weatherization

weatherization

Weatherization programs can reduce energy cost burdens, facilitate the transition to clean energy, reduce peak demand on the electric grid, and improve the health and safety of residents.

IMPACT AREAPublic health, affordability, resilience, climate mitigation, shelter, safety, green jobs
TOPICHousing, utility bills
REGIONState, Federal
AFFORDABILITY PATHWAYDecarbonization
OVERSIGHTState social service agencies, energy offices
POLICY MECHANISMLegislation

Challenge

The U.S. housing stock has a median age of 44 years, higher than at any other time in U.S. history.1 Over half of homes pre-date 19802, when residential energy efficiency standards were less prevalent.3 Not only is older housing stock typically less energy efficient, but it can also be expected to have a greater degree of repair needs. According to 2017 American Housing Survey data, 33.6% of owner-occupied and 39.5% of renter-occupied homes had at least one repair need. Of these homes, 85.5% were built before 1970. The estimated repair needs averaged nearly $3,000. The most common repair needs were structural (e.g., roof) or involving leaks and mold.4 Such repair needs not only decrease energy efficiency but also pose considerable health and safety risks. While wealthier households are more likely to have the financial resources to invest in needed repairs and weatherization to improve energy efficiency and address structural deficiencies posing health and safety risks, these costs can pose significant barriers to low- and middle-income households. Meanwhile, assistance offered through the federal Weatherization Assistance Program falls far short of the need.5

Policy Solution

Weatherization programs can reduce energy cost burdens by about 25%6 through increased home energy efficiency, facilitate the transition to clean energy, reduce peak demand on the electric grid, and improve the health and safety of residents. Weatherization improvements can include insulation installation, air sealing, window replacement, mold and moisture remediation, and the installation of energy-efficient appliances.7

Model Policy Features

Key policy components that make weatherization programs effective include:

Potential Policy Drawbacks and Pitfalls

  • May be inaccessible to households that need significant upgrades first, which can be difficult to fund.
  • Possible increase in identification of homes that neither meet housing quality standards for health and safety nor are salvageable through retrofit efforts.
  • Large funding requirements may require new funding sources and models or layering with other home-repair funds (e.g. mold remediation to address asthma triggers). 
  • Possible temporary displacement of residents in homes requiring significant retrofits. 

Complementary Policies

CComplementary policies that can enhance the effectiveness and functionality of weatherization include:

  • Electrification readiness and pre-weatherization programs to maximize the feasibility of implementing energy efficiency upgrades within the home.
  • Electrification to facilitate the shift to clean energy sources.
  • Comprehensive DER valuation to enable electrification to be paid for, in part, through compensation of any broader benefits provided to the grid, such as deferral of distribution upgrades or peak demand reduction. 

Additional supporting policies include contractor education and public housing energy efficiency improvements.

1. Washington Weatherization Plus Health Program

Details:

  • Provides weatherization assistance that includes both energy efficiency (e.g., insulation, air sealing) and healthy home improvements (e.g., carpet removal, floor replacement, pest mitigation).8
  • Households with incomes at or below 150% of the Federal Poverty Level9 and that include members who are living with disabilities, older adults, children under the age of six, and living with asthma or other respiratory illnesses are prioritized.10
  • Funded through the state capital budget and Washington’s Climate Commitment Act ($35 million in 2023; $30 million in 2025-27 biennium).11
  • Requires that weatherization agencies employ individuals trained from workforce training and apprentice programs whenever possible, pay prevailing wages, and develop job opportunities for veterans and members of low-income and disadvantaged communities.12

Challenges:

  • Requires a match from “sponsors,” or organizations that undertake weatherization work through the program, which include community action agencies, utilities, and Tribal governments.13
  • Although 2023 investments have enabled the program to serve an additional 500 homes, compared to 2021-2023,14 the need for weatherization services continues to outstrip available resources. A 2021 study found that there are approximately 750,000 households in Washington who qualify for weatherization assistance annually.15
    1. Joint Center for Housing Studies of Harvard University. (2025). 2025 Improving America’s Housing. ↩︎
    2. Moon, J. (2024). State and Federal Whole Home Repair Programs: Can They Solve the Weatherization Assistance Program Deferrals Problem? Just Solutions. ↩︎
    3. Sustainable Energy Action Committee. (2023). Energy Codes Then and Now, 1983-2021. ↩︎
    4. Divringi, E., Wallace, E., Wardrip, K., and Nash, E. (2019). Measuring and Understanding Home Repair Costs: A National Typology of Households. ↩︎
    5. Moon, J. (2024). State and Federal Whole Home Repair Programs: Can They Solve the Weatherization Assistance Program Deferrals Problem? Just Solutions. ↩︎
    6. Drehobl, A., Ross, L., and Ayala, R. (2020). How High are Household Energy Burdens?: An Assessment of National and Metropolitan Energy Burden Across the United States, American Council for an Energy-Efficient Economy. ↩︎
    7.  U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy. Weatherization Works! Accessed: October 7, 2025. ↩︎
    8. Washington State Department of Commerce. Weatherization Plus Health. Accessed: October 7, 2025. ↩︎
    9. Washington State Legislature. An Act relating to healthy housing, HB 1720, 2015 Regular Session. ↩︎
    10. Washington State Department of Commerce. Weatherization Plus Health. Accessed: October 7, 2025. ↩︎
    11. Washington State Department of Commerce. Weatherization Plus Health. Accessed: October 7, 2025 ↩︎
    12. Washington State Legislature. An Act relating to healthy housing, HB 1720, 2015 Regular Session. ↩︎
    13. Washington State Legislature. An Act relating to healthy housing, HB 1720, 2015 Regular Session. ↩︎
    14. Washington State Department of Commerce. Weatherization Plus Health. Accessed: October 7, 2025 ↩︎
    15. Washington State Department of Commerce. (2022). Weatherization Plus Health 2022 Report. ↩︎