4.4 
18 *The Angi rating for Insulation Service companies in Randolph, 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 Randolph, 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 September 01, 2025
Serving Randolph, 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 Randolph, 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 Randolph, 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 Randolph, 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 Randolph, WI and surrounding areas
Approved
In business since 2011
Free estimates
Customers say: Quick response
"He arrived on time, was very polite, answered our questions and had good customer service."
Serving Randolph, 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 Randolph, 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 Randolph, 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 Randolph, WI and surrounding areas
In business since 2005
Free estimates
"He showed up on time and knew what to do and was great at the estimate he gave."
Serving Randolph, WI and surrounding areas
In business since 2012
Free estimates
Warranties offered
"They were very helpful arrived on time I did a methodical job uninstalling insulation was very happy with what I saw"
+2
From average costs to expert advice, get all the answers you need to get your job done.
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.
Crawl space insulation costs vary by size, insulation type, and material. Read this guide to learn how much your crawl space insulation could cost.
Find out the average pipe insulation cost, including material and labor prices, plus tips to save money on your project.
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!
Removing old insulation may be necessary for upgrading your insulation. Keep reading to see if you should remove old insulation before adding new insulation.
If your home’s temperature is uncomfortable or your energy bill is spiking, you should check your insulation. We'll help you find out if you should replace it.
