Attic Insulation in Chicago

Improve Home Comfort
Lower Your Energy Costs

Upgrade Your Attic Insulation

A hot second floor, cold rooms, drafts, and rising heating or cooling costs can all be signs that your attic is not performing as well as it should. In some homes, there is not enough insulation. In others, the existing material is uneven, aging, or covering air leaks that were never sealed.

We provide attic insulation throughout Chicago and the surrounding suburbs using a process that starts from the attic floor up. We remove the existing insulation, air seal accessible gaps and penetrations, then install new blown-in fiberglass insulation to create a more complete thermal layer.

Before After Attic Insulation In Chicago Before Attic Insulation Project in Chicago After Photo

Signs Your Attic Insulation May Need Attention

Many homeowners first notice a comfort problem long before they ever look inside the attic. Uneven temperatures, cold rooms, and an upstairs that becomes difficult to cool are often what lead to an insulation inspection.

Common signs include:

  • Hot or cold upstairs rooms
  • Large temperature differences between floors
  • High heating or cooling costs
  • Drafts or cold areas near ceilings
  • Thin, uneven, or deteriorated attic insulation
  • Attic floor joists visible above the insulation
  • Ice dam problems during winter

These symptoms do not automatically mean you simply need more insulation. An inspection helps us look at the existing material, attic conditions, and accessible air leaks before recommending the right work.

Our Attic Insulation Process

We do not install new insulation directly over the existing material. Removing the old insulation gives us access to the attic floor and allows us to address problems that might otherwise stay hidden beneath another layer.

1. Inspect the Attic

We evaluate existing insulation, coverage, attic access, visible gaps, and other factors that may affect comfort or energy performance. We also perform a blower door test to identify air leaks. 

2. Remove Existing Insulation

We remove the old insulation to expose the attic floor and create a clean starting point for the project. We believe putting new insulation over the old leads to more problems in the future.

3. Air Seal Accessible Openings

We use spray or expanding foam to seal accessible gaps and penetrations between the living space and the attic. This work is completed before new insulation goes in.

4. Install Blown-In Fiberglass

Once the attic is prepared and air-sealed, we install blown-in fiberglass insulation across the attic floor. We may occasionally use fiberglass batts where the structure calls for them.

Blown-In Fiberglass and Air Sealing Work Together

Insulation and air sealing do different jobs. Fiberglass slows heat transfer through the attic, while air sealing helps limit unwanted air movement through gaps and penetrations.

That is why we address accessible air leaks before installing the new fiberglass. If those openings are buried under new insulation, they become much harder to reach later.

Blown-in fiberglass also works well in existing attics because it can be distributed around framing, wiring, and other irregular areas. Proper coverage and installed depth are important because they affect the attic’s overall R-value and thermal performance.

Attic Insulation Services In Chicago

Attic Insulation for Chicago Homes

Chicago homes experience long heating seasons, hot summers, and large temperature swings throughout the year. The attic is one of the main boundaries between the conditioned living space and outdoor temperatures, so weak insulation or air leakage can have a noticeable effect on the rooms below.

A properly insulated and air-sealed attic can help reduce heat movement through the ceiling and make indoor temperatures easier to maintain. The right insulation level depends on the home, attic configuration, and project conditions, which is why we evaluate the attic before recommending a scope of work.

Reduce energy waste by up to 15%

Minimize temperature swings between floors

Improve indoor air comfort

Support long-term energy savings

Energy Savings

Common Attic Insulation Mistakes

Even with the best intentions, homeowners can make mistakes during an attic insulation project that compromise energy efficiency and indoor air quality. One of the most common errors is neglecting to properly seal air gaps and cracks in the attic space. Without thorough air sealing, even the best insulation can’t prevent energy loss, leading to higher utility bills and less comfort.

Choosing the wrong type of insulation for your home’s specific needs and climate is another frequent misstep. For example, using vermiculite insulation in areas with moisture problems can result in damp insulation and potential mold growth. Additionally, removing old insulation without proper precautions can expose your family to asbestos and other health hazards, especially in older homes.

Failing to inspect for signs of moisture or mold before starting insulation work can also undermine your efforts, as these issues can quickly degrade new insulation and harm indoor air quality. To avoid these pitfalls, it’s wise to partner with a reputable, professional insulation company. Checking reviews on trusted platforms like Angie’s List and the Better Business Bureau can help you find a company known for quality work and customer satisfaction. By relying on experienced professionals, homeowners can ensure their insulation project delivers lasting energy efficiency, comfort, and peace of mind.

Why Choose Perma-Seal for Attic Insulation?

Our attic insulation process is built around preparation, not simply adding more material. We remove the existing insulation, expose the attic floor, complete accessible air sealing, and then install new blown-in fiberglass.

Our team at Perma-Seal has served homeowners throughout Chicagoland for decades, and our broader experience with attics, basements, crawl spaces, and other parts of the home helps us look beyond insulation depth alone. We want to understand what is contributing to the comfort problem before recommending the work.

We also keep our insulation services focused on the materials and applications we actually install, which makes it easier to provide a clear scope and explain exactly what the project includes.

PS Insulation Service Area

Serving Chicago & Surrounding Areas

Perma-Seal Insulation proudly provides attic insulation services throughout Chicago and the surrounding suburbs. Our team understands local building styles, weather patterns, and energy code requirements so your insulation system is built for where you live.

Schedule Your Free Attic Insulation Evaluation

Attic insulation isn’t just about comfort; it’s about protecting your home and controlling long-term energy costs.

If you’re searching for attic insulation in Chicago, trust Perma-Seal Insulation to deliver professional results backed by experience. Don’t hesitate to reach out with any questions about attic insulation or the evaluation process—our team is here to help. Please ensure safe access to your attic is available for our evaluation appointment.

Start Improving Your Home Comfort Today

Connect with our insulation experts and explore how we can help you improve home comfort and save on energy bills. Contact us to schedule a free insulation inspection for your home today.

Attic Insulation FAQs

Yes. We remove the existing attic insulation before installing new blown-in fiberglass. This gives us access to the attic floor and allows us to address accessible air leaks before they are covered again.

Our primary attic insulation material is blown-in fiberglass. Fiberglass batts may occasionally be used where appropriate for the construction, but we do not offer batt insulation as a standalone service.

Yes. Air sealing is part of our attic insulation process. We use spray or expanding foam to seal accessible gaps and penetrations before installing the new insulation.

The right insulation level depends on the attic, existing conditions, and the requirements that apply to the project. During an inspection, we can evaluate the current insulation and explain what level makes sense for your home.

Poor attic insulation or air leakage can contribute to an uncomfortable upper floor, especially during summer. However, those symptoms can have more than one cause, which is why we inspect the attic before recommending insulation work.

Project cost can vary based on attic size, accessibility, the amount of existing insulation that must be removed, air-sealing needs, target insulation level, and other attic conditions. We provide an estimate after evaluating the home so the scope reflects the actual work required.

Some older insulation materials may require special handling before they are disturbed. If we find material that raises a concern, it should be properly identified before the project moves forward.

See What Our Customers Think of Our Services

Attic Insulation

Nick L was courteous, communicative and very efficient in diagnosing my issues in my attic, very glad he came by. Permaseal is one of the best out there.

Rated 5 out of 5 stars
Leo

Attic Insulation

The experience was amazing, the crew that removed and replaced the attic insulation couldn’t be more professional, neat and clean. When they were done you didn’t even know any work was completed.
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Rated 5 out of 5 stars
Tim S.

Attic Insulation

Dave S. Went above and beyond when we had called Permaseal out for an attic insulation inquiry. Out by of the 5 companies we called, he was the most thorough in explaining
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Rated 5 out of 5 stars
Emily G.