Crystal Lake, IL Insulation Services by Koala Insulation Northern Illinois

Crystal Lake, IL is a thriving suburb northwest of Chicago, known for its family neighborhoods, lakefront homes, and active outdoor lifestyle. With bitterly cold winters and humid summers, proper insulation in Crystal Lake homes is key to year-round comfort. Koala Insulation of Northern Illinois provides expert service for attic insulation, air sealing, crawl space encapsulation, and more—customized for Crystal Lake’s varied housing styles and climate.

Our Crystal Lake, IL Insulation Services

Attic Insulation

Attic insulation helps lower heating and cooling costs while maintaining consistent indoor temperatures. Learn more

Spray Foam Insulation

Excellent for sealing attics, rim joists, and garage ceilings in older homes and modern builds alike. Learn more

Blown-In Insulation

Blown-in insulation is perfect for attic retrofits, especially in homes built before 1990. Learn more

Batt Insulation

Batt insulation works well in walls and ceilings during remodels or room additions. Learn more

Air Sealing

We seal critical bypasses and gaps to improve comfort and reduce HVAC strain year-round. Learn more

Solar Attic Fans

Reduces attic heat and humidity by promoting passive ventilation with solar energy. Learn more

Crawl Space Insulation

Encapsulation prevents ground moisture, drafts, and mold in crawl space foundations. Learn more

Commercial Insulation

From retail spaces to municipal buildings, we provide clean, fast insulation for local businesses. Learn more

Nicor Gas Rebates for Crystal Lake Homeowners

Save on home insulation upgrades by participating in Nicor Gas’ Energy Efficiency Program. Find a contractor

Book Your Free Estimate

Schedule your free insulation estimate with Koala Insulation of Northern Illinois and take the first step toward better comfort and savings in Crystal Lake.