Frequently Asked Questions

Open cell spray foam is lighter and more flexible, ideal for interior walls and soundproofing, while closed cell is denser and provides superior moisture control and structural strength. At Windy City Insulation, we help Northern Illinois homeowners choose based on climate needs and application area.

Blown-in insulation uses cellulose or fiberglass materials that are pneumatically installed into attic spaces, allowing even coverage in hard-to-reach areas. This method fills gaps effectively and is ideal for retrofit projects in existing Northern Illinois homes.

You should remove old attic insulation when it's damaged, contaminated, compressed, or severely outdated and no longer performing. Removal prepares the attic for new insulation and restores proper air sealing effectiveness during energy upgrades.

Yes, spray foam insulation is especially effective for Northern Illinois climates with cold winters and hot summers. It reduces air leakage, controls moisture, and improves thermal performance, helping stabilize indoor temperatures year-round.

Fire stop air sealing involves sealing penetrations and gaps around wires, pipes, and structural openings to prevent air leakage and improve fire safety. At Windy City Insulation, we incorporate fire stop air sealing into residential and commercial insulation projects.

Crawlspace encapsulation controls moisture, reduces drafts, and protects flooring systems, which improves indoor air quality and lowers heating and cooling costs. It's a common upgrade for older Northern Illinois homes with vented or damp crawlspaces.

Insulating basements reduces cold floors, eliminates drafts, and minimizes moisture-related issues while improving overall home comfort. At Windy City Insulation, we often pair below-grade insulation with air sealing for long-term performance in Northern Illinois climates.

Yes, proper insulation reduces heat loss in winter and heat gain in summer, which lowers heating and cooling costs. Homes with upgraded attic, wall, or crawlspace insulation typically see noticeable reductions in monthly energy bills.

The biggest mistake is leaving old, compressed, or insufficient insulation in place without upgrading. This limits thermal performance and allows air leakage, reducing comfort and increasing energy costs over time.

Soundproofing insulation absorbs and dampens sound vibrations between rooms, reducing noise transfer. Open cell spray foam and specialized blown-in materials are commonly used for interior soundproofing applications in homes and commercial spaces.

Yes, spray foam insulation is safe when installed by trained, fully insured professionals using proper equipment and ventilation. At Windy City Insulation, we follow industry safety standards and focus on precision installation for homeowners across Northern Illinois.

During a free insulation consultation, the contractor assesses current insulation performance, identifies air leaks and heat loss, and provides clear recommendations tailored to your building and budget. At Windy City Insulation, we focus on no-pressure guidance and long-term energy savings.