Commercial and Residential Insulation Contractor in Northbrook, IL
Green Attic Insulation provides Northbrook homes, commercial buildings, and industrial facilities with advanced insulation and remediation solutions that improve energy efficiency and support long-term building performance.
Request a Quote Today
Why Choose Green Attic?
With over 15 years of serving Chicagoland homes and buildings, we provide:
- Full-service insulation solutions
- Licensed and certified technicians
- Immediate rebate opportunities
- Healthier indoor air quality
- Clear pricing and strong warranties

EPA Lead Safe Certified
OSHA Certified

PHS Environmental

BBB Accredited

Nextdoor Recommended

BPI Licensed

NAHB Member

EPA Certified

ASHI Certified Inspector
HomeAdvisor Approved

Angie's List Verified

Yelp Rated
Our Comprehensive Insulation Services

Spray Foam Insulation
Northbrook, IL

Cellulose Insulation
Northbrook, IL
Our Proven Process
Step 1: Free Energy Audit
Step 2: Customized Plan
Step 3: Professional Installation
Step 4: Results
Frequently Asked Question
How do you blow insulation into walls?
Start by drilling holes at the top of each wall cavity. Next, insert the insulation hose into these holes. As you fill the cavity, gradually pull the hose out to ensure even distribution of the insulation material. Maintain a steady pace while filling to prevent blockages. Continue filling each cavity until you encounter resistance, indicating that the space is fully insulated.
What is the best type of insulation for a basement ceiling?
The optimal choice for basement ceiling insulation is closed-cell spray foam. Key to basement insulation is controlling moisture, and closed-cell spray foam excels by providing a robust water vapor barrier.
How thick is R30 insulation?
The thickness of R30 insulation is typically 9.5 inches. This measurement helps ensure that the insulation provides the intended thermal resistance, often used in various residential and commercial building applications to enhance energy efficiency.







