Energize- single family homes
King County's Energize program helps eligible homeowners and renters access energy-efficient low- or no-cost heat pumps and other upgrades.
If you are a Duvall area resident with natural gas heating, you may be eligible for a free heat pump and other home upgrades.
Additional Program Offerings

In addition to King County's Energize program for Single Family Homes, King County collaborates with Kitsap, Pierce, and Snohomish Counties on programs for multifamily homes, community spaces, and local governments. Learn more about these programs.
About King County Energize for single family homes
King County’s Energize program installs heat pumps and other home efficiency upgrades in low and moderate income homes in King County. Eligibility is based on income and geographic boundaries as set by funding partners.
The Energize program aligns with King County’s commitments in the Strategic Climate Action Plan (SCAP):
- Energize prepares for the impacts of climate change by ensuring more people have access to cooling on hot days and heating on cold ones.
- Energize advances energy justice and reduces energy burdens in frontline communities – those communities that will experience the earliest and most severe climate impacts.
- Energize reduces greenhouse gas emissions by replacing inefficient gas and oil heating systems with cleaner electric heating and cooling.
Testimonials
Energize has served over 250 households since 2024 and is grateful to clients that have enrolled in the program! Hear from some of them about the impact it has made:
"We cannot be happier with the King County Energize program. The cost savings for those of us who are elderly and with low incomes is truly a blessing. Thank you so much."
-Howard and Donna Briggie

Howard Briggie with his new heat pump.
Heat pumps are highly efficient heating and cooling systems that move hot air from one place to another. They've been around for 50+ years and are now the preferred heating and cooling system in Asia and much of Europe.
If you have a refrigerator, you already have heat pump technology in your home.
Ductless heating systems can save 25-50% in heating costs over traditional electric systems. They can save even more compared to oil heating systems.
Apply for Energize
Energize program eligibility
The Energize program is open to owners or renters of single-family homes that have broken primary heating systems in King County except if the home is located in any of the following cities:
- Seattle
- Shoreline
- Bellevue, Issaquah, Kirkland, Redmond, Sammamish, and Mercer Island
Low-income households with broken fossil-fuel heating systems may sometimes be considered for consideration. Please contact the Energize program to request an application if you meet this description.
- Email: energize@kingcounty.gov
- Phone: 206-263-3003
Note: The Energize Program is currently accepting new applications for a pilot program in Duvall only. Please visit our Duvall Pilot webpage for more information.
Please sign up for program updates.
Income eligibility
In order to qualify for Energize, the combined income for all adults living in the home must be at or below the following amounts:
| If your household size is: | You may be eligible for full-cost coverage if your income is: | You may be eligible for partial-cost coverage if your income is: |
| 1 | Less than $81,700 | Less than $138,120 |
| 2 | Less than $93,350 | Less than $157,860 |
| 3 | Less than $105,000 | Less than $177,600 |
| 4 | Less than $116,650 | Less than $197,280 |
| 5 | Less than $126,000 | Less than $213,120 |
| 6 | Less than $135,350 | Less than $228,900 |
| 7 | Less than $144,650 | Less than $244,680 |
| 8 | Less than $154,000 | Less than $260,460 |
Funding and partners
Energize is supported with funding from Washington’s Climate Commitment Act (CCA), including funds administered by Puget Sound Energy (PSE).
The CCA supports Washington’s climate action efforts by putting cap-and-invest dollars to work reducing climate pollution, creating jobs, and improving public health.
Information about the CCA is available at www.climate.wa.gov.
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