Department of Energy

Sealing Your Home

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Caulking can reduce heating and cooling costs and improve comfort in your home.

Caulking can reduce heating and cooling costs and improve comfort in your home.

Air leakage, or infiltration, occurs when outside air enters a house uncontrollably through cracks and openings. Properly air sealing can significantly reduce heating and cooling costs, improve building durability, and create a healthier indoor environment. In addition to air sealing, you'll also want to consider adding additional insulation and moisture control and ventilation strategies to ensure your home is comfortable and efficient.

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Tips for saving energy and money during the spring and summer.

Insulation and Air Sealing Products and Services

Find product information and locate professional services for insulation and air sealing.

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