Roof Replacement Cost in Decatur, Illinois (2026)
Decatur, IL homeowners pay $6,790 to $15,035 to put asphalt shingles on a 2,000 sq ft house, roughly 6.9 to 15.4 weeks of the $50,809 a year the median Decatur, IL household takes in. The median Decatur, IL home dates from 1960. Starting ranges, not quotes. Prices compiled June 2026.
Short answer: In Decatur, IL the typical asphalt re-roof costs $10,900, which is 11.2 weeks of local pay on a $50,809 median household income. Metal in Decatur, IL runs $16,490 to $38,800, and the Decatur, IL asphalt range is $6,790 to $15,035.
Got a quote? See where it falls in Decatur, IL
Compares your price per square foot with the Decatur, IL installed range (tear-off and underlayment included). Not a judgment of any one roofer.
What would a Decatur, IL roof cost per month?
Example rate only; your lender's offer will differ. For a Decatur, IL home the principal is the local range for your size and material, and this is not a loan offer in Decatur, IL or anywhere else.
How much life is left in my Decatur, IL roof?
Typical lifespans are published ranges for each material; for a Decatur, IL house, real life also depends on installation, attic ventilation and the weather Decatur, IL gets.
Price your own roof in Decatur
Decatur, IL prices sit 3% under the national base. A typical Decatur, IL roof is 11.2 weeks of local pay, 22nd heaviest of 209 cities.
- Same job at national base rates
- Difference in Decatur
- Extra tear-off included
How we calculated this
One sum produces the asphalt shingle range at the top of this page. You can redo it with a calculator.
| Step | What goes in | Value |
|---|---|---|
| National base, low end | 3-Tab Asphalt Shingles, $3.50 per sq ft × 2,000 sq ft | $7,000 |
| National base, high end | Architectural Asphalt Shingles, $7.75 per sq ft × 2,000 sq ft | $15,500 |
| Decatur, IL cost index | Fixed for Decatur, IL, not recalculated from wages | 0.97× |
| Decatur, IL low | $7,000 × Decatur, IL index 0.97 | $6,790, 6.9 weeks of Decatur, IL pay |
| Decatur, IL high | $15,500 × Decatur, IL index 0.97 | $15,035, 15.4 weeks of Decatur, IL pay |
| Decatur, IL typical | Midpoint of the Decatur, IL low and high, rounded to $50 | $10,900 |
- Where Decatur, IL sits. The median index across the 209 cities we price is 0.89×. 186 of them are under 1.00× and 23 are over it.
- Roofer pay near Decatur, IL. Shown above beside the price, from the BLS source. The index is not calculated from it.
Prices compiled June 2026, BLS pay OEWS May 2025. This is an estimate, not a quote. Why the range has a low and a high end and how the other materials are priced: full method, inputs and limits.
Cost by roofing material in Decatur, IL
A typical asphalt roof in Decatur, IL costs $10,900, which is 11.2 weeks of local pay and puts Decatur, IL 22nd of 209 for burden.
| Material | Weeks of pay | Typical | Share of home value |
|---|---|---|---|
| 3-Tab Asphalt Shingles in Decatur, IL | 9.2 | $8,950 | 9.2% |
| Architectural Asphalt Shingles in Decatur, IL | 12.2 | $11,900 | 12.2% |
| Metal (Steel/Aluminum) in Decatur, IL | 23.3 | $22,800 | 23.4% |
| Standing Seam Metal in Decatur, IL | 31.8 | $31,050 | 31.9% |
| Concrete Tile in Decatur, IL | 20.8 | $20,350 | 20.9% |
| TPO / EPDM in Decatur, IL* | 5.9 | $5,800 | 6.0% |
* Flat-roof prices are per 1,000 sq ft, not for a whole 2,000 sq ft house. Rated life: 3-Tab Asphalt Shingles 15–20 years; Architectural Asphalt Shingles 25–30 years; Metal (Steel/Aluminum) 40–70 years; Standing Seam Metal 50–70 years; Concrete Tile 40–50 years; TPO / EPDM (flat roofs) 15–25 years. How we calculated these prices · Sources
Repair or replace in Decatur, IL
The median Decatur, IL home was built in 1960, so an original roof would be 66 years old, past the 25–30 years architectural shingles are rated for. Here a repair mostly buys time. 80.5% of Decatur, IL homes predate 1980, so some roofs on the street are second or third generation.
| Job | Cost | Weeks of pay |
|---|---|---|
| Small repair in Decatur, IL | $650 | 0.67 |
| Larger repair in Decatur, IL | $2,900 | 3.0 |
| Half of a new roof (50% rule) in Decatur, IL | $5,450 | 5.6 |
| One year of roof life in Decatur, IL | $396 | 0.41 |
The last row prices one year of roof life in Decatur, IL: a typical architectural roof divided by its rated 25–30 years. A repair is worth paying for when it buys at least as many years as its cost divided by that figure. The 50% rule is a common rule of thumb, not a law.
Decatur, IL roof bill in weeks of pay
Weeks of median household income
The median Decatur, IL household earns $50,809 a year, or $977 a week. A Decatur, IL asphalt re-roof, typically $10,900, takes 11.2 weeks of that.
Springfield ($10,900 typical, 37 miles away) takes 8.6 weeks of its own pay, 2.5 weeks fewer than Decatur, IL.
21 of 208 other cities ask for more, 187 for less.
Sum for Decatur, IL: $10,900 ÷ ($50,809 ÷ 52) = 11.2 weeks.
Source: Census ACS (Decatur city), 2019–2023What weather does to a Decatur, IL roof
- Freeze-thaw days. Water gets under shingles at night and expands as ice.
- Days at 90F or hotter. Heat bakes the oils out of asphalt and loosens sealant strips.
- Days with an inch of rain. Heavy rain tests flashing, valleys and gutters.
- Yearly precipitation. More water means more years of wet decking.
Rank 1 is the most days or inches among the cities we cover. Values are 2014–2023 averages of a 50 km grid cell around Decatur, IL. Source: NASA POWER (MERRA-2/IMERG reanalysis, daily point data), 2014–2023
If insurance covers the damage
Estimates against Decatur, IL's $6,790–$15,035 range. General information, not legal advice. How claims work →
| Your deductible | Weeks of Decatur, IL pay | Out-of-pocket |
|---|---|---|
| $500 | 0.51 weeks in Decatur, IL | $500 |
| $1,000 | 1.0 weeks in Decatur, IL | $1,000 |
| $2,500 | 2.6 weeks in Decatur, IL | $2,500 |
Decatur, IL against nearby Illinois cities
Neighbors run from 0.93× to 0.97× against Decatur's 0.97×. Closest: Springfield, about 37 mi, at $6,790 to $15,035.
Distances are to scale. Dot size is weeks of local pay for a typical asphalt roof, so a bigger dot means a heavier bill for that city's households.
| City | Weeks of pay | Price vs here | Contractors (verified) | Hail events, since 2017 |
|---|---|---|---|---|
| Decatur, IL (this page) | 11.2 | — | 18 (11) | 59 |
| Springfield roofers ≈37 mi from Decatur, IL |
8.6 | same | 22 (7) | 121 |
| Champaign roofers ≈42 mi from Decatur, IL |
9.8 | same | 27 (11) | 80 |
| Bloomington roofers ≈44 mi from Decatur, IL |
7.5 | same | 23 (11) | 66 |
| Peoria roofers ≈67 mi from Decatur, IL |
9.3 | -4% | 20 (10) | 91 |
| Joliet roofers ≈125 mi from Decatur, IL |
6.4 | same | 27 (12) | 93 |
| Rockford roofers ≈168 mi from Decatur, IL |
10.6 | same | 30 (18) | 67 |
On the cost index Decatur, IL sits at 0.97×, and a Decatur, IL roof takes 11.2 weeks of its pay, rank 22 of 209.
Storms behind Decatur, IL roof bills
Public NOAA records for Decatur, IL's county.
- 19days with hail of 1 inch or larger
- 2.5 inlargest hailstone reported
- 47days with gusts of 58 mph or more
Hail reports by month
NOAA logged 64 hail reports for Decatur, IL's county since 2014. March is the busiest month with 30 of them, 47% of the total.
Busiest three: March 30, May 10, June 10.
No hail was reported in 3 of the 12 months (January to October, in calendar order).
The costliest storm day on record in the county was August 19, 2025, with $1,000,000 of reported property damage.
All reported hail, wind and tornado damage there adds up to at least $2,527,000. It is a floor, because many reports carry no dollar estimate.
The county saw 25 tornadoes, the strongest rated EF2.
Source: NOAA Storm Events, 2014–June 2026Reported hail locations, Macon County
- 1+ in
- 1.75+ in
- 2.75+ in
Hail reports per year
| 2017 | 5 |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 25 |
| 2025 | 5 |
| 2026* | 10 |
59 recorded hail events across 9 full years plus 2026 to June represented in the data, about 5.4 per represented full year. 2024 had the most events among represented full years: 25.
The last bar is a partial year.
Source: NOAA Storm Events, 2014–June 2026 Hail risk lookup
What a re-roof costs against home values in Decatur, IL
Share of median home value
In Decatur, IL a typical re-roof takes 11.2% of the $97,300 median home value. Only 3 other cities carry a heavier ratio.
Source: Census ACS (Decatur city), 2019–2023How old the homes are
Share of homes built before 1980.
80.5% of Decatur, IL homes predate 1980. The median Decatur, IL home was built in 1960, so a roof never replaced there is 66 years old. Oldest-first, Decatur, IL stands #23 of 209.
Source: Census ACS (Decatur city), 2019–2023The Decatur, IL roofing market
Decatur's 2020 census population was 70,522, though the city has seen ongoing decline. The economy anchors on large industrial and agri-processing employers: Archer Daniels Midland employs roughly 4,000 people and Caterpillar Inc. about 3,150, alongside Decatur Memorial Hospital (1,903) and Decatur Public Schools (1,752). The aging industrial building stock and steady owner-occupied housing base sustain consistent demand for commercial and residential roofing contractors.
Roofing companies in Decatur, IL's county
- 7roofing establishments with paid employees
- 50paid roofing employees
- 71.4%have fewer than 5 employees
- 7.1employees per firm on average
71.4% of the county's roofing firms have under 5 staff, 8 points above the 190-city median of 64%. Firms average 7.1 paid staff.
Source: Census CBP, 2023On PickARoofer: 18 roofing contractors listed in Decatur, IL, 11 verified against a public registry. See them
What roofers earn here
A roofer in the Decatur, IL metro earns a median $74,640 a year, $3,260 below the $77,900 statewide median. 4 of 141 metros pay more than the Decatur, IL area.
Source: BLS OEWS, roofers, May 2025License and permit in Illinois
Decatur, IL roofers: State roofing license required.
Check a Decatur, IL roofer in the Illinois registry
11 contractors listed in Decatur, IL carry a Verified badge on PickARoofer.
Permit: Decatur, IL's building office. General information, not legal advice.
Source: verification methodAreas PickARoofer contractors serve in Decatur, IL
- Eastside
- Downtown Decatur
- Southwest Side
- West Adams
- University District
ZIP codes: 62520, 62521, 62525, 62530, 62534.
Roof cost in Decatur, IL: questions
In Decatur, IL, what does a roof replacement cost?
In Decatur, IL, how many weeks of pay is a new roof?
In Decatur, IL, should I repair or replace my roof?
For a Decatur, IL home, is a re-roof a big bill?
When does hail hit Decatur, IL?
Does a Decatur, IL roofer need a license?
For a Decatur, IL roof, who pulls the permit?
How many roofing firms work near Decatur, IL?
More for Decatur, IL
Cite this page
Data version: Prices compiled June 2026. Free to quote with credit under CC BY 4.0.