4.1 
18 *The Angi rating for Insulation Service companies in Saint Louis, MI 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 Saint Louis, MI 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 April 30, 2026
Serving Saint Louis, MI and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"Excellent job to spray insulate the existing attic. We have noticed a difference already."
Serving Saint Louis, MI and surrounding areas
Approved
In business since 1977
Free estimates
Warranties offered
"They did a great job. Arrived, went into teams, and worked without a break to complete our insulation job. I would totally recommend them!"
+6
Serving Saint Louis, MI and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
Make your Saginaw home more comfortable while lowering energy costs with proper insulation installation. We deliver excellent insulation materials and expert workmanship to boost your property's efficiency with Koala Insulation of Mid-Michigan.\n\nThere’s no substitute for experience. That’s why Saginaw homeowners rely on our comprehensive insulation services. Our trained insulation professionals conduct a detailed assessment of your home’s energy environment and provide expert recommendations. Koala Insulation of Mid-Michigan offers a range of insulation solutions.\n\n
Serving Saint Louis, MI and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"We are extremely with the workmanship Infinity Home Improvement showed. Excellent response time. Spectacular customer service. We highly recommend"
+336
Serving Saint Louis, MI and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
"Friendly and professional company. Explained alot about what they were doing, cause I really didn't know anything about insulation and ventilation."
Serving Saint Louis, MI and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
“Handrichs Contracting LLC, led by Joshuwa Handrich, is a licensed and insured residential builder specializing in new custom home construction, full general remodels, concrete work, drywall, roofing, spray foam insulation, and professional gutter installation. With a strong commitment to quality craftsmanship, transparent pricing, and timely project completion, we deliver durable, energy-efficient results that enhance homes throughout Michigan. We prioritize clean job sites, clear communication, and complete customer satisfaction—contact us to bring your vision to life.”
+3
Serving Saint Louis, MI and surrounding areas
In business since 2019
Free estimates
"It was the coldest day of the year so far and they still showed up and did the job which was all outside."
Serving Saint Louis, MI and surrounding areas
In business since 2025
Free estimates
We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
Serving Saint Louis, MI and surrounding areas
In business since 2000
Free estimates
Offers commercial services
R Factor Foam LLC has over 30 years of experience in the industry! Our professional installers can fulfill any insulation needs you have. Owner Jeff takes takes pride in professionalism and superior customer service. Give us a call today for a free quote!
Serving Saint Louis, MI and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"Put baffles in attic and insulation, did ok job. I would have rated higher but they blew 2 or 3 bags of insulation over the garage which does not need any, otherwise not bad.."
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.
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