Duct Sealing

Important! Incentives in the Home Energy Savings program have changed. Please see the Qualifications section below for more information.

Seal the leaks for big savings on your electricity bill.

Often concealed in walls and between floors, your home’s ducts are easy to overlook. Poorly sealed ducts can leak heated or cooled air, reducing your system’s efficiency by as much as 20 percent and unnecessarily increasing your electricity bill. If you have high summer or winter utility bills, rooms that are difficult to heat or cool, or stuffy rooms that never seem to get comfortable, leaking ducts may be to blame. By identifying and sealing leaks, you can make your home more comfortable and save money on your electricity bill.

Energy Saving Benefits

  • Increase the efficiency of your heating and cooling system by up to 20 percent
  • Save money by using less electricity to heat and cool your home

Environmental Benefits

  • Promote clean air by using less electricity to maintain a comfortable home
  • Avoid harmful greenhouse gas emissions through reduced electricity use


For purchases before April 12, 2010

  • Up to $150 customer incentive and $50 Program Qualified contractor incentive is available for duct sealing
  • Incentive Application must be received by July 10, 2010 to be eligible to this incentive amount

For purchases on or after April 12, 2010

  • The duct sealing incentive will no longer be available on or after April 12, 2010 due to a change in California Title 24
  • Duct sealing has become a basic requirement for homes in California whenever the heating and cooling system is upgraded

Duct sealing incentive is available on existing equipment and applies to ducts in an unconditioned space. An unconditioned space is any space outside of the thermal envelope of the building that is not intentionally heated for occupancy. The home must have an electric heating system or ducted unitary cooling equipment serving 80 percent of the floor area. Duct leakage to outside must be reduced by 50 percent (minimum 100 CFM).

Work must be completed by a Program Qualified Contractor. To find a Program Qualified Contractor please use our list of California Participating and Program Qualified Contractors.

Prior to starting work, review the applicable Incentive Application with your Program Qualified Contractor to ensure incentive compliance. Incentives are limited to one duct sealing per duct system, for a maximum of two duct systems, per qualifying household. Incentives are not to exceed the purchase price of the equipment or service. Work may be inspected. Please see Incentive Application for a list of required documentation and additional terms and conditions. Incentives are subject to change and may change with 45 days notice. Additional terms and conditions may apply.

Visit our Frequently Asked Questions page for questions regarding contractors or how to receive your incentive.




Incentives for New Appliances

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