Basement Finishing Cost in Illinois (2026)
Compare basement finishing costs across 3 cities in Illinois. Prices range from $23,800 in Aurora to $26,800 in Naperville.
State average
$25,600
Range
$23,800 – $26,800
Cities tracked
3
City comparison
| City | Avg cost | Budget range | High-end range | vs state avg |
|---|---|---|---|---|
| Naperville, IL | $26,800 | $8,800–$10,700 | $60,400–$77,200 | +5% |
| Chicago, IL | $26,200 | $8,600–$10,500 | $58,900–$75,300 | +2% |
| Aurora, IL | $23,800 | $7,800–$9,500 | $53,500–$68,300 | -7% |
Explore each city
Naperville, IL
Avg: $26,800 · $8,800–$77,200
Chicago, IL
Avg: $26,200 · $8,600–$75,300
Aurora, IL
Avg: $23,800 · $7,800–$68,300
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Frequently asked questions
The average basement finishing in Illinois costs $25,600. Prices range from $23,800 in Aurora to $26,800 in Naperville. Costs vary by city due to differences in labor rates, material availability, and local code requirements.