How Does the Weatherization Assistance Program Work?
Learn who qualifies for free home weatherization, how to apply, and what upgrades lower energy bills.
The Weatherization Assistance Program pays for energy-saving home upgrades for low-income households. The U.S. Department of Energy funds the program through states, tribes and local agencies, and eligible households receive the work at no cost.
The program increases home energy efficiency while protecting health and safety, according to the Department of Energy program description. Local crews install only the upgrades that fit the specific home.
Verification note: Program terms and availability can change. This page was checked against linked sources on November 03, 2026.
Who can qualify?
Households at or below 200% of federal poverty guidelines can qualify under federal guidelines. Households receiving Supplemental Security Income and households meeting LIHEAP or HUD and USDA categorical rules can also qualify, according to the Department of Energy application guide. States must give priority to elderly residents, people with disabilities and families with children.
Priority also goes to high energy users and households with high energy burden.
- income at or below 200% of federal poverty guidelines
- receipt of Supplemental Security Income
- categorical eligibility through LIHEAP, HUD or USDA rules
How do you apply?
Applicants do not apply to the Department of Energy directly. They contact their state weatherization administrator, which refers them to the local provider serving their county for intake and eligibility checks, according to the Department of Energy application guide. The program uses a formula-grant structure.
Federal funds go to states, territories and tribes, which then contract with local governments and community agencies to do the work.
- find your state weatherization administrator
- get referred to the local provider for your county
- complete intake and eligibility verification with that provider
What happens during the energy audit?
A trained auditor visits the home and runs a computerized, home-specific energy audit or approved priority list. The audit includes diagnostic tests to find air leaks, heating problems and safety risks. The auditor then selects only the most cost-effective conservation measures for that dwelling.
That choice keeps spending tied to expected energy savings for the specific house.
What upgrades are installed and what do they save?
Typical measures include insulation, air sealing, space-heating equipment, water heaters, efficient air conditioners and energy-efficient windows. Crews also perform safety checks and minor related repairs. Weatherized households save on average $372 or more per year, and the program has served more than 7.4 million low-income households since 1976, according to the Department of Energy program page.
Ask the local provider what measures your home type allows.