U.S. Department of Energy
DOE Weatherization Assistance Program (WAP) is available to homeowners and renters in San Antonio, TX.
WAP provides free energy efficiency improvements to low-income households across all 50 states, DC, and territories. Eligible households receive insulation, air sealing, furnace repairs, water heater replacement, and other energy upgrades at no cost. Income must be at or below 200% of the federal poverty level; some states use 60% of state median income. Apply through your state or local community action agency.
Income at or below 200% of federal poverty level (varies by state)
Official program page checked live on 2026-06-22.
Data last verified 2026-04-03. How we verify our data.
This is a national program. In San Antonio, TX, you can stack it with local programs like these:
A grant-savvy contractor in San Antonio, TX can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
You will likely need a contractor to apply
Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in San Antonio early keeps your application moving.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
The U.S. Department of Energy's Weatherization Assistance Program funds free energy efficiency improvements for income-qualified households. DOE does not weatherize homes directly; it sends the money to each state, which delivers the work through a network of local agencies. You apply through your state's weatherization program and the local agency that serves your county.
Steps to apply
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Rolling, apply through your state weatherization agency year-round
Ask us. It is free, and a real person answers within a business day.
Email us about this programAverage $5,000-$10,000 in services per household.
DOE Weatherization Assistance Program (WAP) is open to homeowners and renters in San Antonio, TX. It prioritizes low-income households. It serves seniors.
Apply directly with U.S. Department of Energy using the official program link on this page. There is no middleman and no fee.
Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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