Roof replacement cost in Illinois
A typical asphalt shingle replacement on a 1,500 to 2,500 sq ft home in Illinois runs about:
$10,900 to $17,000
That is about 1% above the national baseline of $10,800 to $16,800 for the same home (state index 1.01).
Illinois roof replacement cost by material and home size
| Home size | Asphalt shingle | Metal | Flat roof (TPO or EPDM) |
|---|---|---|---|
| Under 1,500 sq ft | $7,700 to $12,000 | $16,300 to $26,600 | $9,400 to $18,900 |
| 1,500 to 2,500 sq ft | $10,900 to $17,000 | $23,000 to $37,600 | $13,300 to $26,700 |
| 2,500 to 3,500 sq ft | $15,000 to $23,300 | $31,700 to $51,700 | $18,300 to $36,700 |
| Over 3,500 sq ft | $20,000 to $31,100 | $42,200 to $68,900 | $24,400 to $48,900 |
Per roofing square installed in Illinois: asphalt shingle $455 to $707; metal $960 to $1,566; flat roof (TPO or EPDM) $556 to $1,111.
How these Illinois figures are worked out
We start from the national typical price per roofing square for each material, multiply it by the squares on a typical roof for each home size, then apply the Illinois index of 1.01 from our state-by-state source data. The ranges assume: full replacement with a single-layer tear-off, sound decking, average pitch (4/12 to 7/12), standard permits, and architectural shingle as the default.
A steep roof, extra layers to tear off, or rotten decking push the price up. Your exact price comes from the roofer who inspects your roof. Sources and method
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