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REBATE GUIDE
Air Sealing Rebates

Illinois Air Sealing Rebates

What ComEd Rebates covers for air sealing in Illinois, why it matters before a heat pump, and how to access the rebate.

High confidenceLast checked: 2026-05-285 official sources
Quick Answer

What air sealing rebates are available in Illinois?

Illinois homeowners can access air sealing rebates through ComEd Rebates, typically as part of a whole-home weatherization project alongside insulation. Estimated coverage: $400–$500. Insulation coverage: $150–$500. A no-cost home energy assessment is generally required first, and work must be done by a program-approved contractor.

Amounts are estimates. Verify with your utility or ComEd Rebates.

Why air sealing matters in Illinois

Reduces heat loss in cold climates
Illinois's cold winters mean uncontrolled air infiltration is a significant source of energy loss. Air sealing dramatically reduces this, especially when combined with insulation.
Required for whole-home heat pump rebates
Many ComEd Rebates whole-home heat pump rebate paths require verified weatherization. Air sealing is a core part of this — completing it first can unlock higher rebate tiers.
Lower right-sizing risk
A properly air-sealed home needs a smaller heat pump. Oversizing a heat pump leads to short-cycling, humidity problems, and reduced efficiency.
Blower door test verification
Air sealing is measured by a blower door test — a pressure test that quantifies air leakage. Your energy assessor will measure before and after to document improvement.

How the air sealing process works

1
Schedule a home energy assessment
Contact your utility or ComEd Rebates to schedule a no-cost home energy assessment. This confirms eligibility and identifies air leakage locations.
2
Receive contractor referrals
ComEd Rebates will provide a list of approved contractors who can perform the air sealing and insulation work.
3
Get quotes from approved contractors
Compare quotes from approved contractors. Work done outside the approved contractor network is generally not eligible for the rebate.
4
Work is completed and rebate processed
After the work is done, the contractor or program processes the rebate. Confirm the rebate structure with your contractor before work begins.
Frequently Asked Questions

What air sealing rebates are available in Illinois?

Air sealing rebates are available through ComEd Rebates. They are typically done alongside insulation as part of whole-home weatherization. A home energy assessment is generally required first. Verify current coverage with ComEd Rebates.

Is air sealing required before a heat pump rebate in Illinois?

Many Illinois whole-home heat pump rebate paths require or strongly encourage weatherization — including insulation and air sealing — before approval. Check with ComEd Rebates for current weatherization requirements.

Related
Insulation RebatesHVAC Rebates 2025Heat Pump Calculator
Official Sources
2026-05-28
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