Live Green Inc
“I would absolutely hire them again for future jobs if the need arises.”
Best Insulation Contractors in Raleigh, NC
21 contractors listed · all 21 in Raleigh · 3 open 24/7 · 5 open weekends · 20 rated 4.5+
Data verified October 21, 2026
Stetten Home Services
“He came in and moved HVAC pipes to allow for easier movement within the space and then laid flooring to give additional storage space including shelving.”
Roofwerks
“Excellent customer service is extremely rare these days, so knowing that I have the best roof warranty available and that I can call on them anytime in the future, gives me great peace of mind!”
Baker Roofing Company
“They had been amongst 5 companies we had give us quotes on our roof replacement, but they were the only ones who actually went on top of our roof to see the condition.”
Service Experts Heating & Air Conditioning
“They clearly explained the intended work, and made sure our expectations were aligned.”
Camden Roofing & Construction LLC
“Trent did a fantastic job guiding us through the process of repairing and replacing our leaking skylight.”
The 21 contractors listed for Raleigh, NC insulate attics, walls, crawl spaces and rim joists. Details under each one about materials, hours and the services advertised are copied from the company's own site; star ratings and comments come from public reviews.
Area overview: Raleigh, NC
All 21 contractors we list here are in Raleigh itself. The contractors on this page are rated from 4.0 to 5.0 across 5,798 reviews; 10 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise responsiveness (92%), quality (91%) and professionalism (87%). The topics that come up most in reviews of the contractors on this page are "crew", "price" and "estimates". 3 are open around the clock; 5 are open on Saturdays and 3 on Sundays. 4 show a license on their websites; 1 lists staff certifications (BPI) and 9 have a BBB rating of A or A+. Domain records put 18 websites of the contractors on this page at ten or more years old; the oldest dates from 1998. 3 offer emergency call-outs; 4 offer financing or payment plans; 9 give free estimates; 4 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 21 of the contractors on this page; 18 publish a contact page; 8 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
Will anyone assess the house at no charge?
No charge assessments are advertised by 9 of the 21 contractors on this page. A free look usually means someone measures the attic and writes a proposal. A paid energy audit with a blower door and a camera is a different product and tells you far more about where your house is leaking.
Triangle Radiant Barrier & Crawl Space Encapsulation
“The whole team was quick, professional, and very informative, walking me through every step of my crawlspace renovation.”
Roof Dawgs
“They also replaced my fascia board that was damaged and even offered to paint the facia to match if I still had the original paint color.”
Fan Man Inc.
“I felt that the pricing was more than fair and when they came to install they were very neat and cleaned up any mess that was made.”
Carolina Weatherization
“Although they did not perform the original waterproofing, they were available to replace the dehumidifier in my crawlspace in a timely and professional matter.”
McCarthy Metal Roofing
“If you're in the market for a really nice metal roof, you owe yourself a visit.”
Boatwright Insulation Co Inc
“Great place to go to, they treat you like family, it's a go to place for your insulation needs.”
Crawl Space & Basement Technologies
“Anyhow, Jason came in and gave a thorough explanation of what his plan was, why the older methods only work short term, and how he completely guarantees all of his work.”
MPI Foam
“Working in attic areas was very difficult in the heat, but they persisted and completed the work in a fine way.”
Sears Contract Inc
“It is one of the best companies in the state of NC”
Certified Roofing and Siding Specialist
“They did what they said they were going to do and fixed any problems along the way, They showed up on time, they did quality work, the workers were polite and highly skilled.”
Ecomaster Insulation Contractors and Home Performance Experts
“*****After install Update*****, Jonathan and his crew did a great install job, including sealing air penetrations and adding a ziptop enclosure to around the dropdown stairs.”
Sealed Solution
“They even went beyond the call of duty and provided me pros and cons of different methods, different pricing paths, and laid out all the details in a simple and measureable way.”
Luna Restoration
“I had fixtures switched out and the guys were prompt and did an awesome job!”
Evergreen Foam & Insulation
“The staff clearly cares about their customers and adds an element of professionalism not common enough in the industry.”
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Why these companies made our list
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