Integrity Roofing
“Val was super pleasant, punctual and did a fantastic job on my roof.”
Best Insulation Contractors in Lethbridge, AB
11 contractors listed · 7 in Lethbridge · 6 open weekends · 10 rated 4.5+ · 3 show a licence
Data verified October 18, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Lethbridge and several other cities.
South Peak Roofing & Exteriors
“Quote was extremely detailed, Dave pointed out some additional damage to exterior that should addressed including pictures , gave multiple options with pros and cons, very competitive pricing.”
Chase Roofing & Exteriors
“He arrived on time, was professional on the job, did good work, and cost us less than I was expecting.”
Spraytek Insulation Ltd.
“From the initial consultation to the completion of the project, the team at Spraytek demonstrated professionalism, expertise, and a genuine commitment to customer satisfaction.”
Insulation Lethbridge
“Amazing, professional service, very happy with the top up insulation in our attics!”
KCP Construction
“They have done multiple projects for us, and we are extremely happy with not only the results, but the ease of the process.”
The 11 contractors listed for Lethbridge, 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: Lethbridge, AB
7 of the 11 contractors we list are based in Lethbridge; the other 4 serve Lethbridge from Diamond City (9 km) and Coaldale (16 km). The contractors on this page are rated from 4.3 to 5.0 across 504 reviews; 2 have 50 or more reviews and 10 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), quality (89%) and responsiveness (80%). The topics that come up most in reviews of the contractors on this page are "estimates", "price" and "cleanliness". 6 are open on Saturdays and 3 on Sundays. 3 show a licence on their websites and 1 lists staff certifications (HAAG). 5 have ten or more years of experience, the longest 25 years. 1 offers financing or payment plans; 6 give free estimates and 2 are family- or locally-owned. We have a website on file for 10 of the contractors on this page; 9 publish a contact page and 6 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.
Are all of these firms based in Lethbridge?
No. 7 have an address in Lethbridge and the rest come from other towns within 20 km. Rig and hose mean these crews cover a wide area from one yard. Ask whether your address falls inside the zone they work without a surcharge.
Genuine Siding & Roofing Ltd
“They were fast, efficient and did an amazing job, plus, are two of the nicest men you will ever meet.”
Patterson Insulation Ltd.
“They arrived as promised, completed the job efficiently, and cleaned up after themselves.”
Steve's Urethane Inc
“We had our brand new house in Lethbridge insulated with spray foam done by Steve's Urethane, and we are very happy with the results!”
Martec Insulation Ltd.
“Great people hard workers good prices”
Lethbridge Roofing Co.
Why these companies made our list
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