Thermo Insulation LLC
Verified Pro
3½+ years online5.0
Insulation Services in Naperville, IL
Compare 28 insulation services contractors near you in Naperville and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
Home Insulators LLC
Accurate Wire & Insulation
5.0Air Defense Foam llc
5.0ANI-Midwest Fireproofing and Insulation
5.09+ years onlineChicago Spray Foam Insulation Pros
5.05½+ years onlineExtreme Spray Foam of Naperville
5.07½+ years onlineKoala Insulation of Chicago - Western Suburbs
5.07+ years onlineLP Insulation of Naperville
5.04½+ years onlineSolar spray foam insulation inc.
5.0ARC Insulation
4.923½+ years onlineCarroll Construction Supply
4.926½+ years onlineChicago Green Insulation, Inc.
4.9~13 years onlineKoala Insulation of SW Chicago
4.97+ years onlineWalton Contractors
4.913½+ years onlineGreen Attic Insulation
4.816 years onlineSouth Chicago Insulation, LLC
4.8Weather Shield Insulators
4.89½+ years onlineDupage Insulators Inc
4.6Garland Insulation Contractors
4.3Corwin Drywall Contracting LLC
4.27½+ years onlineInsulation Services in Nearby IL Cities
Other Services in Naperville
Access Control & Intercom(44)Alarm System Installation(25)Appliance Installation(24)Artificial Turf Installation(28)Automotive Installs(2)Concrete & Paving(35)Deck & Patio Building(33)Electrical Services(22)EV Charger Installation(11)Fencing & Gate Installation(21)Fire Protection & Sprinklers(31)Garage Door Installation(21)
About Insulation Services in Naperville
Insulation services cover attic, wall, floor, and crawl space insulation using materials like fiberglass batts, blown-in cellulose, spray foam, and rigid board. Proper insulation reduces heating and cooling costs and improves comfort year-round.
Typical costs: Attic insulation runs $1,500–$4,000 for a typical home. Spray foam for a crawl space or basement is $2,000–$6,000. Whole-home insulation upgrades can be $5,000–$15,000.
Common projects include:
- Attic insulation upgrade
- Spray foam crawl space or basement
- Wall cavity insulation
- Weatherization and air sealing
- Garage insulation
Simple insulation upgrades in existing walls and attics usually don't require permits. If the work involves modifying structure or electrical, permits may apply.
Frequently Asked Questions
- How much does insulation services cost in Naperville?
- Blown-in attic insulation to bring an older home up to current R-value standards runs $1,500–$4,000. Spray foam insulation for a crawl space or rim joist is $2,000–$6,000. Many utility companies offer rebates for insulation upgrades — ask your installer about available incentives.
- How do I find a reliable insulation services contractor in Naperville?
- A good insulation contractor starts with an energy audit or at least an R-value assessment of your current insulation. They should recommend the right material for each area (spray foam for air sealing, blown-in for attics, batts for accessible wall cavities).
- Do I need a permit for insulation services in Naperville?
- Adding insulation to existing spaces (attic blow-in, wall injection) typically doesn't require a permit. If the project involves structural access, like opening walls, permits may be needed.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Naperville and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.