Professional Roofers.
“Honestly Solid company, hard to find people who get the job done right the first time .”
Best Insulation Contractors in North York, ON
24 contractors listed · 16 in North York · 4 open 24/7 · 18 open weekends · 20 rated 4.5+
Data verified October 19, 2026
Luso Roofing & Contracting Inc.
“We hired Luso Roofing to redo our garage roof, and the service provided was excellent, very knowledgeable and professional.”
NDS Insulation Inc.
“Doing a job properly to a specification is one thing, but having polite, considerate front line people that demonstrate thoroughness right through the attention they paid to clean up makes for a winning team!”
Integrity Roofers
“After noticing a leak in the ceiling I called Shay at Integrity Roofers and they were able to send someone within a few hours.”
Available Roofing
“He gave me a fair price, and his crew were here the same afternoon to start the work, They also cleaned all my overflowing gutters and eaves troughs and repaired some fascia errors made with the previous roof installer.”
Konstruction Group Inc.
“They have a great team of workers who are insightful , hard working, and address any or every concern you may have.”
The 24 contractors listed for North York, 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: North York, ON
16 of the 24 contractors we list are based in North York; the other 8 serve North York from towns including Mississauga, York and East York. 23 of the contractors on this page have a rating, from 4.0 to 5.0 across 2,815 reviews; 11 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (89%), quality (85%) and responsiveness (85%). The topics that come up most in reviews of the contractors on this page are "estimates", "price" and "cleanliness". 4 are open around the clock; 17 are open on Saturdays and 9 on Sundays. The services the contractors on this page list most often on their websites are attic insulation (2), attic ventilation (2), leaf guard (2), roofing services (2) and spray foam insulation (2). 3 show a licence on their websites. Domain records put 8 websites of the contractors on this page at ten or more years old; the oldest dates from 2003. 4 offer emergency call-outs; 2 offer financing or payment plans; 17 give free estimates; 4 are family- or locally-owned and 4 list coupons or special offers. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
How many listings here have a website?
A website is on file for 23 of the 24 contractors here. Look for the materials they install and whether they do attics, basements or both, because plenty of crews specialize in one. Where there is no site, ask the same questions by phone before booking a visit.
Weaver Eco Home
“The Tech guys, showed up on time, did a great job, nice and neat, cleaned up and took their time showing how the heat pump works.”
Eco Spray Insulation
“I would not hesitate to use their services again or recommend them to anyone needing spray foam insulation.”
Valcast Construction
“There are many moving parts managing a renovation and they made it very easy and finished on time and on budget.”
Net-Zero Building Solutions Ltd.
“The team was clean and respectful and did a fantastic job insulating our home.”
Spray City Insulation
“I look forward to working with Spray City Insulation on future projects and would recommend them to anybody who wants quality work at a reasonable price.”
Avenue Insulation
“We're extremely happy with the work, but even more impressed with the excellent service offered by Avenue Insulation.”
Brand Insulation Inc
“These guys are proper contractors, I hired them to come insulate my semi detached house, because of lathe and plaster damage was expected in my neighbor's side.”
Spfm Spray Foam Insulation and Coatings
“It was under a very tight timeline and they worked tirelessly to ensure it was done well and on time.”
Greenvestment Inc. Home Improvement Solutions. Spray Foam
“He gave us very useful advice, and saved us money in the end.”
Applewood Roofing & Sheet Metal
“Very good company, good job on my roofing”
Tempestone Inc.
Icon Insulation
Prime Renovators
Insulpak Insulation
“*INSULPAK INSULATION* demonstrated excellent communication, competitive pricing, and high-quality work.”
Montenegro Aluminum
“Nathan and his crew just completed a fantastic job, removing rotten wooden frames around our windows n replacing them with aluminum capping.”
Alpine Roofing
“They reacted quickly with the quote, which was fair and then moved to complete the job within the time quoted, a excellent result with good attention to the clean up.”
AZ Roofing
“Darwin showed up quickly and did a thorough investigation and provided a clear and concise solution.”
Mas Air Home Comfort
“They took the time to explain their steps and what they would be working on for the day and I really appreciated the time they took a side to do so.”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
