Montana Department of Public Health & Human Services / Action Inc.
Montana Weatherization Assistance Program (WAP) is available to homeowners and renters in Great Falls, MT.
State-funded weatherization services for income-qualified households in Cascade County. Action Inc. provides free energy audits and improvements including insulation, air sealing, furnace repair/replacement, and water heater upgrades to reduce utility bills.
Average weatherization package value for Montana homes
Verified against Montana Department of Public Health & Human Services / Action Inc.'s official page on 2026-06-17.
Data last verified 2026-06-09. How we verify our data.
In Great Falls, MT, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Great Falls, MT 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 Great Falls early keeps your application moving.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
This is a free, federally funded program that lowers your energy bills by improving your home's energy efficiency. After you qualify, a local agency does a free home energy audit and installs measures like attic insulation, air sealing, and heating system repair at no cost to you. The Montana Department of Public Health and Human Services runs it through a network of local agencies, so you apply through the 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 applications
Ask us. It is free, and a real person answers within a business day.
Email us about this programUp to $12,000 in weatherization services.
Montana Weatherization Assistance Program (WAP) is open to homeowners and renters in Great Falls, MT. It prioritizes low-income households.
Apply directly with Montana Department of Public Health & Human Services / Action Inc. using the official program link on this page or call (406) 761-0551. 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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