Great Canadian Roofing & Siding Calgary
“Once the claim was approved by the manufacturer, Great Canadian organized the warranty shingles delivery, removal/disposal of old shingles, installation of new shingles and underlayment and clean up.”
Best Insulation Contractors in Calgary, AB
22 contractors listed · all 22 in Calgary · 7 open weekends · 20 rated 4.5+ · 4 show a licence
Data verified October 21, 2026
Lincoln Exterior Renovations
“Everyone from the office staff to the workers that came to work on my house carried themselves in a very pleasant and professional manner.”
S.i.s. Exterior Renovations
“Great job and a pleasure to work with Miera G; designer and to the gents who put it together, Eric's team.”
Whalley's Four Seasons Roofing
“Its hard trying to find quality contractors these days, but Whalley's Four Season roofing has a team of honest/salt of the earth individuals.”
Attic Rain Specialists Ltd.
“We had a great crew show up on time, they completed the work quickly and professionally.”
Tru Exteriors
“The work done is exceptional and the staff is very knowledgeable and accommodating on every request.”
The 22 contractors listed for Calgary, AB 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: Calgary, AB
All 22 contractors we list here are in Calgary itself. We have 57 contractors in Calgary on file; this page shows the highest-rated 22. The contractors on this page are rated from 4.2 to 5.0 across 2,615 reviews; 12 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (93%), quality (84%) and responsiveness (75%). The topics that come up most in reviews of the contractors on this page are "estimates", "price" and "cleanliness". 7 are open on Saturdays. The services the contractors on this page list most often on their websites are roof repair (3), roof replacement (3), commercial roofing (2), flat roofing (2) and residential roofing (2). 4 show a licence on their websites and 1 lists staff certifications (HAAG). 8 have ten or more years of experience, the longest 30 years. 1 offers emergency call-outs; 7 offer financing or payment plans; 20 give free estimates; 6 are family- or locally-owned and 1 lists coupons or special offers. We count these figures across the contractors on this page; 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 22 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.
Hubbard Roofing & Exteriors Inc.
“Stefan from Hubbard Roofing & Exteriors was able to troubleshoot and repair the source of condensation without having to replace the entire roof.”
West Quality Roofing and Exteriors
“This company has the brains, experience and brass to get the job done ✅️!”
Arctic Shield Insulation Ltd Calgary Alberta
“Already notice a difference in our homes temperature after having our insulation upgraded.”
Rush Roofing and Exteriors
“I recently had the roof of my two car garage re-shingled by the Rush Roofing group and I am glad to say that they did a fantastic job from pre-project inspection and quote to the finished product.”
United Roofing Inc.
“The reassurance of a truck pulling up behind us, guys helping us made me realise there is good people out there, i can't thank you enough United staff”
Attic Pros Insulation & Ventilation Services
“I would highly recommend these guys and I would definitely use them again should the need arise (probably not at this house but maybe another).”
Claw Roofing Specialists
“He was on my roof first thing in the morning and was able to remedy a couple issues right away when he was just there to do an estimate!”
Diamondcut Roofing
“He was able to fit us in on the first day, repaired a leak in no time!”
Hush City Soundproofing
“Hush City is very friendly and helpful, even with tricky situations and limitations in my room they managed to get everything done, I definitely recommend Hush City and will contact them in the future for sure!”
Epic Roofing & Exteriors
“When I called about the second leak they sent someone the same to day to assess the problem and get it temporarily patched up until they could come back and do the permanent work”
Alpine Exteriors
“Alpine Exteriors team worked extremely hard on what turned out to be a huge job, as there was so much debris up there from temporary "fixes" over the years.”
Asonic Roofing and Construction Ltd.
“The team put the roof on in less than two days and ensured all was cleaned up afterward.”
Western Insulations Ltd
“They do great work, very reasonable pricing, very prompt and great to deal with.”
Mega Roofing & Exteriors
“We had Hardie siding installed and are extremely pleased with the results.”
Fratello Roofing & Exteriors Ltd
“Gave us a couple options to fix our roof that was leaking and got it done in record time for us.”
Ridgecrest Developments
“They offered valuable advice and guidance throughout the entire process, helping us make informed decisions that ultimately enhanced the overall design and functionality of our house.”
Why these companies made our list
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