Available Roofing
“Joe and his team were able to schedule me in within a couple of weeks and did a fine job of removing the stack and covering up the hole with new wood and shingles that match.”
Best Insulation Contractors in Oakville, ON
15 contractors listed · 8 in Oakville · 1 open 24/7 · 11 open weekends · 11 rated 4.5+
Data verified October 18, 2026
Fanattics
“From initial inspection, quote and job completion Richard was professional, courteous and knowledgeable.”
Everlast Roofing & Exteriors Inc.
“They're quick, they're clean, punctual, extremely knowledgeable, honest, and some of the friendlies people I've ever met.”
Halton Exteriors
“We had some eavesdrop work needed at our house and Frank and his team were fantastic to work with….”
Dome Contracting
“I would highly recommend Dome Contracting to solve any ventilation and insulation issues you may be having!”
NZ Spray Foam Insulation Inc
“From the first phone call, and site visit, they were prompt and answered all our questions, explaining the process and the products used”
The 15 contractors listed for Oakville, 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: Oakville, ON
8 of the 15 contractors we list are based in Oakville; the other 7 serve Oakville from Burlington (18 km) and Mississauga (17 km). The contractors on this page are rated from 4.3 to 5.0 across 1,535 reviews; 9 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (86%), quality (81%) and responsiveness (81%). The topics that come up most in reviews of the contractors on this page are "estimates", "cleanliness" and "price". 1 is open around the clock; 11 are open on Saturdays and 5 on Sundays. The services the contractors on this page list most often on their websites are eavestrough (3), attic insulation (2), roofing (2) and roofing services (2). 3 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 1999. 1 offers emergency call-outs; 7 give free estimates; 2 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 14 of the 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.
Inscan Contractors Inc.
“Very high standards coupled with an amazing group of people.”
Affordable Insulation & Renovation
“What a great experience, hiring this company to address insufficient insulation in our 35 year old home.”
Montenegro Aluminum
“Nathan and I discussed by challenges with my existing water flow, and he suggested add a new downspout & moved a downspout for better drainage, and added leaf guards to prevent clogs.”
Complete Roofing & Insulation
“Took 6 months to make the roofing decision (including considering 3 other estimates) and with no pressure from him or anyone on his team.”
Custom Contracting Roofing & Eavestrough Repair
“The estimate process was simple and informative and from the minute the two installers showed up till they drove away we were extremely pleased with the care taken by the installers not to damage delicate plantings on the property and the delicate care in moving yard furniture out of their way.”
Four Seasons Insulation
“I'm looking forward to them giving another great price for my brothers garage!”
Real Blue Roofing Services Inc
“Strongly recommended if you want to experience quality work and total satisfaction.”
Silicone Seals Caulking Sealing & Pest Blocking
“Efficient, professional, trustworthy and best quote in Toronto for door jamb repair.”
Complete Attic Insulation Inc
“I was incredibly impressed by the team from Complete Attic Insulation Inc that arrived at my home to winterproof my home.”
Why these companies made our list
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