2026 Q3 · metro rank 13 of 263
Roof replacement cost in Decatur
An architectural shingle roof in the Decatur, IL metro costs $581 per square installed on the 2026 Q3 Roof Cost Index: -4.6% against the Illinois figure of $609 and +16.2% against the US typical of $500. Roofers here earn a mean $34.90/hour (median $35.88, about 60 employed), BLS May 2025. For a whole roof: an architectural shingle roof on a 2,000 sq ft single-story home (6/12 pitch, one layer torn off, permit and dumpster included) costs $14,513 to $25,477 here, typical $19,955.
All materials in Decatur
| Material | Low | Typical | High | US typical | vs US |
|---|---|---|---|---|---|
| Architectural shingles | $475 | $581 | $687 | $500 | +16.2% |
| 3-tab shingles | $330 | $417 | $505 | $355 | +17.5% |
| Standing seam metal | $1,024 | $1,412 | $1,799 | $1,250 | +12.9% |
| Metal panel | $599 | $1,049 | $1,499 | $900 | +16.6% |
| Tile | $824 | $2,074 | $3,323 | $1,800 | +15.2% |
| Slate | $1,099 | $2,224 | $3,348 | $2,000 | +11.2% |
| Flat membrane | $300 | $556 | $812 | $475 | +17.0% |
This page is generated from the 2026 Q3 Index for the BLS metropolitan statistical area "Decatur, IL" (area code 19500). State rank for Illinois: 1 of 51. Methodology.
Roofing conditions in Decatur
Housing age. The median home in the Decatur, IL metro was built in 1964, older than the median metro in the Index (1982). 75.3% of homes were built before 1980 and 8.2% in 2000 or later; 70% of occupied homes are owner-occupied. Roof age, not house age, sets the replacement date.
Hail. NOAA's Storm Events database logged 38 county hail reports across the metro's 1 county from 2021 to 2025 (2 in 2021, 2 in 2022, 4 in 2023, 25 in 2024, 5 in 2025), rank 98 of 263 metros. From January 2021 to June 2026, 39 reports were stones of 1 inch or larger, and the largest was 2.5 inches. Most reports came from Macon, Illinois (48). After a hail storm, read the roof insurance claim guide and how hail damages a roof.
Sources: NOAA NCEI Storm Events Database (county hail reports 2021 to June 30, 2026); U.S. Census Bureau ACS 5-year estimates 2020-2024, tables B25035, B25034 and B25003; counties per OMB July 2023 metro definitions.
Other Illinois metros
- Chicago-Naperville-Elgin $628/sq
- Springfield $614/sq
- Peoria $574/sq
- Rockford $560/sq
- St. Louis $538/sq
- Champaign-Urbana $518/sq
- Davenport-Moline-Rock Island $483/sq
Metros with a similar cost
- Atlantic City-Hammonton, NJ $591/sq · rank 10
- San Francisco-Oakland-Fremont, CA $590/sq · rank 11
- Seattle-Tacoma-Bellevue, WA $584/sq · rank 12
- St. Cloud, MN $576/sq · rank 14
- Duluth, MN-WI $574/sq · rank 15
More: how much a new roof costs, every state, the full Index.
Estimate a roof in Decatur
Low / typical / high ranges from cited national cost tables, adjusted by local roofer wages (BLS). No email required.