Price per unit
US average
$5–$12
In Illinois
$5–$12
per sq ft installed
Typical project
a 2,000 sq ft roof (architectural shingles) — $9,100–$24,000
What's included
- Tear-off and disposal
- Underlayment and ice & water shield
- Shingles or panels
- Flashing, ridge cap, vents
What drives the cost
- Material (asphalt vs metal vs tile)
- Roof pitch and complexity
- Deck repair if rotted
- Number of penetrations
Get an exact Illinois quote in 3 minutes
These are local averages. For a precise number, use the free calculator — it auto-adjusts pricing to your ZIP code.
Frequently asked questions
How much does roof replacement cost in Illinois?
In Illinois, expect $5 to $12 per sq ft installed in 2026, depending on materials, scope, and access.
Why is the price different in Illinois?
Illinois labor and material costs differ from the national average, so the same job costs more or less here than elsewhere. Our calculator adjusts automatically by location.
How do I get an accurate quote?
Measure the area, then use the free ConstruMate calculator — it itemizes material and labor at local rates and produces a professional estimate in minutes.