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Gateway West & Metro East IL • Locally Owned • Nationally Backed

Professional Insulation Services in Gateway West & Metro East IL

Lower energy bills, more comfortable home, clean 1-day service. Get a FREE on-site evaluation from Gateway West & Metro East IL’s trusted insulation pros.

FREE in-home evaluations & written quotes Utility & government rebates may be available on qualifying air sealing & insulation services*
★★★★★ 4.9/5 from 554+ happy homeowners
  • FREE in-home evaluation
  • Same-week installation
  • Licensed & insured pros
  • Workmanship warranty
  • Clean, 1-day service
  • Utility rebate assistance
Call 314-756-5661 Get Free Quote →

Our Insulation Services

Full-service residential & commercial insulation across the Gateway West & Metro East IL area.

Blown-in insulation

Blown-In

Spray foam insulation

Spray Foam

Batt insulation

Batt

Attic Fans

Attic Fans

Insulation removal

Removal

Air sealing

Air Sealing

Commercial & New Construction

Trusted by Gateway West & Metro East IL builders, GCs, and property owners for large-scale insulation projects. We deliver on spec, on schedule, and on budget.

  • Energy Efficiency tailored to your project’s R-value requirements
  • Large Project Experience across multifamily, commercial, and new builds
  • Inspection & Code Compliance from quote through final walkthrough
Commercial
Koala Insulation commercial spray foam installation
New Construction
Koala Insulation new construction interior install

Why Choose Koala?

Experience the Koala Insulation difference: clean, easy, 1-day insulation service.

  • Workmanship warranty on every install
  • FREE on-site evaluations & written quotes
  • Utility & government rebate-eligible services
  • Most jobs completed in just one day
  • Local, licensed, insured Gateway West & Metro East IL team

What Gateway West & Metro East IL Homeowners Say

★★★★★  4.9/5 average from 554+ verified reviews

★★★★★

“We had a great experience with Koala insulation! Joe gave me a very detailed quote and sat down to explain the pros and cons of my choices. I was able to schedule with 2 weeks of my quote and the work was done by noon in one day! The prices were very reasonable and the scope of work was explained thoroughly and everything was line itemized. I would definitely recommend Koala!”

Annie Allen
★★★★★

“Everyone at the Koala Team has customer service as their number one priority. The Sales Rep, Joe, explaining the specific needs and scope of the project. Customer Service Department setting the appointments and providing helpful information. The installation crew were on time, professional, courteous and respectful of my home. I would highly recommend this company for your insulation needs.”

Gina Hammerschmidt

Frequently Asked Questions

How much does insulation cost?
Pricing varies based on space, R-value, and type of insulation. We provide a free in-home evaluation with a written, no-obligation quote.
What’s the best type of insulation for an attic?
It depends on the space. Cellulose is preferred for tighter attic spaces. Open-cell spray foam is most efficient for larger spaces. The most budget-friendly option for most attics is air sealing combined with cellulose insulation.
What’s the best insulation overall?
There’s no single best. What’s right depends on your home, R-value needs, and budget. Our team walks you through every option during your free evaluation.
Do you service my area?
Yes, we proudly serve St. Charles, St. Louis, Chesterfield, Ballwin, Wildwood, Edwardsville, and all surrounding communities throughout the Gateway West & Metro East IL area. Contact us to confirm coverage for your specific address.
Are there rebates available?
Yes. We offer utility and government rebates on qualifying air sealing and insulation services. Eligibility requirements apply. Ask us during your free quote.
How long does the work take?
Most insulation jobs are completed in a single day. Our team arrives on time, protects your home, completes the install, and leaves your space cleaner than we found it.

Ready to lower your energy bills?

Book your free insulation evaluation now. Same-week availability across Gateway West & Metro East IL.

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