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Where to Insulate in Your House

If you’ve determined that your energy bills are higher than normal and think you may need more home insulation, that’s the first step. It’s great, but you still need to figure out where to insulate! Fortunately, this isn’t hard at all with the help of professional insulation contractors.

If you live in the Chicago area, ThermaSeal / Lakeside Insulation are the ones to call! We can help you figure out where you need to insulate, which type to use and how much insulation you need. It doesn’t hurt, however, to know a little bit about insulation before you bring the pros in!

Where to Insulate 101

Generally speaking, pretty much all areas in your home should be insulated, including:

Where to Insulate in the Attic
The attic is one of the best places to insulate in your home, as it is one of the biggest sources of energy loss. Floors and knee walls should be insulated. For your specific situation, however, talk to insulation professionals. After all, every attic is a little different.

The best types of insulation to use for the attic are fiberglass and cellulose.

Where to Insulate in the Walls
Both the interior and exterior walls should be insulated, and installing the insulation around ductwork, piping and wiring is important too—but this requires professionals. DIY insulation projects are not recommended.

The best types of insulation to use for the walls are fiberglass, cellulose and spray foam.

Where to Insulate in the Basement
The basement holds a lot of potential for energy savings, but only if it’s properly insulated! Basement insulation can actually save you hundreds of dollars a year. Soundproofing insulation for basements is also ideal, especially if someone uses the basement as a bedroom.

The best types of insulation to use for the basement are cellulose, fiberglass and spray foam.

Where to Insulate in Crawl Spaces
If your home has any crawl spaces, they should be insulated if you want to maximize energy efficiency. Floor joists, walls and subflooring should be insulated, depending on whether the crawl space is ventilated or unventilated—and an insulation installer will be able to determine this!

The best types of insulation to use for crawl spaces are fiberglass and foam.

No matter where you insulate in your home, you’ll enjoy the benefits, namely lower energy bills. However, insulation installation also:

  • Keeps your home more comfortable year round
  • Helps prevent air leakage and moisture problems
  • Reduces noises from outside and between different rooms and levels inside the house

If you want to learn more about insulation, visit our website. Ready to get started on your Chicago home insulation installation project? Contact ThermaSeal / Lakeside Insulation today!

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.


At Thermaseal / Lakeside Insulation, we understand the role a floor plays within a building system by controlling sound and fire.

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