ACR Roofing Ottawa
“We've had them back for a few jobs and we are also very satisfied with the work.”
Best Insulation Contractors near Clarence-Rockland, ON
None of these contractors is based in Clarence-Rockland; they work from towns including Ottawa (39 km), Gatineau, QC (35 km) and Bourget (6 km).
10 contractors listed · 5 open weekends · 7 rated 4.5+ · 1 shows a licence
Data verified October 21, 2026
Excel Building & Roofing Inc.
“Was always being updated on when they would have an estimate to being the work.”
Markelangelo's Inc
“I would have absolutely no hesitation in recommending Markelangelo's for any roofing or insulation related work.”
Renovaction Home Improvements Ltd
“The quality of the work was top-notch, and Luc provided unparalleled service, ensuring that we were happy with the work, and promptly responded to any questions or concerns we had.”
Paul Cuerrier Insulation Ltd
“It was a pleasure working with everyone on the team to have my insulation upgraded in parts of my house!”
Pierre Demers Insulation
“Professional, responsible, respect for the place, quality price, courtesy.”
The 10 contractors listed for Clarence-Rockland, 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: Clarence-Rockland, ON
9 of the 10 contractors on this page have a rating, from 4.0 to 5.0 across 609 reviews; 4 have 50 or more reviews and 7 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), quality (87%) and responsiveness (81%). The topics that come up most in reviews of the contractors on this page are "cleanliness", "estimates" and "price". 5 are open on Saturdays and 1 on Sundays. 1 shows a licence on its website. 3 have ten or more years of experience, the longest 18 years. 2 offer financing or payment plans; 3 give free estimates; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 10 of the contractors on this page; 9 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.
Will anyone assess the house at no charge?
No charge assessments are advertised by 3 of the 10 contractors on this page. Treat that as a sales visit with a tape measure. A paid energy evaluation is the thorough version, and in some provinces it is also the paperwork that opens the door to a rebate program.
GSL
Jarrah Contracting Services
“They went the extra mile by caulking all the windows and pointing out areas where we needed to do more work to improve our property.”
Isolation Polymax
“We had a quick and very informative inspection/estimate on the work to be done in our home.”
Isolation Gatineau Inc
“I had part of my house done with spray foam and I am satisfied with their work.”
Why these companies made our list
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