Panda Insulation
“Special shout out to Gilbert and Manpreet who were easy to work with and very professional”
Best Insulation Contractors in Ottawa, ON
15 contractors listed · 13 in Ottawa · 8 open weekends · 14 rated 4.5+ · 5 show a licence
Data verified October 21, 2026
Ottawa Insulations
“They invited me to take a look at the finished product then sent photos and videos if the before and after.”
Wolfenburg Roofing
“From my first interaction with John McGuire, through Dan's support as the project progressed, to the exceptional on-site team of Jeff, Zach, Jesse and George, I was genuinely impressed”
ACR Roofing Ottawa
“First, before giving an estimate they inspected all the gutters and sent pictures of what needed replacing with the estimate.”
Strukt Solutions
“The spray foam was carefully installed, everything passed inspection, and the space was left ready for the next trade.”
Bart's Rooftops
“Great work, done quickly and it's a much nicer install and product than what was originally on the roof.”
The 15 contractors listed for Ottawa, 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: Ottawa, ON
13 of the 15 contractors we list are based in Ottawa; the other 2 serve Ottawa from Gatineau, QC (7 km). The contractors on this page are rated from 4.3 to 5.0 across 2,155 reviews; 11 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), quality (78%) and value (73%). The topics that come up most in reviews of the contractors on this page are "cleanliness", "estimates" and "communication". 8 are open on Saturdays and 6 on Sundays. The services the contractors on this page list most often on their websites are attic insulation (4), insulation removal (3), residential roofing (3), floor insulation (2) and soffit & fascia (2). 5 show a licence on their websites. Domain records put 4 websites of the contractors on this page at ten or more years old; the oldest dates from 2002. 2 offer financing or payment plans; 9 give free estimates; 1 is family- or locally-owned and 4 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.
Ottawa Roofing & Siding by Parliament Contracting
“They were a pleasure to work with, from the initial stages of choosing product right through to the end of the project.”
Jarrah Contracting Services
“From the initial visit for the attic inspection, measurements for needed materials and our contractual agreement, Jay thoroughly explained the process, terms, installation date all done in a most respectful, polite manner”
Finelines Roofing & Renovations Ltd
“Mike and Dave are responsive, professional, and took great care with our home and to ensure our questions were answered and concerns were addressed.”
Metal Roof Ottawa
“Installation team was hard working (12-13 hours a day) and did an excellent job.”
Ottawa Home Exteriors
“They made the repairs and then took the time to go around to check if anything else needed attention.”
Dawson and Sons Roofing
“He also conducted a thorough assessment of the rest of the roof and completed several minor repairs, including securing shingles tabs that had been lifted by the wind and repairing an opening in a vent flange caused by raccoon damage”
Aries Contracting (Ottawa) Inc
“Despite handling large-scale jobs with professionalism and expertise, working with them still feels like dealing with a small, family-run shop—personal, responsive, and reliable.”
CPO Isolation Gatineau et Ottawa
“I would like to thank Joey Levert for taking the time to explain to me all the angles to consider regarding my situation.”
Toitures Boulet
“They represented your company exceptionally well, and I wouldn't hesitate to recommend Boulet Roofing to others.”
Why these companies made our list
What customers say about contractors in Ottawa
- “Panda Insulation gave me a fair quote and conducted the work (attic insulation) in a professional and timely manner.” — customer of Panda Insulation
- “Amazing work boys! Super clean and professional, would definitely recommend these guys to anyone looking to get spray foam or any type of insulation.” — customer of Strukt Solutions
- “Jay and Manny topped up our attic insulation and were thorough, friendly and ensured all of our concerns were addressed.” — customer of Jarrah Contracting Services
- “Had an exceptional experience with Ottawa Insulations for my attic insulation project.” — customer of Ottawa Insulations
- “We had attic insulation done. The installers Marcelo & Yousif were on time, courteous and professional.” — customer of Panda Insulation
Excerpts from public reviews of the contractors listed on this page.
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