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Custom Insulation Boston Worcester Blog

Should You Remove Old Insulation Before Adding New Insulation?

26 June 2026

Custom Insulation Company, Inc. - Should You Remove Old Insulation Before Adding New Insulation?

Many homeowners assume that adding more insulation is all it takes to improve energy efficiency—but that's not always the case. In some situations, removing old insulation first is the best way to ensure your new insulation performs at its highest level.

Old insulation may need to be removed if it has:

  • Water damage or mold growth
  • Pest infestations or rodent droppings
  • Smoke or fire damage
  • Excessive dirt, dust, or contaminants
  • Lost its effectiveness due to age or compression

If your existing insulation is clean, dry, and still in good condition, it may be possible to install new insulation over it, depending on the material and your home's needs.

At Custom Insulation Company, Inc., we evaluate your current insulation before recommending the best solution. Whether your home needs insulation removal, replacement, or an upgrade, our team can help improve your comfort and energy efficiency year-round.

Not sure what condition your insulation is in? Contact Custom Insulation Company, Inc. for a professional assessment and expert recommendations.

Insulation helps keep your house cool in the summer!

Custom Insulation Company, Inc. BBB Business Review