Maintenance Guides / HVAC & Air Quality

Visual ductwork inspection

Difficulty: moderateTime: 45 minsEst. Cost: $15 - $30

Why it matters

Leaky ducts can lose up to 30% of your heated or cooled air before it ever reaches your living space, skyrocketing your energy bills.

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How to do it

  • 1

    Turn the HVAC fan on and feel for air escaping at ductwork joints.

  • 2

    Seal any leaks found with mastic sealant or foil HVAC tape.

  • 3

    Never use standard cloth duct tape on HVAC ducts.