The Roofman Inc
“The roofer did that in short order and then took the initiative to caulk a good number of nails that had popped up.”
Best Insulation Contractors in Kitchener, ON
15 contractors listed · 9 in Kitchener · 3 open weekends · 13 rated 4.5+
Data verified October 18, 2026
North Guard Roofing
“They were very timely, showed up exactly when they said they would (this was an urgent job for us), and completed our repair work efficiently and very cost effectively.”
National Mold Removal
“I couldn't be more impressed with how clean they left the basement after they were done”
Rick Macdonald Siding
“Jenn was very communicative about when our installation would be scheduled, who would be completing the work and was a pleasure to interact with”
Enerliv Insulation
“They helped our team with insulation services and some spray foam and it has really made a difference with our projects.”
Stevenson Insulation Inc
“I was happy with the pricing and end result that I had them back to spray foam my crawl space.”
The 15 contractors listed for Kitchener, 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: Kitchener, ON
9 of the 15 contractors we list are based in Kitchener; the other 6 serve Kitchener from Waterloo (6 km), Cambridge (13 km) and Woolwich (16 km). The contractors on this page are rated from 4.1 to 5.0 across 1,697 reviews; 8 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (78%) and responsiveness (63%). The topics that come up most in reviews of the contractors on this page are "estimates", "cleanliness" and "price". 3 are open on Saturdays and 1 on Sundays. The services the contractors on this page list most often on their websites are attic insulation (2), insulation removal (2) and spray foam insulation (2). 1 lists staff certifications (IICRC). 3 have ten or more years of experience, the longest 28 years. 1 offers financing or payment plans; 7 give free estimates; 1 is family- or locally-owned and 2 list coupons or special offers. 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.
Titanium Insulation Inc.
“I would highly recommend them for your next renovation, full build or upgraded to your existing home or business.”
Strong Foam Insulation
Golden Gate Spray Foam & Fire Proofing
“They explained the whole process, finished on time, and the difference in our home's temperature was immediate”
RPM @ Home Team Golden Horseshoe
“First its Mathew who made the introduction, then it's Mickey who made things possible and then came Abdul and his partner who did all the magical things and worked so much hard to make customers happy.”
R M W Exteriors Inc
“I recently had the pleasure of working with Kevin and Johan from RMW for an exterior renovation project, and I couldn't be more impressed with their craftsmanship and attention to detail.”
Reitzel Insulation
“Reitzel finished our attic insulation neatly and got the rebate handled properly”
Reuter Roofing
“They not only moved all of the deck furniture so it wouldn't get damaged but they also placed tarps between our home and the neighbors to catch anything extra that fell”
LP Platinum Roofing & Exteriors
“The first time I spoke with Lucas he was very informative and took the time to help me understand the process, especially because I wasn't fluent with everything in the roofing world.”
Horizon Contracting
“The crew that came out to install our patio did a wonderful job and left our property pristine.”
Why these companies made our list
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