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How Often Should You Replace Insulation?

Right now, holidays and travel plans are probably foremost on your mind but soon January will roll around and you’ll have plenty of time to think about your home! Thinking of ways to save money? Start by insulating! Has it been years since you’ve installed new insulation? If you’ve lived in your home for more than 10 years and have never touched the insulation, it may be time for replacement.

How often should you be replacing your insulation?

Do You Need New Insulation?

Insulation is manufactured to last a very long time and can perform effectively for years. However, there are a number of different occurrences and instances that may expedite or necessitate a replacement:

  • Settling. When your insulation is first installed, it’s laid to fill all of the space it needs to effectively, but due to the nature of the product, it begins to settle a bit over the first year. This may end up leaving areas exposed, causing a need for replacement or addition.
  • Outdated material. If you’re living in, or have recently purchased an older home, it’s a good idea to have the insulation checked, if not outright replaced. Old insulation is often worn to the point of near uselessness, and particularly so for the older materials of the past (such as cotton or wool, which are rarely used anymore).
  • Mold or mildew damage. Fungal growth is uncommon but possible in insulation, particularly if the humidity is too high in the places your insulation resides. These situations can rapidly decay and destroy your insulation, and a replacement should be done immediately.

Generally, if you’ve noted the presence of pests, mold, rodents or moisture, or you’ve seen a spike in your heating and cooling costs, it’s a good idea to consider replacement. An insulation contractor will come out and assess your situation and recommend the right solutions.

Insulation Replacement in Minneapolis-Saint Paul

While there is no perfect, single right answer, we at Metro Home Insulation can offer you our expertise and experience to help you save money and live comfortably all year long in the Minneapolis and St. Paul, Minnesota areas. If you think your insulation may be in need of a professional assessment, contact us today!

Products We Install

We install blown and batt fiberglass in homes and buildings.


Environmentally friendly and effective, cellulose works well in homes and buildings.

Spray Foam

Our team installs energy-efficient spray foam insulation to keep homes and buildings more comfortable.


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

Insulation Removal

Metro Home Insulation provides home insulation removal services.

Air Sealing

We include air sealing in our insulation projects to help maximize your energy efficiency.

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