RPM @ Home Team Golden Horseshoe
“The price fit my expected budget range so that was nice and then on the decided days Quincy came and they did a great job.”
Best Insulation Contractors in Cambridge, ON
15 contractors listed · 5 in Cambridge · 2 open 24/7 · 4 open weekends · 12 rated 4.5+
Data verified October 18, 2026
Fase Two Insulation
“The team showed up on time, was diligent in work, did a fantastic job and also cleaned up properly..”
Horizon Contracting
“Jonathan and his team took care of a messy rental unit, did all the work needed, he got us back up and running on time and and budget!”
Apex Insulation Inc
“Excellent work at a good price.”
Apic Drywall
The Roofman Inc
“They were prompt, professional, and only replaced what needed to be replaced based on their professional experience, which helped to keep our costs down.”
The 15 contractors listed for Cambridge, 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: Cambridge, ON
5 of the 15 contractors we list are based in Cambridge; the other 10 serve Cambridge from Kitchener (13 km), Guelph (18 km) and Bloomingdale (17 km). 14 of the contractors on this page have a rating, from 4.0 to 5.0 across 853 reviews; 6 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (89%), quality (79%) and value (69%). The topics that come up most in reviews of the contractors on this page are "estimates", "cleanliness" and "crew". 2 are open around the clock and 4 are open on weekends. 5 have ten or more years of experience, the longest 28 years. 2 offer emergency call-outs; 2 offer financing or payment plans; 11 give free estimates; 1 is family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 15 of the contractors on this page; 14 publish a contact page; 10 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.
How many listings here have a website?
A website is on file for all 15 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.
Webcon Roofing
“I recently had my roof re done by Webcon and I was extremely pleased with the process from start to finish.”
Rick Macdonald Siding
“Within an hour of recognizing that the wrong product had arrived, they had located the right 5" siding at a factory in Burlington and scooped it up with their crew driving down to get it the next morning.”
Superior Steel Roofing Systems Inc.
“It started with the Manager putting everything in writing and the on site knowledgeable crew getting it done efficiently each day.”
LP Platinum Roofing & Exteriors
“We are very thankful and would definitely recommend them to anyone looking to have work done on their homes.”
Stevenson Insulation Inc
“Very friendly service and do an excellent job with a eye for detail”
Enerliv
“These guys are professional, knowledgable, and extremely helpful!”
Super Sprayers
“Great company and great crew, very professional.”
Strong Foam Insulation
Titanium Insulation Inc.
“Jay gave us a competitive quote and was super flexible - from the moment he came to inspect our attic to the day his team got the job done, it took us only 1 week!”
Why these companies made our list
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