Compare top-rated insulation contractor providers in St. Louis. Profiles include verified reviews, service details, and direct contact options.
Open 8:00 AM – 5:00 PM
Koala Insulation of St. Louis is a family-owned certified insulation expert providing high-quality insulation services to homeowners, contractors,…
These companies are based in nearby cities and serve St. Louis.
Open 8:00 AM – 5:00 PM
Insulation specialists offering removal and installation for energy efficiency
Open 7:00 AM – 5:00 PM
Peterson Energy Consultants has been and still is a family owned and operated business, I Paul Peterson got started in the Insulation Industry ri…
Open 8:00 AM – 4:30 PM
Founded with the intent of providing top quality insulation products and installation techniques for energy efficient homes. Our goal was to be mo…
Open 8:00 AM – 5:00 PM
At Better Home Insulation, we help homeowners create more comfortable, quieter, and energy-efficient homes. We keep the process simple and stress-…
From $50
Up to $500
Open 8:00 AM – 7:00 PM
In Fairview Heights, we are Greenmark Home Performance, LLC - a versatile team specializing in home performance solutions. Our expertise lies in i…
Open 8:00 AM – 9:00 PM
Residential & Commercial Insulation Contractor - We take pride in our work, as well as the community we live in. We strive for honesty and int…
Open 8:00 AM – 5:00 PM
At Foam Co. we believe in delivering innovative solutions to make your home or business healthier, more energy efficient, and more comfortable. Di…
Open 7:00 AM – 4:00 PM
We are now taking clients for September 2024, we offer insulation removal, fiberglass and blown in insulation installation in the greater st Charl…
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We show only active businesses that pass moderation. Results are specific to St. Louis and nearby service areas, and inactive profiles are removed to keep the list current.
Ratings and reviews come from customers who used the service. Compare insulation contractor pros in St. Louis by experience, responsiveness, and value before you reach out.
Filter by neighborhood, check locations on the map, and find providers close to home or work in St. Louis. Listings are refreshed regularly — October 2026.
The same listings in the closest cities — providers there often take jobs in St. Louis too. Mileage is the approximate distance from St. Louis.
Looking for insulation contractor in St. Louis? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
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Our house a 2 1/2 story (all roof except first floor), built in the late 1800s. Each summer, heat got trapped in the roof and attic, making the upper floors impossible to cool down even with two constantly running whole house a/c units. I called several insulation companies last winter and Koala was by far the most responsive. Koala added a significant amount of new insulation to the attic floor (stopping the conditioned air from being pulled into it), a very strong solar powered attic roof vent with a thermostat, and also insulated our attic access panel. We were able to tell the difference this year as soon as the outdoor temp started to rise. Today it's 90 degrees outside and the 2nd floor - where we sleep - is at least 5 degrees cooler than it was last summer with the same outdoor temperature. The Koala sales rep was informative without being pushy or trying to oversell, the installers showed up on time and were both hard working and friendly, and the price was very fair. We even qualify for a federal tax credit! Although I haven't yet received a summer electric bill, I think we'll recover the cost fairly quickly. Even without any utility savings, it was well worth the price. Highly recommend!
Great customer service. Estimator (Joe) was knowledgeable and professional. Great explanation of what was to be done. Crew showed up on time at 7 a.m. Great explanation (Josh) of what actually was done. Removed old insulation, sealed, blew in new fiberglass. Provided pictures. Great Clean-up. Super Competent and friendly.
koala offers free estimate's. April 3rd 10:00 AM Kola arrived at the promised time and installed 16" of blown in insulation in my attic. Time on site a little over an hour. Shortly after leaving I revived an email billing. They accept credit card's so I paid with a credit card. I was provided with paid confirmation. In a additional email they provided a Lean Waver for materials & labor. Great job Koala. I rate them 5 Stars. Bob D.
We had a great experience with this company, who added cellulose insulation to our attic when a home inspection found it lacking in some areas. They were very courteous and did a good job, and their price was reasonable. We have a child with health issues and appreciated that they masked in our home upon request. Would recommend!
Just had Koala update and improve my attic insulation along with added garage; which was previously un-insulated. Everything from initial contact to completion of work was as described and completed ahead of schedule. Nice to finally see good communication and reliable service. Showed up right on schedule, received text of their anticipated arrival, completed work with timeline, and cleaned up residual on the ground. I've been working with multiple contractors lately regarding other work around my home and you know good service when you see it. I highly recommend!!!!
Jill and Jennifer were great to coordinate with. Mike, Keenan and Joe installed batt insulation in our basement and blow-in in our attic. They were very professional and completed the job quickly and cleaned everything after. Koala installed a solar vent fan in the attic and had a roofer come out. He was equally as quick and courteous. I'd absolutely recommend using koala.
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