Attic Insulation in Chicago
Green Attic is a BPI-certified insulation contractor serving Chicago and the surrounding suburbs — attic insulation, air sealing, spray foam, and insulation removal, installed by our own crews.
Attic insulation means blown-in cellulose or fiberglass brought up to the R-value Chicago's climate calls for, paired with air sealing to close the gaps — can lights, the attic hatch, plumbing stacks — that leak conditioned air first.
Insulation removal comes first when old, wet, or rodent-contaminated material is found — it's also the fix when trapped moisture from bad insulation is feeding attic mold.
Our spray foam insulation services are effective for sealing complex ductwork, reducing energy loss and improving HVAC efficiency.
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Trusted Experts in Insulation Solutions
Green Attic Insulation is the premier choice for insulation services in Central Chicago.
Chicago sits in Climate Zone 5, which calls for meaningfully more attic R-value than warmer parts of the country — and a lot of Chicagoland's housing stock predates the energy codes that would have required it. The result in an under-insulated attic is usually some combination of high heating bills, ice dams at the roof edge, and cold rooms directly under the attic.
With a blend of local insight and extensive industry experience, we've established ourselves as the trusted partner for homeowners seeking durable, high-performance insulation tailored to the specific demands of city living.
Chicago sits in Climate Zone 5, which calls for meaningfully more attic R-value than warmer parts of the country — and a lot of Chicagoland's housing stock predates the energy codes that would have required it. The result in an under-insulated attic is usually some combination of high heating bills, ice dams at the roof edge, and cold rooms directly under the attic.
With a blend of local insight and extensive industry experience, we've established ourselves as the trusted partner for homeowners seeking durable, high-performance insulation tailored to the specific demands of city living.
Services We Offer in Central Chicago
At Green Attic Insulation, we prioritize transparency in our commitment to provide clear insights into the cost of our services. We value your trust your business and want to ensure that our cost and quality are the BEST.
**all of our cost varies based on size (sq ft.) of area being serviced
Attic Insulation
$2.00-2.75*
Fiberglass
Fiberglass
$2.25-3.00*
Cellulose
Cellulose
* These prices are per sq. ft which can vary depending on existing insulation, total sq. ft, pitch of the roof, attic access and final R-value.
Air Sealing
$0.50*/sq. ft
* Prices vary depending on total sq. ft, pitch of the roof and attic access.
Spray Foam
Open Cell R3.5 - starting at $0.75/sq. ft for 1 inch
Close Cell R7 - starting at $1.25/sq. ft
* For Commercial application inquire for pricing
Crawl Space Insulation
Starting at $900 for minimum crawl space size
* However prices vary based on scope of work and size
Wall Insulation
Fiberglass starting at $2.50/sq. ft
Cellulose $3.00 sq. ft Spray Foam (see price for spray foam)
Garage Insulation
$1500 for 1 Car Garage
$2200 for 2 Car Garage
* Prices vary depending on total sq. ft and type of insulation
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Chicago Neighborhoods & Suburbs We Serve
We serve Chicago and the surrounding suburbs across the North Shore, Northwest, West, Southwest, and South regions, including Deerfield, Evanston, Glencoe, Glenview, Highland Park, Highwood, Kenilworth, Lake Bluff, Northbrook, Northfield, Skokie, Wilmette, Winnetka, Arlington Heights, Barrington, Bartlett, Buffalo Grove, Carpentersville, Cary, Des Plaines, Elgin, Elk Grove Village, Grayslake, Hoffman Estates, Inverness, Kildeer, Lake Villa, Lake Zurich, Libertyville, Long Grove, Morton Grove, Mount Prospect, Mundelein, Palatine, Park Ridge, Prairie Grove, Roselle, Schaumburg, Schiller Park, South Barrington, Vernon Hills, and West Dundee. Don't see your suburb listed? Call us anyway — this list isn't exhaustive.
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Rebate Partners and Options
Green Attic is an approved contractor and trade ally partner with Peoples Gas, Nicor Gas, North Shore Gas, ComEd, and the Elevate program, giving Chicago homeowners access to rebates on qualifying insulation projects. Amounts and eligibility change year to year — your estimator will confirm exactly what you qualify for.
Client Testimonial
"Green Attic Insulation transformed my attic into a highly efficient space. The team's professionalism and attention to detail were outstanding. My home is now more comfortable, and I can already see the difference in my energy bills. I highly recommend Green Attic Insulation!”
Mr. Zane
Homeowner in Long Grove, Illinois
Homeowner in Long Grove, Illinois
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Frequently Asked Question
How much does attic insulation cost in Chicago?
Cost depends on your attic's square footage, current R-value, and accessibility — every attic is different. Get a free, in-person inspection for an exact number.
Do you serve my suburb?
We cover Chicago and the surrounding North Shore, Northwest, West, Southwest, and South suburbs — see the full list above. If you're unsure, call and ask.
What's the difference between blown-in insulation and spray foam?
Blown-in cellulose or fiberglass is the standard, cost-effective option for most attics. Spray foam costs more but air-seals and insulates in one step, which makes it a better fit for finished attics, additions, or homes with persistent ice-dam or draft problems.
Are there rebates available for insulation in Chicago?
Yes — we work with Peoples Gas, Nicor Gas, ComEd, and the Elevate program on qualifying attic insulation projects. Amounts and eligibility vary by program and change year to year, so your estimator will confirm exactly what you qualify for.
Can adding attic insulation help with common Chicagoland issues like ice dams and drafty second floors?
Yes — adding or upgrading attic insulation can help with common Chicagoland issues like ice dams and drafty second floors. A stronger insulation layer limits heat loss into the attic, helping keep the roof colder to prevent snowmelt and supporting a more even temperature between floors. Pairing insulation with attic floor air sealing and proper ventilation boosts performance and makes your home more energy-efficient.
How long does attic insulation installation usually take in Chicago, and how disruptive is the process?
Attic insulation installation in Chicago typically takes 1 to 2 days, and many projects are completed in 4-8 hours. The process is typically easy on your day-to-day routine, since crews usually work through the attic access point and use protective coverings to help keep your living areas clean and tidy. Although you may notice some noise from the blower equipment during installation, most homeowners are able to remain at home comfortably throughout the process.
If my HVAC runs constantly in winter, will attic insulation help, or do I need duct sealing too?
Yes, upgrading attic insulation can help your HVAC run less in winter by keeping more warm air where you want it. Pair it with attic air sealing and duct sealing for the best results, especially if your ducts run through a cold attic, so more of your heating stays in your living space and delivers maximum comfort. Sealing and insulation help your system deliver heat more efficiently and keep your home feeling warmer and more consistent.
Will I need a permit or inspection in Chicago for certain insulation or ventilation changes, and does that affect pricing?
You need a permit or inspection for most insulation or ventilation changes in Chicago, especially when the work improves the building envelope or involves HVAC or ductwork, helping keep the project compliant and completed to a high standard. These requirements can add to the total project cost, and they also help ensure the work is completed legally, smoothly, and up to code for long-term peace of mind. A quick check with the City of Chicago Department of Buildings or your contractor upfront helps keep pricing clear and the process smooth.
Is the inspection really free?
Yes — every project starts with a free, in-person inspection before you get a quote.
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