Insulation in the Attic with Skylight

When to Replace Your Home Insulation

One of the best investments a homeowner can make is getting great insulation. It maintains the interior temperature of your home, but it’ll cut down on electricity costs since you don’t have to run the heater or air conditioning constantly. However, insulation doesn’t last forever. Eventually, it will need to be replaced if you want to continue to benefit from it. If you’re not sure how old your insulation is or if it might need fixing, here are a few tips for when to replace your home insulation.


Bad News for Insulation

We’ll talk about how to recognize when your insulation needs replacing in a moment, but first, let’s discuss a few factors that can lower the lifespan of your insulation. If any of these have occurred, you’ll likely need to replace the insulation much sooner than you might typically expect. Here are a few things to watch out for:


Roof Damage

If you have any damage to the roof, like missing or broken shingles or leaks, the water has likely compromised your attic insulation. Time to inspect!



Mold can grow pretty much anywhere – including insulation. If you find mold on your insulation anywhere in the house, you should replace it soon. Not only will the insulation not do its job as well, but the mold could spread to other areas of the house.


Dirt and Dust

A buildup of dirt, dust, pet hair, or anything else can reduce the efficiency of even the best insulation.



If your home has had a fire, the insulation could be damaged, even if the house is still liveable. Replacing the insulation after a fire will ensure safety and comfort.


Old Home

If you live in an older home, it’s a good idea to check out the state of the insulation. Over time, certain types of loose-fill insulation could lose their effectiveness, so make sure your home is up-to-date.


When to Replace Insulation

There are several signs that your home insulation needs replacing, even if it doesn’t have any of the issues listed above.

  1. Interior temperature fluctuations often, despite keeping the thermostat the same.
  2. There are drafts throughout the house.
  3. It’s difficult to keep the house at your ideal temperature.
  4. Your electricity bill keeps rising, despite keeping your usage the same.
  5. The insulation looks like it’s bad shape: drooping, breaking, thinning, or dampness might be present.
  6. You find leaks and condensation constantly around the house.
  7. The presence of pests could indicate faulty insulation that allows cold air in mice, squirrels, insects, and more.
  8. Allergies may increase in the household if the insulation is dirty, dusty, or growing mold and bacteria.


If you think it’s time to replace your home insulation, the experts at Cape Cod Energy Solutions are here to help. With years of professional experience, they’ll be able to get your house properly insulated so you can enjoy lower energy costs and more comfortable home.