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Wilson's Roofing
- Polite
- Work
- Quote
“Provided a detailed quote in a timely manner and was even able to accommodate our need for a fast turn around as we needed to replace our roof very urgently.”
Best Insulation Contractors in Oshawa, ON
24 contractors listed · 10 in Oshawa · 4 open 24/7 · 15 open weekends · 22 rated 4.5+
Data verified October 18, 2026
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Logik Roofing & Insulation Oshawa
- Office
- Rebate
- Questions
“Logik Roofing professionals who did a fabulous job of explaining their work, what they are doing, how much time it would take and completed the insulation work.”
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Over the Top
- Shingles
- Quote
- Business
“After trying with little success to get repair quotes, I contacted Over The Top and they got back to me right away and were able to get me a quote the same day.”
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Dryhome Roofing
- Work
- Quote
- Shingles
“The roof was replaced in 2015 but a different roofing company that didn't answer our calls when we tried calling even tho the roof was still under warranty.”
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Turnbull Roofing & Renovations Ltd
- Work
- Questions
- Business
“Steve confirmed our needs and provided great product recommendations with help from one of his gutter expert colleagues, and we were very impressed with the actual installation process.”
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Ajax Roofing Inc
“From Caleb's wonderful customer service to Ryan and his crew's professional installation, including the cleanup afterwards…this company is top notch!”
The 24 contractors listed for Oshawa, 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: Oshawa, ON
10 of the 24 contractors we list are based in Oshawa; the other 14 serve Oshawa from towns including Whitby (8 km), Ajax (16 km) and Pickering (20 km). The contractors on this page are rated from 4.3 to 5.0 across 1,698 reviews; 12 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (95%), quality (86%) and responsiveness (83%). The topics that come up most in reviews of the contractors on this page are "estimates", "price" and "cleanliness". 4 are open around the clock; 15 are open on Saturdays and 9 on Sundays. The services the contractors on this page list most often on their websites are roof repairs (4), roof inspections (3), eavestrough (2), roof installations (2) and roof replacements (2). 3 show a licence on their websites. 12 have ten or more years of experience, the longest 21 years. 5 offer emergency call-outs; 1 offers financing or payment plans; 16 give free estimates; 7 are 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 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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Berkhof's Roofing
- Warranty
- Price
- Crew
“When a leak developed in our living room ceiling after heavy and substation rainfall we called them to come take a look, assuming there was a problem with the roof.”
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The Spray Foam Guy Inc.
- Quotes
- Call
- Basement
“I was most impressed that I didn't need to check on the work he had done - he knew exactly what I was trying to achieve and did it right the first time.”
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Crowells Roofing
“Fast and easy!”
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Radom Insulation
“Quality workmanship by a couple quality brothers”
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Four Season Metal Roofing Inc.
- Team
- Project
- Quality
“Our costumers they are 100% satisfied from that we use high quality metal and all other proper materials as thick wood 1x3 and proffesional roof mebrane”
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J&J Insulation Inc
- Basement
- Home
- Spray Foam
“Great attention to detail by the two hardworking, polite employees they sent 👍👍Glenn oversaw the quoting he made it easy and his knowledge is amazing.”
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Buildingbybri Handyman & Tree Services
- Trimmed
- Property
- Projects
“Very thorough in terms of understanding requirements with a "measure twice, cut once" approach and Brian provides a good consultation before starting any project.”
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C.D. Roofing & Construction Ltd.
- Doors
- Garage
- Call
“The team at CD roofing, specifically Ryan T, was there to guide us through the process, answering all of our questions to make us comfortable along the way.”
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Hvac Ontario
- Water Tank
- Job
- Heat Pump
“He is very knowledgeable and professional in his line of work and also, he followed up on the work to ensure that I was satisfied and that everything was done right.”
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360 Roof
- Color
- Word
- Happy
“Every step of the process was easy and straightforward and the work was completed in a very timely manner with thorough clean up and disposal afterwards.”
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Windmill Roofing & Exteriors
- Shingles
- Leak
- Work
“It can be stressful discovering a leak in your roof especially during heavy rains, but there was no fuss or drama, just a reassuring, pleasant, and personable gentleman.”
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Norris Roofing
- Soffits
- Quote
- Work
“High winds removed a couple of shingles lately, they were out immediately to repair the issue, prompt, friendly and did it in no time, very reliable, EXCELLENT service.”
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Home Doctor
- Eavestrough
- Business
- Quote
“From start to finish he was easy to get a hold of, he was very professional, and provided us with proper quotes making it easy to see how our money was going to be used.”
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Eastern Eavestroughing
- Quote
- Soffits
- Price
“First time about 8 years ago in the house where we used to live for just eavetroughs and now, in our new place, for the fascia, soffits and eavetroughs.”
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Limestone Construction and Excavating
- Business
- Team
- Attention
“When they pulled out of our driveway, our new roof looked terrific, the site had been completely cleaned and we were completely satisfied with the work.”
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Doucette B W Roofing
- Wind
- Quote
“Greg was straightforward in explaining the work involved, offered a reasonable quote, and prepared an itemized contract with clear steps which his crew followed to a tee.”
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Stevens Insulation Services
- Fair
- Home
- Team
“I had thought about doing the insulation upgrade myself but after seeing Glenn's quote, it would take them maybe 2 hours and it would take us an entire day.”
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Universal Roofs
- Happy
- Roof Repair
- Team
“The replacement of the roof was done very well by them and I am very pleased with the results.”
Insulation Services in Oshawa, ON Cost Estimates
Minimum cost
$679
Maximum cost
$4966
National Average
$2328
Avg Per Hour Rates
$94
$1460
$3360
Typical price range is based on 353 cost profiles
Why these companies made our list
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