4.5 
22 *The Angi rating for Insulation Service companies in Union, MO 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 Union, MO 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 May 02, 2026
Serving Union, MO and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Foam Co did an excellent job, very prompt, informative and priced competitively. Highly recommend!"
+15
Serving Union, MO and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Look no further if you need insulation. Very competitively priced ,showed up on time. Did a terrific job insulating my attic. Thank you Liron and Better Home Insulation!"
+25
Serving Union, MO and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Did exactly what I asked them to do. No extra sales hassles, professional inspection, report, updates and installation. Great service and solution for the value. My attic is well insulated thanks to FOAM-CO."
+7
Serving Union, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Small jobs welcome
"The team at West County Insulation came out to remove and install new attic insulation for my home. Throughout the process they had quick communication and were always on top of the project. Recommend for anyone else to use."
Serving Union, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Excellent customer service thru the whole process and job was done 100% to our satisfaction. I would recommend any one to I Foam company for their insulation projects, thanks to the manager/owner and staff of I Foam.b"
+11
Serving Union, MO and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n
Serving Union, MO and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
Good Attic is a trusted attic insulation and home comfort company serving homeowners throughout St. Charles and the greater St. Louis area. We specialize in blown-in insulation upgrades, air sealing, attic cleanouts, and ventilation improvements that solve hot/cold rooms, drafts, high energy bills, and poor airflow. Our team provides honest pricing, same-week appointments, and detailed before-and-after photos so you always know exactly what you’re getting. If you want a cleaner, more comfortable, and more energy-efficient home, Good Attic delivers results you can feel immediately.
Serving Union, MO and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"Told me I didnâ t need insulation."
+17
Serving Union, MO and surrounding areas
In business since 1977
Free estimates
Credit card accepted
"They done a excellent job."
Serving Union, MO and surrounding areas
In business since 2009
Free estimates
Credit card accepted
"Once project started, it went well. Finished project looked great."
+6
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.
