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Hazforce Environmental Ltd
- Drywall
- Hazardous Material
- Insulation
“The final bill matched the quote, we did end doing some extra items but cost was explained to us up front and what was quoted was billed at the same cost.”
Best Insulation Contractors in Duncan, BC
24 contractors listed · 5 in Duncan · 3 open 24/7 · 13 open weekends · 19 rated 4.5+
Data verified October 18, 2026
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High Definition Roofing Ltd. Duncan
- Leak
- Torch
- Choice
“After a recent large rainfall we discovered our new home had a roof leak, we called around in a panic as first time home owners to multiple local roofing companies , High Definition was the quickest to respond, they sent Harrison out the same day wh...”
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PW McCallum Roofing
- Price
- Questions
- Quality
“After researching and receiving four different quotes, McCallum Roofing not only came out as the most competitively priced but also delivered a top-notch service that exceeded our expectations.”
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RGH Construction
- Fence
“Very impressed with the beautiful and artistic style fence just completed by RGH Construction.”
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Duncan Insulation
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CE Spray Foam Solutions Inc.
- Job
- Project
- Companies
“WALLTITE is GREENGUARD Children & Schools SM certified for indoor air quality, exceeds the requirements of the National Building Code of Canada, and are the only products available on the market today that have successfully met the polyurethane durab...”
The 24 contractors listed for Duncan, BC 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: Duncan, BC
5 of the 24 contractors we list are based in Duncan; the other 19 serve Duncan from towns including Victoria (46 km), Nanaimo (46 km) and Shawnigan Lake (16 km). 21 of the contractors on this page have a rating, from 3.9 to 5.0 across 688 reviews; 5 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (89%), responsiveness (83%) and quality (81%). The topics that come up most in reviews of the contractors on this page are "communication", "estimates" and "price". 3 are open around the clock; 12 are open on Saturdays and 6 on Sundays. The services the contractors on this page list most often on their websites are spray foam insulation (3), attic insulation (2) and fireproofing (2). 4 have ten or more years of experience, the longest 17 years. 2 offer financing; 15 give free estimates; 5 are 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 23 of the 24 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.
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BC Green Roof Victoria
“And his work ethic and follow through are way beyond what anyone could expect.”
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Insulation Ladysmith
“Thankfully the Insulation Ladysmith staff understood what was needed and helped with the removal of the old and installed the newer attic insulation.”
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Alpine Insulation
- Estimate
- Invoice
- Phone Calls
“They cleaned up after themselves and let us know that their foreman would send us the invoice and we could then get the application for the grant in the works.”
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Shoreline Roofing & Exteriors
- Metal Roof
- Confidence
- Owner
“Their pricing was good, management of the project was spot on, attention to all detail very good, quality of their crews excellent and very professional.”
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Alpineroofs.ca
- Business
- Weather
- Crew
“Where other companies I contacted about installing our new roof left with me questions and doubts, Kelly at Alpine, as well as lead roofer Mike, gained and fully justified my confidence from beginning to end -- with personal, professional engagement;...”
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RR Roof Rider Ltd
- Winter
- Photos
- Questions
“I found them very thorough both with their estimate for different kinds of roofing, their recommendation on colours to allow for greater longevity of ashphalt shingles, and they were equally thorough, approachable, and friendly on the site!”
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Steel City Drywall Ltd.
- Results
- Budget
- Company
“When I expressed my disappointment with the lack of transparency on their end with payment options I was just told “sorry for that but I would've told you if you asked” I didn't think I needed to ask, I've worked with A LOT of trades and I've never c...”
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Victoria Roofing Co. Ltd.
- Job
- Home
- Priced
“From the very start, Rob was very friendly and informative and also very thorough and patient with all my questions on several phone calls, back and forth over quite a period of time before they actually began work on our house.”
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Ecotek Spray Foam Ltd
- Job
- Ceiling
- Walls
“I had the ecotek team come in and spray the ceiling and walls of the tiny house and building they did a fabulous job with a tough project not only is it sealed well I think it actually added structural integrity to the building would definitely use t...”
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Top Fill Insulation Ltd.
- Project
- Renovation
- Inspection
“They were professional, friendly, knowledgeable, clear and communicative and discussed the best solutions to trickier areas for installing insulation and vapor-barrier in the space.”
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Ecolofty Green Insulation
- Communication
- Energy
- Attic
“I'd done a lot of research on insulation prior to contacting Ecolofty and knew what I wanted in order to improve the efficiency of our home energy use.”
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Van Island Insulation
- Attic
“They spent awhile removing everything that was damaged in the attic and made sure that it was dry before installing our new insulation.”
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C & C Insulation Inc.
“They showed up on time stayed a couple late-nights to make sure the job was able to be finished on time for the next crew to start on time.”
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Pro Pacific Hazmat
- Photos
- Insulation
- Inspection
“From initial consultation thru to having the job finished this is a top notch company.”
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West Coast Industrial Insulation Ltd
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North Victoria Insulation
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Happy Home Insulation
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Canuck Roofing Ltd.
- Communication
- Happy
- Quote
“Canuck Roofing replaced an old tar&gravel roof of our apartment building in New Westminster with new sloped insulation, new torchon membrane, drains, vents, fascia siding, etc.”
Insulation Services in Duncan, BC Cost Estimates
Minimum cost
$669
Maximum cost
$4890
National Average
$2292
Avg Per Hour Rates
$92
$1438
$3309
Fair price range is based on 459 cost profiles
Why these companies made our list
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