Missouri Weatherization Assistance Program (WAP)

Missouri DNR / CAASTLC (St. Louis County)

Available Home Repair

About This Program

Missouri Weatherization Assistance Program (WAP) is available to homeowners and renters in St. Louis, MO.

Free weatherization for households at or below 200% Federal Poverty Level. Covers insulation, air sealing, heating system repair/replacement, and energy audits. St. Louis area administered by Community Action Agency of St. Louis County (CAASTLC). Renters need landlord approval. Average 35% energy bill reduction.

Below 200% FPL, 4-person HH: $64,300

Official source site checked live on 2026-06-22.

Data last verified 2026-04-01. How we verify our data.

In St. Louis, MO, you can combine this program with other local help to cut your cost:

Key Details

  • Income limit: 200% FPL (4-person: $64,300/yr)
  • Covers insulation, air sealing, furnace repair/replace
  • CAASTLC serves St. Louis County, call option 2
  • City of St. Louis: contact CAASTLC or call 211

How to Apply

Get free help applying Visit Official Program Page Track this program

314-863-0015

A grant-savvy contractor in St. Louis, MO 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 St. Louis early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • Household income proof (recent pay stubs, last year's tax return, or benefit award letters for everyone in the home).
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

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: Year-round through CAASTLC

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

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Frequently asked questions

How much can Missouri Weatherization Assistance Program (WAP) provide in St. Louis, MO?

Free (~35% energy savings).

Who qualifies for Missouri Weatherization Assistance Program (WAP) in St. Louis?

Missouri Weatherization Assistance Program (WAP) is open to homeowners and renters in St. Louis, MO. It prioritizes low-income households.

How do I apply for Missouri Weatherization Assistance Program (WAP) in St. Louis, MO?

Apply directly with Missouri DNR / CAASTLC (St. Louis County) using the official program link on this page or call 314-863-0015. There is no middleman and no fee.

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