Utah Duct Sealing and Duct Insulation

Get up to $400 cash back


Don’t let energy slip through the cracks

Be Wattsmart and save on duct sealing and duct insulation. When energy is lost through duct surfaces, heating and cooling equipment has to work harder to make up for the loss. As a result, you could be spending too much money to maintain comfort. Duct sealing and duct insulation can cut those heating and cooling costs by 20%.

Rebates and qualifications

Equipment purchases and services Electrically heated customer rebate Electrically cooled customer rebate

Duct sealing (standalone)



Duct sealing and duct insulation



Trade ally rebates are available, click here for details, for equipment installed on April 30, 2024, or earlier click here.

Ensure the home qualifies:

  • Must be an existing single family home.

Requirements for both duct sealing (stand alone) and duct sealing and duct insulation:

  • Home must have a ducted electric heating system, heat pump or gas furnace with central air conditioning serving 80% of the homes conditioned floor area.
  • Must have a minimum of 10 linear feet of exposed ductwork located in unconditioned space.
  • All physically accessible ducts located in unconditioned spaces must be sealed.
  • Duct sealing must reduce duct leakage to the outside by 50 percent or more with a 100 CFM (Cubic Foot per Minute) minimum reduction.
  • Work must be completed by a Program-Qualified HVAC Contractor listed on the Program-Eligible HVAC Contractors List.
  • Work must be completed in accordance with the specifications outlined in the Utah Technical Specifications Manual.
  • A functioning carbon monoxide alarm is required when a combustion appliance is present within the confines of the structure.
  • Work completed must comply with all building codes and standards.

Additional requirements for duct sealing and duct insulation:

  • Pre-existing duct insulation levels may not exceed R-2 and must be replaced with at least R-8.
  • All physically accessible ducts located in unconditioned living spaces must be insulated.
  • Duct sealing and duct insulation must be performed in the same project, with insulation installed after ducts are sealed.

Additional program rules:

  • Home may qualify for either duct sealing or duct sealing + insulation, but not both.
  • Rebates are limited to one-time installations within the qualified space of the home and cannot exceed the total cost of the project.
  • Homes that have previously received a rebate through the program do not qualify for additional rebates if replaced.
  • When applying for duct sealing + duct insulation, separate contractors may perform the two services. The duct sealing contractor listed on the application will receive the trade ally rebate.
  • Submit all documents so they are received within 180 days of the qualifying service completion date.
  • If installing for a multifamily property (up to 3 units per foundation), customer must submit an application per unit. For individually owned/owner-occupied high-rise units, please contact program staff for approval. See our custom Multifamily Program for more information.

Required documents:


Electric heating is defined as a permanently installed, ducted system consisting of an electric furnace or heat pump serving as the home’s current primary heat source.

Electric cooling is defined as a permanently installed, ducted electric central air conditioner or heat pump serving as the home’s current primary cooling source. Room air conditioners and evaporative coolers do not qualify.

Non-Electric heating or cooling is defined as a heating or cooling system with gas, oil, wood heating, pellet stoves, or propane serving as the home’s current primary heating or cooling source.

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.

Rebates are associated with the most recent tariff filing approved by the Utah Public Service Commission. All rebates are subject to change with 45 days’ notice. Additional terms and conditions may apply.

Customer eligibility

Residential electric customers residing in the state of Utah who purchase their electricity from Rocky Mountain Power on rate schedules 1, 2, or 3 qualify. Landlords who own rental properties served by the company in the state of Utah where the tenant is billed on rate schedules 1, 2 or 3 also qualify for this program. You can locate your rate schedule on your bill or by calling 1-888-221-7070.

Application details

Prior to starting a project, find and contact a participating heating and cooling contractor. Note that some rebates require a qualified contractor to install your new equipment. Review the eligibility requirements, rebate qualifications and the list of required documents with your contractor before submitting your rebate application. Equipment and service work may be inspected for compliance.

Please include the following with your online application:

  • Your Rocky Mountain Power account number.
  • Digital image of your itemized receipt or contractor’s invoice.

Important details:

  • Complete and submit your online application within 180 days of installation.
  • Your rebate will be issued within 14 business days after we review and approve your application. Missing information may delay processing and delivery.
  • Please enter your service address and account number exactly as it’s shown on your bill. You can find this information in the areas indicated below.