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How Much Does Insulation Save?

The main reasons most people install insulation are the high energy efficiency and savings it offers. The best answer to “how much does insulation save?” is “it depends.” Exact estimates are hard to make, but there are tools online that can help you figure out approximately how much money you can save by insulating—and of course, you can always talk to a local insulation company!

Calculating Insulation Energy Savings

Feel free to visit CIMA (Cellulose Insulation Manufacturers Association) online to calculate insulation savings. You can measure the financial impact of increasing your insulation’s performance by entering your data into the insulation calculator—the size of your house, your energy costs, etc. With the calculator, you can see what you would be saving both this year and in the future.

The Home Energy Saver™ (HES) website has another helpful savings tool. It calculates all your energy bills using your current rates and personal information, such as:

  • Where you live
  • The year your home was built
  • Whether you have a basement or not
  • The type of HVAC system you have
  • And more

After filling in your data, you’ll get back your current yearly energy costs and how much you can potentially save with upgrades.

Tips for Maximizing Savings From Insulation

Remember—there are always small things you can do to make sure you maximize insulation savings. These include:

Talking to a reputable insulation contractor: DIY insulation installation isn’t recommended. It’s best to talk to insulation professionals, who can ensure you are using the right material, using the right amount of insulation and insulating the appropriate areas of your home to gain the most energy savings.

Properly sealing your home: Air sealing and insulation go together. A home that is properly insulated but not air sealed isn’t as energy-efficient as it could be because air leaks undermine the performance of insulation. Your home needs to be both insulated and sealed for the best results.

Making sure other areas of your home aren’t thwarting your energy efficiency efforts: In addition to insulating, you should be doing other things to help maximize savings. For example, if your windows are old and leaky, you never change your air conditioner’s filters, and your home still has energy-inefficient incandescent bulbs, there’s a lot more you could be doing! There are a lot of ways to save energy, and combined with insulation, they can help you gain significant annual energy savings.

Insulation Savings

So a lot of different factors come into play when it comes to insulation savings. “How much does insulation save?” isn’t a simple, one-universal-answer kind of question. But talking to a local insulation company and using the right online tools can help you figure it out!

If you live in Chicagoland, ThermaSeal / Lakeside Insulation is the company to call if you need to insulate your home! We’ve installed insulation for homes and businesses all throughout the Chicago area. Contact us for an initial consultation and estimate, or call us at 800-836-2535!

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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