Blow-In Attic Insulation for Homes in Illinois and Northwest Indiana
Stop heat loss where it matters most. Upgrade your attic insulation.
Blow-in insulation is one of the most effective, affordable upgrades for older homes. Our team at Assured Insulation Solutions installs high-performance cellulose or fiberglass insulation to create a dense, seamless thermal barrier in your attic floor without disrupting your living space.
Whether you're dealing with under-insulated rafters, old batting, or open gaps around recessed lights and framing, we’ll seal and insulate it right.
Why homeowners choose Assured for blow-in attic insulation
BPI-certified crew with deep experience in attic performance and building science
High-R-value cellulose or fiberglass options based on your home’s needs
Air sealing included to stop leaks before insulation is installed
Quick, clean installation that won't disrupt your daily routine
Ideal for both vented and unvented attics in older homes
Local expertise across Illinois and Northwest Indiana—no subcontractors
Real results: lower heating and cooling bills, quieter rooms, better comfort
FAQ – Common questions about blow-in attic insulation
What is blow-in insulation made of?
Is blow-in better than batt insulation?
Can you add blow-in insulation over existing material?
How long does the installation take?
Will attic insulation reduce energy bills?
Can it help with rooms that are too hot or too cold?
Is it eligible for rebates or incentives?
Blow-in attic insulation across Illinois and Northwest Indiana
In homes across Illinois and Northwest Indiana, especially those built before modern energy codes, attic insulation is often lacking or outdated. From classic bungalows in Oak Lawn to ranch-style homes in Valparaiso, under-insulated attics are a common culprit behind uneven comfort and high utility bills.
At Assured, we’ve helped thousands of homeowners in communities like Frankfort, Joliet, Crown Point, Tinley Park, and Naperville upgrade their attics with precision-blown insulation. Whether your attic is completely exposed or already has old fiberglass, our certified team knows how to air seal and insulate effectively without turning your home into a job site.
Explore related insulation and performance services in Illinois and Northwest Indiana
Blow-in attic insulation is just one part of a whole-home energy strategy. At Assured, we offer a full suite of performance upgrades designed to work together for maximum comfort and efficiency.
Related services we offer:
Blow-in attic insulation
Aerosealing
Heat pumps
New cooling system installation
AC Repair
Cooling system replacement
Ductless Solutions
New heating system installation
Heating repair
Heating system replacement
Home Energy Assessments and Audits
Painting & Drywall
Every service begins with a free inspection and is backed by our satisfaction-first guarantee. We’ll walk you through the options and build a plan that makes your home quieter, healthier, and more efficient top to bottom.
How blow-in insulation improves attic performance
Attics are the top escape route for heated and cooled air. Without proper insulation, your HVAC system works overtime and you still end up with drafty rooms, hot ceilings, and uneven comfort.
Blow-in insulation solves this by filling every cavity and covering joists with a dense, seamless layer. It reduces conductive heat loss in winter and blocks radiant heat in summer, keeping your living space more stable year-round.
We combine this insulation with targeted air sealing to stop leaks around recessed lights, ductwork, and ceiling penetrations. The result: a more efficient building envelope, lower energy bills, and a home that stays comfortable no matter the season.
Risks and home impacts of poor attic insulation
Inadequate attic insulation does more than raise energy bills it can quietly damage your home’s comfort, structure, and efficiency over time.
Moisture buildup and roof damage
Without insulation and air sealing, warm indoor air rises into a cold attic, condenses, and creates moisture. Over time, this leads to mold, wood rot, and even ice dams that can damage your roof.
Uneven comfort and HVAC strain
Poorly insulated attics create rooms that are too hot in summer and too cold in winter. Your heating and cooling systems run longer, increasing wear and shortening lifespan.
Higher energy costs
Up to 25% of your home’s energy can be lost through an uninsulated attic. That translates into higher monthly bills and wasted heating and cooling every season.
Reduced home value and indoor air quality
Drafty rooms, noisy ducts, and air leaks affect resale potential and comfort. Poor insulation also allows outdoor dust, allergens, and pollutants to circulate freely inside.
Sealing and insulating your attic with blown-in insulation is one of the smartest investments you can make in home performance. It protects your house, your wallet, and your well-being.
Why professional installation is essential for blow-in insulation
Attic insulation might seem simple, but getting it right takes precision, building science, and a plan tailored to your home’s unique layout.
Correct R-value matters
Illinois and Indiana homes need specific insulation depths to meet energy code and perform year-round. We measure your current levels, assess attic conditions, and install exactly what’s neededm no guessing.
Air sealing comes first
Insulation without air sealing is only half the solution. We locate and seal hidden gaps before blowing in material, preventing air leaks that sabotage efficiency.
Avoiding over- or underfilling
Too little insulation does nothing. Too much can block attic ventilation and trap moisture. Our trained crew installs insulation evenly and to spec, avoiding common DIY pitfalls.
Safe, code-compliant installation
We protect recessed lighting, baffles, and electrical systems during installation, and we ensure that airflow and fire safety aren’t compromised.
Guaranteed results
Every attic job is backed by our warranty. We inspect it with you when complete, show you the coverage, and ensure you feel the comfort difference right away.
Don’t wait, schedule your attic inspection today
If your upstairs feels too hot in summer, too cold in winter, or your energy bills are climbing, your attic might be to blame. Most insulation problems go unnoticed until they start costing you real comfort and money.
At Assured, we start with a free attic inspection, no pressure, no obligation. Our certified team checks insulation depth, air leaks, and moisture risks, then shows you exactly what needs to be done (and why).
Whether your insulation is old, missing, or just not performing, we’ll build a solution that works for your home, your budget, and your comfort goals.
Contact Information
Assured Insulation Solutions, LLC
22530 Center Road, Frankfort, IL 60423
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