Maksym KuzaievEver notice how your attic can turn into an icebox in winter and a sauna in summer? Yup, same here—and let’s be honest, nobody wants that kind of temperature roller coaster at home.
The good news is that a solid layer of attic insulation can change the whole vibe of your house and even chop down those pesky energy bills. But with so many insulation companies out there, it’s tough to know who really does the job right.
No worries—we’ve the ultimate scoop, so you don’t have to stress about sifting through endless options. Check out the best attic insulation providers in Ottawa here to help make your home comfortable year-round!
How much does attic insulation cost in Ottawa?
In Ottawa, attic insulation typically costs between $1,000 and $3,500, depending on the size of your attic and the type of insulation you choose. For most homes, you can expect to pay around $1 to $2.50 per square foot, with spray foam and blown-in insulation options falling in the higher end of that range.
How We Chose the Best
1. Ottawa Insulations
Address: 2838 Carp Rd.
Phone: +1 613 882 3626
Business Hours:
- Monday to Saturday – 8 AM to 6 PM
Ottawa Insulations has been doing insulation and mould removal in Ottawa for ages (25 years and counting), so you’re guaranteed their expertise.
They don’t just add new insulation and call it a day. They’ll look at your whole attic setup, run a solid inspection, and help you suss out problems you didn’t even know you had (we’re talking leaky roofs, poor ventilation, quirky bathroom fan vents, and more).
What’s really cool is their “all-in” approach—they handle sealing, ventilation, and draft proofing, so your home stays cozy and ice-dam free, while your heating bills don’t go off the rails.
We also love that they offer eco-friendly solutions and a bunch of different insulation types, whether you’re leaning towards spray foam, blown-in, or something that keeps the carbon footprint low.
Plus, previous clients we spoke with highlighted how the team explains everything in simple terms and how getting quotes and rebate info is a breeze.
If we had to nitpick, we’d say their reply is very slow. Apparently, they get busy, so dropping by at their store would be best.
Prompt service and hassle-free experience
“I had a great experience with Ottawa Insulation when having my attic insulation upgraded. Kevin responded promptly to my request for an estimate. He was pleasant, thorough, and professional when he came to inspect my attic. The quote was fair and there were no high pressure tactics or pitches to sell extra services that I did not require. When the team came to install the insulation, they were friendly and efficient. They did a great job of cleaning up after themselves. The entire process was to my satisfaction.”
Bruce K, Google Review
Skilled team with fair pricing
“They added insulation to my 25 year old attic and made the project look so easy. Knowledgeable crew, very polite and professional. I would certainly recommend them for their professionalism, expertise and most of all the reasonable price as compared to other co.panies. thank you Kevin and Zack for job well done. Nabil”
Nabil El Alami, Google Review
2. RPM Home Services
Address: 6 Antares Dr, Phase II, unit 103
Phone: +1 833 952 5387
Business Hours:
- Monday to Friday – 9 AM to 5 PM
RPM Home Services doesn’t just do insulation but really covers quote a bit, offering mould remediation and furnace and air conditioner sales and installs. This makes them your one-stop shop for home comfort upgrades.
They seem to have dialled in their attic insulation options too, handling both blown-in and cellulose, with an emphasis on only using high-quality materials that are tailored to whatever your house actually requires.
When we chatted with their team, their hands-on approach definitely made a mark on us. They’ll walk you through exactly what would work best for your home and give you honest, free assessments without making you feel pressured.
Plus, they’re totally open about financing—which is huge if you’re planning a bigger job. People who’ve hired them seem really happy, saying their crews are sharp, show up on time, stay organized throughout the process, and are all about keeping your place tidy.
The only recurring complaint is their door-to-door approach; some folks just aren’t into the extra sales talk and up-selling.
Above-and-beyond service
“Blake and Jordan from RPM home services showed up on time and a courtesy call to ensure they were. They were professional, courteous and went above and beyond. They ensured I was aware of all the steps and what their plan was to complete the service. Very knowledgable and outstanding human beings. I will 100% recommend these gentlemen and this company to anyone with insufficient insulation especially on older homes. Was able to complete my attic 1000sqft and garage attic 400spft in roughly 4.5hrs. clean, professional and smooth service.”
Christopher Coelho, Google Review
Quick and tidy installation
“It all happened very quickly. The technicians were tidy and polite. They did attic insulation improvement and we can notice how it is warmer as you go upstairs in the house. We now have 20 inches of insulation in our attic. I am sure it will improve on our electric bills in the future. I would highly recommend them.”
John Moore, Google Review
3. O’Reilly Brothers Ltd.
Address: 55 Capital Dr, Nepean
Phone: +1 613 224 1677
Business Hours:
- Monday to Friday – 8 AM to 4:30 PM
O’Reilly Brothers Ltd. has been around since 1967, and you instantly get that “these folks know what they’re doing” feeling. We were glad that all their crews are certified, safety-trained, and up-to-date on their equipment, so you’re working with total pros.
Service-wise, they cover attic insulation with a strong focus on spray foam, blown cellulose, and batt insulation.
One standout detail is that they actually source their spray foam and cellulose locally from Canadian suppliers. Plus, they’re using eco-friendly materials that are safe for pets and families.
Furthermore, they handle everything from assessment to removal and installation, which saves you from having to juggle multiple contractors or worry about cleanup.
They’re really upfront about cost and timing, too—they’ll walk you through options that actually fit your budget (and help you look into local grants).
Now, while their workmanship is rock-solid, keep in mind that you won’t get much after-service follow-up once the work is done.
Exceptionally polite and meticulous service
“Awesome experience! Matt and George came over to insulate the attic. These guys are the most polite and cleanest workers that ever came into our house. That made the world of a difference for us. Thanks a lot for that. You guys are awesome.”
Stephane Boisvert, Google Review
Highly skilled team with outstanding spray foam results
“We are so pleased. The team finished the work on schedule. Everything looks great.
We had the attic vermiculite removed, mold spray applied, ceiling drywall removed, and spray foam insulation applied.
We are particularly impressed with the spray foam team. Great work, thanks so much! Including some pictures of before, process, and after.”
Amanda Karttunen, Google Review
4. Panda Insulation
Address: 2615 Lancaster Rd, Unit 22A
Phone: +1 343 887 2632
Business Hours:
- Monday to Friday – 6 AM to 8 PM
- Saturday and Sunday – 6 AM to 5 PM
Panda Insulation made a pretty solid impression on us when we checked them out. Here, it’s not just attics that they handle; you can get basement insulation, soundproofing, and even whole-home upgrades done with them!
We heard from clients that they don’t mess around when it comes to being thorough. The crew checks in with you during the job, snaps before-and-after pics, and actually follows up weeks later to make sure you’re still happy.
But, of course, what stood out is how serious they are about air quality. All their materials are GREENGUARD Gold Certified, which we appreciate because it means less dust and cleaner air at home.
Plus, they’ll throw in advice on how to claim rebates. The warranty’s awesome too, and they’re BBB-accredited and HomeStars-verified.
If we had to nitpick, scheduling appointments could be smoother—we’ve heard cases of a few mix-ups. The good thing is that they’re quick to admit mistakes and fix things fast.
Responsive service and thorough assessment
“My husband and I were very impressed with the professional service provided by Panda. They were quick to respond to our request for an assessment and flexible in their scheduling. The assessment was thorough and they sent a detailed breakdown with their quote shortly thereafter. They worked efficiently to refill our attic insulation to code, and cleaned up when the job was finished. They were very communicative by e-mail, providing photos when they finished their work, and made payment easy. We would definitely recommend their company to friends and family!”
Chelsea Ross, Google Review
Clear communication and quality workmanship
“The Panda Insulation team did a professional job from estimation, to scheduling, to doing our attic insulation work. Their technicians explained to me what they were going to do, did the job carefully and cleanly, showed me what they had done, and Panda sent me detailed photos of the attic insulation work done. Good job!”
Parham Momtahan, Google Review
5. Insulation Ottawa – Jarrah Contracting Services
Address: 1580 Michael St.
Phone: +1 613 866 8262
Business Hours:
- Monday, Tuesday, and Friday – 8 AM to 8 PM
- Wednesday and Thursday – 8 AM to 8:30 PM
- Saturday and Sunday – 8 AM to 5 PM
Jarrah Contracting Services has a solid reputation for insulation work that really stands out once you know what to look for. If you’re looking for spray foam, batt, or blown-in insulation, insulation removals, or a total attic overhaul, they’ve got you covered.
One of the things we like best is their focus on eco-friendly options and making homes genuinely more energy efficient. Many clients we surveyed were very happy with their lower utility bills and noticeable improvements in home comfort right after the job was done!
It’s also notable how the team takes the time to discuss the process, talk about rebates and grants, and tailor the solutions to each unique property.
However, if you’re
for an instant reply, be ready for a bit of a wait since response time isn’t their strong suit. But we’ve seen that once you’re on their schedule, the follow-through, professionalism, and attention to detail are totally worth it.
Fast and skillful installation
“Jay and Manny did an excellent job installing insulation in my attic. It’s a small space to crawl around in and they managed to do just that with a long hose following them. Would highly recommend Jarrah Contracting Services. Very professional. They were done in just over 2 hours. Thank you again!”
Doris Chandler, Google Review
Thorough consultation and seamless execution
“We recently had JCS completely re-do the attic insulation in our 25+ year old home. Jay gave us several options on how to proceed, at various prices, with a good assessment of the pros and cons of each approach. Once we’d decided to go ahead, the work was done quickly, with excellent communications throughout. It was a big, messy job but Jay and his team were superb. They took care to minimize noise and disruption, finished on schedule, and cleaned up thoroughly. Very professional and personable. Highly recommend!”
Christine Trauttmansdorff, Google Review
