4.4 
55 *The Angi rating for Insulation Service companies in Dover Afb, DE 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 Dover Afb, DE 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 December 18, 2025
Serving Dover Afb, DE and surrounding areas
Approved
In business since 2006
Free estimates
Small jobs welcome
"Work to insulate bonus room was done on time and workmanship was very good."
+7
Serving Dover Afb, DE and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Did a great job on the insulation however they left a hole in the ceiling when they dropped something on the attic floor. Not a big deal but they need to be careful. Overall, amazing work they do all kinds of insulation and they also install radiant barriers on roof joists. They are reasonably priced and the crew is super friendly, pleasure to work with."
+6
Serving Dover Afb, DE and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Warranties offered
"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."
Serving Dover Afb, DE and surrounding areas
Approved (Corporate)
In business since 1928
Free estimates
Credit card accepted
"Did not see the temperature difference I thought I would."
Serving Dover Afb, DE and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"John Carpenter did an excellent job of cleaning our dryer vent."
+137
Serving Dover Afb, DE and surrounding areas
In business since 2019
Free estimates
Offers commercial services
"I live in Dover, Delaware. I had blown fiberglass insulation in my attic. They did an amazing job. I would hire them again!"
Serving Dover Afb, DE and surrounding areas
In business since 1987
Free estimates
Emergency services offered
"I got 3 estimates and this company was the best price. From the free estimate to completion of work, everything was so professional. They showed up on time with a 7-man crew, so the job was completed in one day. Six years after the job was done, my basement is still bone dry - so dry it actually gets dusty! My crawlspace is so low a person can only crawl around, but they did a great job there, as well, installing a thick white vapor barrier."
Serving Dover Afb, DE and surrounding areas
In business since 2010
Free estimates
"Followed through with everything. Would hire them again."
Serving Dover Afb, DE and surrounding areas
In business since 2010
Free estimates
"When Mike did the free estimate, he told me it wasn't the walls where we were losing heat. It was my crawl space. Also, totally above the work of insulating the space, he noticed an air duct was disconnected. He got the straps needed to fix the vent and didn't charge me. Excellent customer service. He was neat, on time, and quick with the insulation."
+3
Serving Dover Afb, DE and surrounding areas
In business since 2014
Free estimates
Credit card accepted
"Enjoyed discussing the project with Mr. Gregory. Very hard worker and kept me abreast of wit video and photos of what he was fixing under my house."
+2
From average costs to expert advice, get all the answers you need to get your job done.
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
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.
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
