How Much Does Egress Window Installation Cost in Illinois?
Illinois pricing is near the national average. Updated for 2026.
Egress Window Installation Pricing in Illinois
In Illinois, the average cost for egress window installation is $4,200 per window, which is 5% higher than the national average of $4,000. Most Illinois residents pay between $2,625 and $6,300.
Illinois has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
Egress windows are required in finished basements used as bedrooms. Installation involves cutting through the foundation wall, installing a window well, and adding a code-compliant window.
Illinois vs National Average
What Affects Egress Window Installation Cost in Illinois?
Foundation
Poured concrete: $2,500-$4,500. Block foundation: $3,000-$5,000. Stone foundation: $4,000-$6,000
Window
Sliding: $200-$500. Casement: $300-$700. In-swing hopper: $250-$600
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💡 Tips to Save on Egress Window Installation in Illinois
- 1.Bundle with basement finishing for better pricing
- 2.Standard sizes are cheaper than custom
- 3.Window wells with built-in steps reduce cost vs custom metalwork
- 4.Check if your municipality offers express permits for egress windows
📈 Egress Window Installation in Illinois Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $3,567 | — |
| 2021 | $3,717 | +4.2% |
| 2022 | $3,959 | +6.5% |
| 2023 | $4,070 | +2.8% |
| 2024 | $4,200 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Egress Window Installation in Illinois
Recent Reports
Frequently Asked Questions
Do I need an egress window?
Yes, if you're finishing a basement bedroom. Building code requires at least one egress window with a minimum opening of 5.7 sq ft and a sill no higher than 44 inches from the floor.
Egress Window Installation Cost in Other States
Related Cost Guides for Illinois
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