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Reviewed October 1, 2026

Home Weatherization Assistance Program (Illinois DCEO)

Illinois Home Weatherization Assistance Program helps qualifying households improve energy efficiency. Apply through the community action agency serving your area.

Who can apply

The agency reviews household income and property participation. Illinois also lists qualifying benefit-program enrollment as a possible categorical eligibility route. Use the current IHWAP guidance for your household.

What help is available

Approved work can include air sealing, insulation, heating or water-heater measures and selected health and safety improvements. The assessment determines the work.

Documents to prepare

  • Household income or qualifying benefit enrollment evidence.
  • Address and property information.
  • The local agency’s requested records and rental permissions.

How to get started

  1. Find your agency

    Use the community action agency link on the IHWAP page.

  2. Complete local intake

    Ask about eligibility and the assessment process.

  3. Confirm approved work

    Arrange access and review what the provider has authorized.

After applying

Keep the assessment, appointments and completed-work information. Ask the local agency about any safety condition preventing work.

Website screenshots

These images show the pages captured in August 2026. Website screens and rules may have changed.

The Illinois DCEO home weatherization program page.
August 2026 reference screenshot.
The DCEO weatherization application page.
August 2026 reference screenshot.

Common questions

Does LIHEAP enrollment matter?

Illinois lists recent LIHEAP participation as a categorical eligibility route.

Can I select an unrestricted renovation?

No. Approved weatherization and safety measures govern the work.

Are the income guidelines current?

The state page identifies its current table as program year 2027.

Where do I apply?

Contact the community action agency serving your area.

Sources and review

Reviewed October 1, 2026 using Illinois IHWAP requirements and measures. Agency staff determine eligibility.

Historical screenshots: source reference.