The Weatherization Assistance Program (WAP) is one of the longest-running energy assistance programs in the United States, and for households struggling with high utility bills, it may be one of the most valuable resources available. Administered by the U.S. Department of Energy (DOE), WAP provides free home energy efficiency improvements to income-eligible households — reducing heating and cooling costs without requiring repayment. If you've been wondering whether this program may be available to you, this guide walks through the history, how it works today, who may qualify, and exactly how to apply.

Data Snapshot

Since its founding in 1976, the Weatherization Assistance Program has served more than 7 million homes across the United States, according to the U.S. Department of Energy (energy.gov). In recent years, the program has received significant funding boosts: the Bipartisan Infrastructure Law (2021) allocated $3.5 billion to WAP over five years — the largest single investment in the program's history. The DOE estimates that weatherized homes save an average of $372 per year on energy costs, though actual savings vary by home size, climate, and the improvements made. Funding is distributed to states, U.S. territories, and tribal governments, which then contract with local agencies to deliver services. Source: U.S. Department of Energy — Weatherization Assistance Program

A Brief History of WAP

The Weatherization Assistance Program was created under the Energy Conservation and Production Act of 1976, during a period of national concern over rising energy prices following the 1973 oil embargo. The original intent was straightforward: help low-income families — who spend a disproportionate share of their income on energy — make their homes more efficient.

Over the decades, the program expanded its scope. Early efforts focused primarily on basic insulation. By the 1990s, the program had incorporated more sophisticated energy auditing tools, allowing local agencies to prioritize the improvements most likely to reduce costs for each specific home. The American Recovery and Reinvestment Act of 2009 temporarily tripled WAP funding, enabling a major surge in services. The 2021 infrastructure investment represents the next major chapter, with the goal of reaching millions more households over the coming years.

Today, WAP operates in all 50 states, the District of Columbia, U.S. territories, and on tribal lands — making it one of the most geographically broad energy assistance programs in the country.

What Weatherization Services Actually Cover

This is where WAP stands apart from utility bill assistance programs like LIHEAP (Low Income Home Energy Assistance Program). Rather than helping pay a bill, WAP makes physical improvements to your home that lower your bills going forward. Services are determined by a certified energy auditor who assesses your home before any work begins.

Common Weatherization Measures

  • Insulation: Attic, wall, and floor insulation to reduce heat loss in winter and heat gain in summer
  • Air sealing: Closing gaps around windows, doors, pipes, and electrical outlets that allow conditioned air to escape
  • Heating and cooling system upgrades: Repair or replacement of furnaces, boilers, heat pumps, and central air systems
  • Water heater improvements: Insulation wraps or replacement of inefficient units
  • Health and safety repairs: Addressing issues like carbon monoxide risks, combustion safety problems, or ventilation concerns that could make a home unsafe to weatherize
  • Energy-efficient lighting and appliances: In some cases, replacement of refrigerators or lighting fixtures

The specific measures available depend on your state's program design and the results of your home energy audit. Not every measure is available in every state or for every home.

Who May Be Eligible for WAP

Eligibility for the Weatherization Assistance Program is primarily based on household income, though states have some flexibility in how they set and apply the rules.

Income Guidelines

The federal standard sets eligibility at or below 200% of the Federal Poverty Level (FPL). However, some states set their threshold lower — at 150% or 125% of FPL — so the income limit that applies to you depends on where you live.

Households that already receive certain other benefits may be automatically income-eligible in many states, including: - Supplemental Nutrition Assistance Program (SNAP) - Supplemental Security Income (SSI) - Temporary Assistance for Needy Families (TANF) - Certain Medicaid programs

Priority Populations

Federal rules require that states give priority to: - Households with elderly members (age 60 or older) - Households with members who have disabilities - Households with children under age 6 - Households with high energy burdens (spending a high percentage of income on energy)

If you fall into one of these categories, you may be moved up on a waitlist — another reason to apply as early as possible.

Renters vs. Homeowners

Both renters and homeowners may be eligible for WAP services. If you rent, your landlord's permission is typically required before work can begin. Some states have additional protections to ensure landlords cannot raise rent as a result of weatherization improvements.

Documents You'll Likely Need

Gathering your paperwork before you contact your local agency can speed up the process considerably. While exact requirements vary by state and local agency, most applications ask for:

  • Proof of income: Recent pay stubs, Social Security award letters, tax returns, or benefit statements for all household members
  • Proof of identity: Government-issued ID for the applicant
  • Proof of residence: Utility bill, lease agreement, or mortgage statement showing your current address
  • Proof of home ownership or rental status: Deed, mortgage statement, or signed lease
  • Social Security numbers: For all household members (requirements vary)
  • Recent utility bills: To help the energy auditor understand your current usage
  • Documentation of any disabilities or special circumstances: If applicable, to support priority status

If you receive SNAP, SSI, or TANF, bring your benefit award letter — it may simplify the income verification process.

How to Apply: Step-by-Step

WAP does not have a single national application. The process runs through your state and local community action agencies.

Step 1: Find Your Local Weatherization Agency

The DOE maintains a state-by-state directory of weatherization contacts. You can also search through your state energy office or contact a local community action agency. The Benefits.gov website can help you identify programs and contacts in your area.

Step 2: Contact the Agency and Ask About Waitlists

Many local agencies have waitlists, particularly in high-demand areas. Call or visit your local agency to ask about current wait times and whether you may qualify for priority placement. Don't let a waitlist discourage you — getting on the list is the first step.

Step 3: Complete the Application

Your local agency will provide an application form. Fill it out completely and submit all required documents. Incomplete applications are a common cause of delays. If you need help completing the form, most agencies can assist you in person.

TCPA notice: If you submit your contact information through any online form — including those on state agency or community action agency websites — you may be consenting to be contacted by phone, email, or text regarding your application. Review the consent language on any form before submitting.

Step 4: Schedule a Home Energy Audit

Once your application is approved, a certified energy auditor will visit your home to assess its current efficiency and identify which improvements are most cost-effective. This audit is free and is required before any work begins.

Step 5: Work Is Completed

A contractor approved by your local agency performs the weatherization work. You are not responsible for the cost. After work is completed, a quality control inspector typically reviews the improvements.

Realistic Timeline

From application to completed work, the process can take anywhere from a few weeks to several months, depending on your state, local agency capacity, and waitlist length. The $3.5 billion infrastructure investment is helping agencies expand capacity, but demand remains high in many areas.

How WAP and LIHEAP Work Together

If you're facing an immediate utility shutoff or a high energy bill right now, WAP alone may not be the right first call — WAP addresses long-term efficiency, not immediate crisis assistance. The Low Income Home Energy Assistance Program (LIHEAP), also federally funded but administered through the Department of Health and Human Services (HHS), provides direct financial assistance for heating and cooling costs and crisis intervention.

Many households benefit from both programs. LIHEAP can help with today's bill; WAP can help lower next year's bills. Your local community action agency often administers both, so one call may connect you to multiple resources.

State Variation and What It Means for You

Because WAP funding flows from the federal government to states and then to local agencies, the program looks different depending on where you live. Income thresholds, priority criteria, available services, contractor networks, and waitlist lengths all vary. Some states have invested additional state funds to expand the program beyond federal minimums. Others operate with leaner budgets and longer waits.

The only way to know what may be available to you is to contact your local agency directly.

Program eligibility and availability vary by state. Not affiliated with any government agency.

People Also Ask

Does WAP cover apartment buildings? Yes, in many states WAP can serve renters in apartment buildings, including multifamily properties. Landlord consent is required, and some states have rules limiting how many units in a building must be income-eligible. Contact your local agency to ask about multifamily weatherization options in your area.

Can I apply for WAP and LIHEAP at the same time? In most states, yes. Many community action agencies administer both programs and can screen you for both during a single intake appointment. Applying for both may make sense if you have an immediate energy cost burden and also want long-term efficiency improvements.

How long does weatherization work take to complete once approved? The actual work typically takes one to five days depending on the size of your home and the scope of improvements. Scheduling depends on contractor availability in your area. The energy audit and approval process before work begins may add additional time.

Is there a cost to the homeowner or renter for WAP services? No. Weatherization services provided through WAP are free to eligible households. You should never be asked to pay for the energy audit, the improvements, or the quality control inspection. If someone asks you to pay, contact your state energy office.

What happens if my home has health or safety issues? If the energy auditor identifies health or safety problems — such as a faulty furnace, mold, or structural issues — the agency may address those first or refer you to other programs before weatherization work can proceed. This is done to protect both you and the workers.

Last reviewed: October 2026