How to apply for Weatherization Assistance Program (WAP)

Who it's for

WAP funds free home energy upgrades for income-eligible households to reduce energy bills, improve comfort, and address health-and-safety hazards. After a free professional energy audit, local providers install whatever the audit identifies — typically attic and wall insulation, air-sealing, weatherstripping, duct sealing, water-heater wraps, LED lighting, smart thermostats, refrigerator replacement (for very old high-draw units), HVAC tune-ups or replacement, ventilation upgrades, and carbon-monoxide detector installation. Average per-home investment in California ranges from $3,000 to $8,000 depending on the home's condition. WAP is open to homeowners AND renters (rental units require landlord written consent). The program is one-time per home (typically), though homes can sometimes be re-weatherized after 15 years if a new audit identifies additional measures. WAP is funded primarily by the U.S. Department of Energy with additional layered funding from HHS (LIHEAP-Wx) and state utility programs, all delivered by the same local providers.

What you'll need

• Proof of household income for the prior 12 months (Social Security award letter, pension statements, prior-year tax return, pay stubs)
• Proof of residency
• Most recent electric and gas bills for the home being weatherized
• For renters: written landlord consent allowing the work to be performed and a copy of the lease
• Photo ID for the applicant

Where to apply

Renewals

one-time (homes are typically eligible for re-weatherization only after 15 years)