4.7 
78 *The Angi rating for Insulation Service companies in Champaign, IL 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 Champaign, IL 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 12, 2026
Serving Champaign, IL and surrounding areas
Approved
In business since 1992
Free estimates
Credit card accepted
"Job completed with no issues. I am very satisfied with the workmanship."
Serving Champaign, IL and surrounding areas
Approved
In business since 1975
Free estimates
Offers commercial services
"Slagel insulation provided the work that was asked of them. I would hire them back."
+13
Serving Champaign, IL and surrounding areas
Approved
In business since 2014
Free estimates
Customers say: Quick response
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
Serving Champaign, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
We do professional foam insulation and we’re trying to be the best
Serving Champaign, IL and surrounding areas
In business since 1993
Free estimates
"Prompt, courteous service. Price was very reasonable also. Would highly recommend Horn Insulation for any of your insulation needs!"
Serving Champaign, IL and surrounding areas
In business since 2001
Free estimates
Warranties offered
"I worked with Olmstead Brothers to have my pole barn spray foamed. I was so happy throughout the entire process. I have worked with several insulators through years of home construction, but Kyle and his crews bring a level of professionalism that is not typical in the residential construction industry. Kyle was extremely knowledgeable and easily answered all of my questions. The crew arrived right on time and did a great job of protecting all the surfaces to keep foam off my floor, lights and doors. They cleaned up nicely and were a pleasure to work with. I would recommend Olmstead Brothers to anyone interested in insulating a home, barn or any other structure!"
+20
Serving Champaign, IL and surrounding areas
In business since 1978
"Very pleasant to work with."
Serving Champaign, IL and surrounding areas
In business since 1993
Free estimates
"the job was done quickly. i could feel the difference almost right away. i would recommend Horn Insulation too anyone who needs insulation."
Serving Champaign, IL and surrounding areas
In business since 2015
Free estimates
"Thanks to them, our bedroom in our new home was toasty for the first time since the temps dropped below freezing! They were fast, friendly, scheduled us quickly, and cleaned up every scrap of dust afterwards. The price was great, too. We will be working with them again on our basement insulation shortly, and would heartily recommend them to anyone who needs insulation work in this area."
Serving Champaign, IL and surrounding areas
In business since 1974
Free estimates
Offers commercial services
"Very good work, Gained 6-8 Degrees in home - COMPLETELY ELIMINATED drafts, Very hard worker (Clark) DID very good job."
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