4.4 
170 *The Angi rating for Insulation Service companies in Sun Prairie, WI 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 Sun Prairie, WI 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 August 16, 2026
Serving Sun Prairie, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Credit card accepted
"The company does installation of insulation. But it does not do removal of existence contaminated insulation."
+24
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Kyle wen above and beyond my expectations! Very professional and knowledgeable! Every business should have someone like Kyle. I would highly recommend Elite Insulators. I have other projects coming up and he is already hired! Lol! THANK YOU Kyle!!"
+56
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
At Koala Insulation of Madison, we’re all about making your space more comfortable and efficient. We believe in doing things right, with a personal touch that sets us apart. From top-notch products like spray foam insulation to friendly service, we’re here to help you achieve the perfect insulation solution for your home or business.\n\nDiscover why our customers love working with us and how we can make a difference for you!\nGet a Free Estimate\n
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2022
Free estimates
Offers commercial services
"He was great and did an awesome job."
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
Real measurements. Thermal imaging. The owner at your door. Zero pressure.\nTell us about your house and Erik will call you back to set a time. The estimate is free everywhere we work, and it comes with proof — not a guess over the phone.
+7
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2009
Free estimates
Offers commercial services
"Aaron did a fantastic job and I would highly recommend him"
Serving Sun Prairie, WI and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Saunders installed a bath exhaust fan and light as well as attic insulation for us. Very professional and efficient - a timely installation, performed very soon after contract was written. Great people to work with and great cleanup after. Highly recommend. Also Home Advisor worked well; contact was made within hours of submission."
Serving Sun Prairie, WI and surrounding areas
Approved (Corporate)
In business since 2020
Free estimates
Credit card accepted
"Salesman was very professional. Showed up in a vehicle worth the name on the side and in a uniform. Made a video of the bad area of our gutters and explained in detail what problems this would cause and had a very good presentation about the company and product."
Serving Sun Prairie, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Excellent company ! Prompt customer service, great value, answered all of our questions. Yard was spotless after completion of the new roof. We have referred Modern exterior to our friends and family."
+600
Serving Sun Prairie, WI and surrounding areas
Approved (Corporate)
Free estimates
Credit card accepted
Offers commercial services
RetroFoam of Wisconsin specializes in RetroFoam injection foam insulation for existing walls, helping homeowners improve comfort and energy efficiency without the mess or disruption of a full remodel. Our insulation solution is designed to reduce drafts, help maintain consistent indoor temperatures, and make homes more comfortable year-round. We serve homeowners across the state. Whether you live in a historic home or a newer build, our team provides a proven insulation solution tailored to your needs.
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.
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.
The cost of blown-in insulation costs varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
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.
