Bay Roofing and Exteriors Ltd.
“Very professional outfit, crew showed up on time, left no mess behind, did an outstanding job, would refer them to anyone in need of new shingles.”
Best Insulation Contractors near Sudbury, ON
1 of these contractors is based in Sudbury; the others serve Sudbury from Greater Sudbury (7 km) and Lively (10 km).
1 open weekends · 1 rated 4.5+
Data verified October 18, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Sudbury and several other cities.
Bourdon and Sons Windows & Doors -Siding-Sudbury
“Pascal and his team are very pleasant to deal with and the install seems to be of top quality.”
Strategic Roofing
“Kurt and his team were absolutely fantastic, quick and cleaned up everything.”
Thermotek Insulations
Fibron Inc
Continental Insulation
“I was very pleased with the technician (Dave) who came to do the job.”
The 6 contractors listed for Sudbury, 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: Sudbury, ON
5 of the 6 contractors on this page have a rating, from 3.8 to 4.7 across 153 reviews; 1 has 50 or more reviews and 1 is rated 4.5 or higher. 1 is open on Saturdays. 2 have ten or more years of experience, the longest 30 years. 2 offer financing or payment plans and 1 gives free estimates. We have a website on file for all 6 of the contractors on this page; 5 publish a contact page and 5 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.
How many listings here have a website?
A website is on file for all 6 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.
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
