Illinois Department of Commerce and Economic Opportunity
The state weatherization program provides free energy-saving improvements to income-eligible households at or below 200% of the federal poverty level. Services include insulation, air sealing, window repair/replacement, and heating system upgrades. Households must not have received weatherization in the last 15 years.
Fully free; must not have received weatherization in last 15 years
Deadline: Ongoing; apply through local Community Action Agency
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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