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DictionaryAssistance programs

Weatherization: what it means

Weatherization means improvements that make your home more energy efficient, such as sealing doors and windows or making the furnace work better. The U.S. Department of Energy's Weatherization Assistance Program (WAP) makes these improvements in low-income homes to lower their energy costs while protecting their health and safety.

In Spanish it is

Climatización (weatherization)

Also written as: Weatherization Assistance Program · WAP

The full explanation

States and local organizations run it. Both homeowners and renters can apply; if you rent, the provider gets your landlord's permission before work begins. If you are income eligible, you are placed on a waitlist.

An example

Ana rents an apartment that lets in a lot of cold air. She looks up her state's weatherization program, applies and, because she is income eligible, is put on the waitlist. The provider asks the owner for permission before doing the work.

You will see it in…

  • Your state's weatherization program page
  • Your county's community action agencies
  • Brochures about help with electric and gas bills

Words that go with it

You will rarely see this word alone. These are the ones that show up with it on the same papers.

An older woman smiles in front of her apartment building.

Still confused by a paper?

A HUD-approved housing counselor can walk you through it. Agencies usually charge little or nothing, many work in Spanish, and they do not sell you anything.

Official sources

We sum up what these official sources say, in plain words. We add no rules they do not state; when a rule changes, the definition and its date change.

  1. 1. U.S. Department of Energy · Weatherization Assistance Program (external site) · in English · Verified on October 17, 2026
  2. 2. U.S. Department of Energy · How to Apply for Weatherization Assistance (external site) · in English · Verified on October 17, 2026
  3. 3. Legal Information Institute (Cornell Law School) · 42 U.S.C. § 6862: definitions (weatherization materials) (external site) · in English · Verified on October 17, 2026