Illinois Department of Commerce & Economic Opportunity
Illinois Weatherization Assistance Program (WAP) is available to homeowners and renters in Granite City, IL.
Federally funded weatherization program administered by Illinois DCEO providing free energy efficiency improvements to income-eligible households. Services include insulation, air sealing, furnace repair/replacement, and window upgrades to reduce energy costs.
Average weatherization package value based on home assessment
Official program page checked live on 2026-06-22.
Data last verified 2026-06-09. How we verify our data.
In Granite City, IL, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Granite City, IL 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 Granite City early keeps your application moving.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
A free program that lowers your energy bills by improving your home's energy efficiency (insulation, air sealing, heating system repair or replacement). It is income qualified and run through local agencies, and the Illinois Department of Commerce and Economic Opportunity (DCEO) administers it in Illinois.
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: Year-round applications accepted
Ask us. It is free, and a real person answers within a business day.
Email us about this programUp to $7,500 in weatherization services.
Illinois Weatherization Assistance Program (WAP) is open to homeowners and renters in Granite City, IL. It prioritizes low-income households. It serves seniors.
Apply directly with Illinois Department of Commerce & Economic Opportunity using the official program link on this page or call (800) 252-8643. 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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