4.5 
31 *The Angi rating for Insulation Service companies in Downs, 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 Downs, 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 24, 2025
Serving Downs, 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 Downs, IL and surrounding areas
Approved
In business since 2000
Free estimates
Customers say: True professional
"Installed additional insulation in attic and walls and did an excellent job. Also put in attic vents and exhaust fan. I will hire again for various construction projects."
+8
Serving Downs, 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 Downs, 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 Downs, IL and surrounding areas
In business since 1948
Emergency services offered
Credit card accepted
"Home Comfort Insulation employee's were very courteous and got the job done in a very expeditious timeframe. I highly recommend using them for any of your insulation needs. You won't be disappointed."
Serving Downs, IL and surrounding areas
In business since 1948
Free estimates
Emergency services offered
"The team were very professional, owner came at end of day to check up on quality of job (I asked him to look at my attic insulation, he could have easily conned me into paying for more - he didnt, and told me I didnt really need it... he found another insulation issue but recommended I solve it DIY style!)... so he wasnt interested in the $$$$.... Once he found I was happy with work he left me an invoice, no pressure to pay on the spot. The work has done exactly what he promised and I can recommend using them."
Serving Downs, IL and surrounding areas
In business since 1993
Free estimates
"Very courteous and they clean up afterwards. They give you a lot of insulation for your money. Theyâ re hard workers."
Serving Downs, IL and surrounding areas
In business since 1978
"This service went above what was expected. They fixed issues that came up and needed attention without altering the original bid. I will recommend them to anyone needing insulation."
Serving Downs, IL and surrounding areas
In business since 2013
Free estimates
Offers commercial services
"Jeff is very prompt and provides quality work at a great price."
+3
Serving Downs, IL and surrounding areas
In business since 2011
Free estimates
Credit card accepted
"The crew was very courteous, they got the job done, I thought the materials were a little high. Overall, they did a great job. I wont know how good the work is until my utility bill comes in. Ameren did the Home Audit for me, and that's what prompted me to get the insulation project done. The project only took a couple days to complete. The price did include blown in for my Attic and Rolled Batting in the basement"
+55
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.
