4.5 
117 *The Angi rating for Insulation Service companies in Deerfield, 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 Deerfield, 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 Deerfield, 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 Deerfield, 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 Deerfield, 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 Deerfield, WI and surrounding areas
Approved
In business since 2022
Free estimates
Offers commercial services
"He was great and did an awesome job."
Serving Deerfield, 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 Deerfield, WI and surrounding areas
Approved
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 Deerfield, 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 Deerfield, 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.
Serving Deerfield, WI and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
Were a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!\n
Serving Deerfield, WI and surrounding areas
In business since 1977
Free estimates
Credit card accepted
"Saunders Insulation was professional from start to finish. They came as scheduled and did an excellent job. I would recommend them to anyone who wants to improve the comfort of their home."
+5
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.
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.
