Reduce Heat Loss Through Your Roof

Attic insulation installation for year-round comfort in Naperville, Illinois

When your attic is under-insulated, heat escapes through the roof in winter and radiates down into your living space in summer. Homes in Naperville built before updated energy codes often have insulation that has settled, compressed, or been disturbed during storage or utility work, which means your heating and cooling system runs longer than it needs to.

Windy City Insulation installs attic insulation to reduce heat loss and help stabilize indoor temperatures throughout the year. We assess your existing insulation depth, identify gaps or compression, and add material to bring your attic up to recommended R-values for Northern Illinois. This service is designed to perform during seasonal extremes when outdoor temperatures swing between below freezing and above ninety degrees.

Get in touch today to schedule a free attic insulation estimate in Naperville.

What changes after your attic is insulated

We measure your current insulation depth and distribute new material evenly across your attic floor in Naperville, filling in low spots and covering areas where insulation has been moved or compressed. Blown-in cellulose or fiberglass is typically used to achieve consistent coverage around framing, wiring, and ductwork.

After installation, your upstairs rooms will feel more stable in temperature, and your furnace or air conditioner will cycle less frequently. You may also notice fewer cold spots near exterior walls and less ice buildup along the roof edge during winter, which happens when heat escapes through the attic and melts snow unevenly.

We also install baffles at the eaves to maintain airflow from soffit vents and prevent insulation from blocking ventilation channels. This service does not include roof repairs or ductwork modifications, but it does prepare your attic to hold conditioned air more effectively once the thermal barrier is improved.

What to expect when planning attic work

Homeowners usually ask how much insulation they need, whether their attic requires preparation, and how long the installation takes. Below are answers to the questions we hear most often during consultations.

How much attic insulation do homes in Naperville need?
Most homes should have insulation depths that reach R-49 to R-60, which translates to around sixteen to twenty inches of blown-in material depending on the product used. We measure your current depth and recommend how much to add.
What happens to the insulation that is already there?
We leave existing insulation in place unless it is damaged, wet, or contaminated. New material is installed on top to increase the total R-value and fill in gaps where coverage is thin or uneven.
How long does attic insulation installation take?
Most attic insulation projects in Naperville take half a day to a full day depending on attic size and access. We work from outside through a hose fed into the attic, so disruption inside your home is minimal.
What should I do to prepare my attic before installation?
You should remove any stored items from the attic floor and make sure the access hatch is clear. If your attic has recessed lights or unsealed penetrations, we can identify those during the estimate and recommend air sealing if needed.
Why does attic insulation matter in Northern Illinois?
Seasonal temperature swings in this region put more demand on heating and cooling systems, and attics are the primary location where conditioned air escapes. Adding insulation reduces that loss and makes your home more comfortable year-round.

Windy City Insulation is a fully insured contractor serving Naperville and surrounding areas, and we focus on clean, effective installations that improve thermal performance without creating ventilation problems. Contact us to schedule your attic insulation consultation.