4.6 
146 *The Angi rating for Insulation Service companies in Knightdale, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Knightdale, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on April 21, 2026
Serving Knightdale, NC and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"These guys were great. They came for a free estimate. After that they showed up in couple days and fill I the insulation. Great job and service. I highly recommend them. Very friendly and answered all my concerns and questions. Thanks"
Serving Knightdale, NC and surrounding areas
Approved
In business since 1985
Free estimates
Warranties offered
"Very Professional job. Adding insulation to the walls of our home has dropped our energy bills. Would absolutely tell somebody else to have this done especially if you have an older home."
Serving Knightdale, NC and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Triangle Radiant Barrier did a great job installing radiant barrier in our unfinished storage and attic. I was pleased with the whole process from the beginning where all the options for treatment were clearly explained, to the professionalism of crew who did the install, and to the final inspection. The insulated zipper door for the attic stairs is great so I don't have insulation falling down every time I touch the pull-down ladder."
+28
Serving Knightdale, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"We are very pleased with our experience and highly recommend 4 All Insulation for home insulation work."
+13
Serving Knightdale, NC and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
"Insulation Commandos insulated my garage drywall, and I had a great experience working with them. Tony was especially helpful in explaining the available options and recommending the solution that best fit my garage and specific needs. He was knowledgeable, professional, and even managed to fit me into his schedule on short notice, which I greatly appreciated."
+9
Serving Knightdale, NC and surrounding areas
Approved
In business since 2003
Free estimates
Warranties offered
"Great team that worked together and got the job done. I would recommend them to anyone that is looking to have some space insulated. Thanks guys."
Serving Knightdale, NC and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Extremely reliable and professional team! Very thankful we went with them to do the insulation in our crawlspace."
Serving Knightdale, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Credit card accepted
"The roofing project today went extremely well. Far exceeded our expectations and are happy with the work completed in one day! Chad Whitmore, project manager, was very professional, knowledgeable and answered all of my questions throughout the process. Definitely recommend HGE."
+73
Serving Knightdale, NC and surrounding areas
Approved
In business since 2015
Warranties offered
Credit card accepted
"Very happy with Kyle and his team. The finished product was excellent. They installed R-19 faced insulation in the crawl space along with a 10 ply vapor barrier. Work was done well and efficiently."
+6
Serving Knightdale, NC and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"These guys did good job with my crawl space. They had to remove a lot of very moldy insulation in space that was crawl only height. They showed up when they said, confirmed and best of all the price was reasonable. Prices were all over for this job and while theirs was most affordable, the work was well done. Professional and trustworthy. They were also competent, efficient and came with the needed respirator, and Tyvek suit to handle this toxic job. Thanks JImmie!"
+195
From average costs to expert advice, get all the answers you need to get your job done.
The cost of blown-in insulation in Raleigh, NC varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you in Raleigh, NC.
Your attic insulation removal cost in Raleigh, NC, varies based on multiple factors, including why you're removing it and how easy it is to complete the task.
Learn how to decide if your home needs dryer vent insulation to protect your vent from drafts and moisture that can make your energy usage less efficient. Poorly ventilated dryer vents also increase mold risks!
New insulation makes your home more comfortable and boosts energy efficiency. Use this guide to budget for insulation installation costs in Raleigh, NC.
Blinds installation costs in Raleigh, North Carolina, are higher than national averages. Invest in moisture-resistant materials to last in the city’s humidity.
