Most homeowners price a new furnace, insulation, or air sealing as a project they have to save up for.
A federal program will do all three for free if your household qualifies, and most eligible homeowners never apply because they assume free home upgrades are only for renters or do not exist at all.
The Weatherization Assistance Program (WAP) is real, federally funded, and specifically covers the exact repairs PHW readers ask about most: insulation, air sealing, and a failing heating or cooling system.
Here is what it actually pays for, who qualifies, and how it compares to paying a contractor out of pocket.
What WAP Actually Covers
The U.S. Department of Energy runs WAP through state agencies and local community action partners.
It is not a rebate or a discount coupon.
A certified crew assesses your home, then performs the work directly, at no cost to you if you qualify.
- Attic, wall, and floor insulation
- Air sealing around windows, doors, and other leak points
- Repair or full replacement of an inefficient or unsafe heating and cooling system
- Water heater repair or replacement when it affects energy efficiency
- Health and safety repairs that must be resolved before other work can proceed, such as a combustion safety issue
- Efficient lighting and refrigerator replacement in some programs
DOE’s own program data shows participating households save an average of over $372 a year on energy costs afterward, on top of avoiding the repair bill itself.
Who Qualifies
The federal income ceiling is 200 percent of the federal poverty guidelines, the government’s baseline measure of income relative to household size.
States set their own exact dollar figures each year, but as an example, North Carolina’s 2026 guidelines put the ceiling at $31,920 for a single-person household, $43,280 for two people, and $66,000 for a household of four.
Your own state’s numbers may differ slightly, so check your state’s WAP office for the current figures where you live.
Many states also grant automatic eligibility if you already receive certain other assistance, such as Supplemental Security Income (SSI) or a state cash-assistance program.
Some states extend that automatic eligibility to households already approved for LIHEAP, the federal home energy assistance program.
Confirm this with your state’s WAP office rather than assuming it applies everywhere, since the rule is set state by state.
WAP vs. Paying Out of Pocket: Run the Comparison Before You Call a Contractor
- If you qualify by income: Apply to WAP before signing any contract for insulation, air sealing, or an HVAC replacement. There is no reason to pay for work the program will do for free.
- If you are close to the income limit but over it: Ask your state WAP office about the exact test it uses. Some states use 200 percent of the poverty guidelines, others use 60 percent of the state median income, whichever produces a higher, more generous limit. You may qualify under one test even after being told you do not under the other.
- If you are clearly over the limit: Compare our insulation types guide and DIY energy audit for what to prioritize and what a contractor should reasonably charge.
How to Apply
Every state runs its own WAP intake through a network of local agencies.
Start with the Department of Energy’s own application guide, which links to each state’s designated WAP network.
Gather proof of income for every household member and a recent utility bill before you call, since both are standard intake requirements.
Waitlists exist in high-demand areas, particularly right before winter, so apply as early in the year as you can rather than waiting until a system fails.
Common Questions
Does WAP put a lien on my house or require repayment?
No. WAP is a grant program, not a loan.
The work is provided at no cost and does not need to be repaid, and it does not place a lien against your property.
Can I choose my own contractor for the work?
No. Work is performed by your state’s certified WAP crews or approved local agency, not a contractor you select.
This is different from a rebate program, where you often hire your own contractor and then submit for reimbursement.
How long does approval and scheduling actually take?
Timelines vary widely by state and by how many households are ahead of you on the waitlist. Some areas complete an assessment within a few weeks.
Others, especially in high-demand regions right before winter, can take several months. Ask your local agency for its current wait time when you apply rather than assuming a national average applies to you.
Weatherization lowers the utility and maintenance lines of your monthly housing cost. See how those lines add up in our true cost of owning a home calculator.
Related guide: Before You Spend, Sign, or File a Claim: A Homeowner Decision Guide