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Denver • Locally Owned • Women Owned

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Lower energy bills, more comfortable home, clean 1-day service. Get a FREE on-site evaluation from Denver's trusted insulation pros.

Insulation starting at $1.60/sqft Plus Xcel & Black Hills Energy rebates on air sealing & insulation services*
★★★★★ 4.9/5 from 298+ verified reviews
  • FREE in-home evaluation
  • Same-week installation
  • Licensed & insured pros
  • Workmanship warranty
  • Clean, 1-day service
  • Utility rebate assistance
Call 720-824-6030 Get Free Quote →

Our Insulation Services

Full-service residential & commercial insulation across the Denver metro and Colorado.

Blown-in insulation

Blown-In

Spray foam insulation

Spray Foam

Batt insulation

Batt

Air sealing

Attic Fans

Removal

Solar attic fans

Air Sealing

Commercial & New Construction

Trusted by Colorado 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
Lifetime workmanship warranty

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
  • Xcel & Black Hills Energy rebate-eligible services
  • Most jobs completed in just one day
  • Local, licensed, insured Denver team
Koala team installing insulation Insulated attic by Koala Energy-efficient insulation install

What Denver Homeowners Say

★★★★★  4.8/5 average from 134+ reviews

★★★★★

"Fantastic customer service and cleaned up everything very well for a much-needed blown-in attic insulation."

Natalie L., Denver
★★★★★

"Best company I have worked with in years! Super professional, friendly, on time, and great work."

Curtis H., Centennial

Frequently Asked Questions

How much does insulation cost?
Insulation starts at $1.60/sqft and 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 serve Denver, Littleton, Aurora, Englewood, Monument, Watkins, Colorado Springs, Parker, Centennial, Highlands Ranch, Larkspur, Castle Rock, Sheridan, and surrounding areas.
Are there rebates available?
Yes. We offer Xcel Energy and Black Hills Energy 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 Denver.

📞 Call 720-824-6030 Get Free Quote
© 2026 Koala Insulation of Denver · 2721 W Oxford Ave #4, Sheridan, CO 80110 · 720-824-6030
*Eligibility requirements may apply to Xcel & Black Hills Energy rebates.
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