What Is the Weatherization Assistance Program?
The DOE Weatherization Assistance Program (WAP) is the largest residential energy efficiency program in the United States, providing free home energy improvements to low-income households across all 50 states. Unlike energy bill assistance (which covers costs after the fact), WAP makes permanent structural upgrades that reduce your bills for the life of the home — at no cost to you.
Common improvements include attic and wall insulation, air sealing, furnace and boiler repair or replacement, water heater upgrades, window and door weatherstripping, and health-and-safety corrections. The average household sees energy bills drop by hundreds of dollars per year after weatherization. In 2026, the program was expanded to include heat pump installations and advanced energy controls in qualifying climates.
Priority is given to households with elderly members (60+), young children under 6, or individuals with disabilities. Renters may also qualify with written landlord permission. If you receive LIHEAP, SNAP, SSI, or TANF, you are automatically income-eligible in most states — no separate income documentation required.
| Household Size | Monthly Income Limit (200% FPL) | Annual Income Limit |
|---|---|---|
| 1 person | $2,430 | $29,160 |
| 2 people | $3,287 | $39,440 |
| 3 people | $4,143 | $49,720 |
| 4 people | $5,000 | $60,000 |
| 5 people | $5,857 | $70,280 |
| 6 people | $6,713 | $80,560 |
| Each add'l person | +$857 | +$10,280 |