays. 2 show a licence on their websites. 6 have ten or more years of experience, the longest 17 years. 6 offer emergency call-outs; 7 give free estimates; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 15 of the contractors on this page; 13 publish a contact page and 8 list a public email. 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 Barrie?
No. 11 have an address in Barrie and the rest come from other towns within 15 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.
Fire Proofing Barrie
“Their team was very quick, professional and very friendly.”
Ray Leavitt Drywall Inc.
“I've referred them to friends and family who have always been very happy with the workmanship as well.”
Roberts Air Systems
“He has all the parts, does custom work and any other contractor will go to him to get the parts anyway so you might as well skip the middle man”
Thermeco Construction Corp.
“Professional ICF installers, clean, punctual, educated, exceptional work”
Insulation Barrie
Peak Performance Roofing & Exteriors
“We had Dakota and his team come to remove and repair a crummy exterior wood "decoration" that was just a total eye sore and whenever it rained was causing leaks.”
911 Roofer
“The repairs I needed done were completed in a timely manner, and with a good sense of humour.”
Addmore Insulation
“If I am ever in the need for insulation services you will be my very first call.”
Duncan Drywall
“Rhys and his team did a great job topping up the insulation in my attic.”
Why these companies made our list
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