Wall Insulation in Chicagoland
At Green Attic, we help Chicago homeowners improve comfort and energy savings with high-performance wall insulation tailored for year-round efficiency.
Trusted by homeowners for reliable, energy-saving insulation solutions.
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Blown In Insulation Between Studs
Cellulose Blown In insulation between framing keeps the heat in the rooms in winter and keeps the heat out of the conditioned space in summer. Best for exterior wall insulation and cathedral ceiling. Great for sound-dampening basement ceilings.
✓ Plant Based Cellulose Insulation
✓ Clean Green Plant Based Wall Insulation
✓ Water damage from ice melts
✓ Clean Green Plant Based Wall Insulation
✓ Water damage from ice melts
✓ Loose Fill Insulation
✓ Fills Gaps and Voids Around Outlets
✓ Keep Heat Out In The Summer
✓ Fills Gaps and Voids Around Outlets
✓ Keep Heat Out In The Summer
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Wall Insulation R-Value Comparison by Material
Closed Cell Spray Foam R6.5 Per Inch
Fiberglass Insulation R3 per Inch
Dense packed blown in Cellulose Insulation R3.8 Per Inch
Dense Pack Blown In Insulation Garage Ceiling
Blown-in insulation for garage wall insulation and ceilings
Cold bedroom above the garage? Cellulose is a perfect choice for garage insulation. Our Premium Class 1 insulation is non toxic mineral infused fire, mold, pest resistant plant based.
Choose a warm cozy healthy home with controlled air quality and temperatures. High Powered Truck Mounted Machines deliver a fully packed stud cavity with R3.5 per inch.
✓ Prevent ice dams & water damage
✓ Warmer house all winter long
✓ Cooler house in the summer
✓ Improve indoor air quality
✓ Prevent mold between stud cavities
✓ Consistent temperatures throughout the house
Choose a warm cozy healthy home with controlled air quality and temperatures. High Powered Truck Mounted Machines deliver a fully packed stud cavity with R3.5 per inch.
✓ Prevent ice dams & water damage
✓ Warmer house all winter long
✓ Cooler house in the summer
✓ Improve indoor air quality
✓ Prevent mold between stud cavities
✓ Consistent temperatures throughout the house
Blown in Insulation Between Ceiling Framing
Blown in insulation between framing prevents heat escape in winter and keeps the heat out of the conditioned space in summer.
Cellulose is best for exterior wall insulation and cathedral ceiling. Great for high ceilings with no attic.
✓ Loose Fill Insulation
✓ Fills Gaps and Voids Around Outlets
✓ Keep Heat Out In The Summer
✓ Plant Based Cellulose Insulation
✓ Clean Green Plant Based Wall Insulation
✓ Water damage from ice melts
Cellulose is best for exterior wall insulation and cathedral ceiling. Great for high ceilings with no attic.
✓ Loose Fill Insulation
✓ Fills Gaps and Voids Around Outlets
✓ Keep Heat Out In The Summer
✓ Plant Based Cellulose Insulation
✓ Clean Green Plant Based Wall Insulation
✓ Water damage from ice melts
✓ Prevent Ice Dams & Water Damage
✓ Warmer house all winter long
✓ Cooler house in the summer
✓ Improve indoor air quality
✓ Prevent Mold Between Stud Cavities
✓ Consistent temperatures throughout the house
✓ Warmer house all winter long
✓ Cooler house in the summer
✓ Improve indoor air quality
✓ Prevent Mold Between Stud Cavities
✓ Consistent temperatures throughout the house
Closed Cell Spray Foam Outer Walls Of Your Home
Spray Foam For Your Home 2×4 Walls With Limited Space For Insulation
If your existing home’s walls are 2×4 framing instead of the newer thicker 2×6 then Spray Foam Insulation is a difference maker over traditional insulation materials.
With increased R-value and heat escape in winter and heat intrusion in summer, you can pay less every month with lower maintenance costs and live more comfortably.
With increased R-value and heat escape in winter and heat intrusion in summer, you can pay less every month with lower maintenance costs and live more comfortably.
Frequently Asked Question
Can I insulate my walls without removing drywall?
Yes, you can insulate your walls without removing drywall using a convenient “drill-and-fill” approach that adds comfort with minimal disruption.
Small, easy-to-repair holes are neatly drilled between studs so the wall cavities can be filled with blown-in cellulose or injection foam, and then the openings are sealed and finished to blend seamlessly with the surrounding wall.
It is a popular option for older homes and typically costs about $1 to $4 per square foot, making it a practical upgrade without a full remodel.
Small, easy-to-repair holes are neatly drilled between studs so the wall cavities can be filled with blown-in cellulose or injection foam, and then the openings are sealed and finished to blend seamlessly with the surrounding wall.
It is a popular option for older homes and typically costs about $1 to $4 per square foot, making it a practical upgrade without a full remodel.
How to insulate walls that are already built?
Insulating walls that are already built can be done by blowing loose-fill cellulose or fiberglass into the cavities through small access holes, creating a noticeable comfort boost with minimal disruption. The openings are neatly plugged and finished to match. With the right density and coverage, this method is a highly effective way to improve energy efficiency in existing homes.
Will wall insulation help with cold exterior walls, drafts, and uneven room temperatures?
Yes, cellulose insulation is an excellent fit for Chicago’s cold winters and humid summers because its dense coverage helps reduce air leakage and supports steady comfort through big temperature swings.
It also holds its insulating value well in extreme cold and can help manage seasonal moisture when the attic is properly ventilated.
For the best results, target an attic level around R-49 to R-60 and use professional dense-pack installation where needed to get consistent coverage and strong, long-lasting performance.
It also holds its insulating value well in extreme cold and can help manage seasonal moisture when the attic is properly ventilated.
For the best results, target an attic level around R-49 to R-60 and use professional dense-pack installation where needed to get consistent coverage and strong, long-lasting performance.
Will adding insulation cause moisture problems, mold, or peeling paint in brick or plaster walls?
No, adding insulation to brick or plaster walls does not automatically cause moisture problems, mold, or peeling paint, especially when it is installed with a moisture-smart plan.
Because insulation can make exterior masonry cooler, the goal is to manage condensation risk by supporting safe drying. Vapor-permeable materials like mineral wool, good ventilation, and the right installation density help deliver comfort and efficiency while protecting finishes.
Because insulation can make exterior masonry cooler, the goal is to manage condensation risk by supporting safe drying. Vapor-permeable materials like mineral wool, good ventilation, and the right installation density help deliver comfort and efficiency while protecting finishes.
Will wall insulation reduce street noise, alley noise, or train noise?
Yes, wall insulation can noticeably reduce street noise, alley noise, and even some train noise by adding density and damping vibration as sound moves through the walls.
High-density options like mineral wool (rockwool) or cellulose tend to perform especially well, and “drill-and-fill” is a convenient way to add it to finished walls.
For the biggest improvement, pair insulation with solid air sealing and consider upgrading key weak points like windows and doors, since sound reduction really shines when small gaps are properly sealed.
High-density options like mineral wool (rockwool) or cellulose tend to perform especially well, and “drill-and-fill” is a convenient way to add it to finished walls.
For the biggest improvement, pair insulation with solid air sealing and consider upgrading key weak points like windows and doors, since sound reduction really shines when small gaps are properly sealed.
Service Areas
Northwest Suburbs
North Shore
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