• 770 Industrial Drive Unit A, Cary, IL 60013
  • |Contact Us
Call Your Local Pros Today! (800) 836-2535

Where Do You Need Insulation in Your Home?

At ThermaSeal / Lakeside Insulation, we understand that keeping your home comfortable and energy-efficient is a high priority. How can you knock out two birds with one stone? The answer is simple: insulation. We can install insulation throughout your home to improve overall comfort and efficiency.

Schedule your home energy audit or insulation consultation in the Chicagoland area today by filling out the form in the sidebar or calling 800-836-2535.

Where You Need Insulation

On a general level, insulation should be installed in all areas of your home:

Where to Insulate: Attics

The attic is one of the best places to insulate in your home because it can be a huge source of energy loss. Knee walls (vertical walls with attic space behind them) and floors need to be insulated. Knee walls tend to be very leaky and energy-inefficient. The ceiling should also be insulated with foil, which helps your roof reflect, rather than absorb, heat from the sun. This keeps your home a lot cooler and more comfortable.

Best insulation to use: radiant barrier (reflective); fiberglass blanket system; cellulose

Where to Insulate: Basements

Don’t overlook the foundation of your home when it comes to insulation installation. Insulating the basement can save you a lot of money annually—and insulating the walls can help your home stay more comfortable year round. For sound control purposes, you can insulate the basement ceiling.

Best insulation to use: fiberglass; cellulose; spray foam

Where to Insulate: Crawl Spaces

If your home has any crawl spaces, it’s important that you insulate them. Crawl space insulation can help reduce air leaks, control moisture problems and prevent issues like frozen pipes, soil vapor intrusion and more. The walls should be insulated in unventilated crawl spaces. For ventilated crawl spaces, insulating the subflooring and floor joists is more important. When insulating a crawl space (ventilated or not), moisture control is vital—air sealing is required.

Best insulation to use: fiberglass and spray foam

Where to Insulate: Walls

Both interior and exterior walls should be insulated (as a professional insulation company will tell you). Behind your interior walls, there are wires, pipes and ductwork. It may be recommended to insulate around these too. In fact, ducts are almost always insulated.

Best insulation to use: fiberglass; cellulose, spray foam

Schedule Your Insulation Consultation Today

Maybe just your attic needs more insulation, or maybe you need to insulate all these areas. You’ll need to talk to an insulation company to find out the specifics. If you’re in the Chicago, Illinois area, contact ThermaSeal / Lakeside Insulation today!

Contact us online or by phone at 800-836-2535 to schedule your appointment!

Products We Install

Our team installs both batt and blown-in fiberglass insulation.


Help prevent mold and excessive moisture infiltration in homes you build with our waterproofing services.

Are You Sure?
Stay on Page
You are about to leave this ThermaSeal / Lakeside Insulation and enter a third-party site. ThermaSeal / Lakeside Insulation and Installed Building Products have no control over, and accept no liability, obligation, or responsibility for, the contents or performance of other websites. Any such link does not constitute an endorsement or any representation regarding, the linked website, its content, its owner, its performance, its owner’s products or services, or any forward-looking statements found in.
Leave Page
Stay on Page