Attention Pacific Power customers: With the recent signing of the American Taxpayer Relief Act of 2012, up to a $500 Tax Credit can be applied to personal federal income tax for qualified home efficiency improvements made in 2011, 2012, and 2013. To apply for a tax credit, you will need Form 5695. For a complete list of available tax credits, visit the Database of State Incentives for Renewables & Efficiency.

Act now, save more! For a limited time only, receive up to $325 for duct sealing and duct insulation.

Seal and insulate your ducts and you could start lowering your energy bills today.

Heating and cooling can account for more than half of your home's energy consumption, but you could be losing as much as 30 percent of that energy through leaky and uninsulated ducts. When energy is lost through duct surfaces heating and central air conditioning equipment have to work harder to make up for the loss. As a result, you're spending too much money for a comfortable home.

When you seal your ducts and add duct insulation you can increase the efficiency of your entire system, saving you money and improving your comfort in every room.

Energy Saving Benefits

  • Increase the efficiency of your heating and cooling system by 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

Getting Started

Prior to starting a project, find a contractor using the Washington Participating and Program Qualified Contractors list. Note that select incentives must be completed by a Program Qualified Contractor. Review the Incentive Application with your contractor to determine eligibility requirements, incentive qualifications and review the list of required documents to submit for an incentive.

Incentive Application and required documents must be received within 90 days of the purchase or completed installation. Incentive checks are issued within 45 days of receipt of the completed and approved Incentive Application. Incentives are not to exceed the purchase price of the equipment or service. Equipment and service work may be inspected for compliance. Incentives are subject to tariff approval 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.

Available Incentives

Equipment Purchases and Services
Customer Incentive
Contractor Incentive

Duct sealing and duct insulation

For homes with electric heating
$325 $50

Duct sealing and duct insulation

For homes with electric cooling
$100 $50


Duct sealing and duct insulation
  • Work must be completed by a Program Qualified Contractor
  • Ducts must be located in an unconditioned space
  • Both services must be performed at the same time with insulation installed after the ducts are sealed
  • Program Qualified Contractor is required to perform CAZ testing, duct leakage testing, seal ducts with mastic and insulate ducts after sealing
  • Duct sealing must reduce duct leakage to outside by 50 percent with a 100 CFM minimum reduction
  • Pre-existing insulation levels must be less than or equal to R-2
  • Must add at least R-8 insulation to ducts
  • Duct Sealing and Duct Insulation Worksheet Required
  • Incentive application and required documents must be received within 90 days of completed service

For homes with electric heating:
Home must have a permanently installed ducted electric heating system serving at least 80 percent of the living space. (Examples of qualified electric heating systems: ducted electric furnace or ducted heat pump. Electric baseboard, cadet wall heaters and space heaters do not qualify).

For homes with electric cooling:
Home must have a permanently installed ducted electric central air conditioner serving at least 80 percent of the living space when heated by a non-electric heating system such as gas, oil or propane.

Conditioned vs. unconditioned space - clarification notes
  • For the most part, basements are conditioned spaces. Basements are not usually thermally isolated from the main living area and contain space conditioning ducts. Basements are also used for storage and frequently contain laundry facilities and other living spaces. Ducts serving unfinished basements are not always equipped with dedicated supply registers, although single registers at plenums are not unusual.
  • An unconditioned basement would have these properties: Thermally isolated from the main floor by insulation in the floor. Insulated, weather-stripped door (if above floor plane) and insulated stairwell walls where thermal plane penetrates floor, air sealed (caulked, foamed penetrations) wiring plumbing, sealed duct penetrations and sealed, insulated ducts. No supply registers.
  • While a crawl space is unconditioned space, the floor must be insulated prior to or at the same time ducts are sealed and insulated to thermally isolate the crawlspace. Failure to do this will increase the heating load of the home and potentially cause comfort issues.
Need help?

    These helpful forms can assist you in the process of submitting your application materials.

  • Review the list of HVAC required documents to submit with an incentive application
  • Take a look at the program-accepted proof of payment options