Prevailing wage rates · Illinois · Wage determination
Prevailing wage rates: Williamson County, Illinois
Residential construction · IL20260024 modification 3, published May 18, 2026
The short answer
This sheet sets 11 classifications for residential work in Williamson County, Illinois. Each line is a basic hourly rate plus a fringe rate, and the sum is the minimum you must pay for that work, from $12.67 an hour (roofer) to $77.35 (plumber: excluding hvac (northern half)). Your contract may lock an earlier modification.
Scope
RESIDENTIAL CONSTRUCTION PROJECTS (consisting of single family homes and apartments up to and including 4 stories)
What changed this year
First published January 2, 2026, this sheet is now on modification 3, and its rates have changed in 2 modifications. Of the 11 rates we can follow line by line from the first publication to today, 2 are higher.
If you bid the job or set pay from an earlier copy, find your trades below. The rates that bind you are the ones in the modification written into your contract.
Latest change
May 18, 2026 · modification 3
Classification names reworded; no change among the 11 lines we could match
SAM.gov reworded this sheet’s classification names in this modification, so not every line can be matched to the one before. Only lines matched with certainty are compared here; nothing is guessed. If your trade is not listed, compare it against your contract’s copy.
Earlier modifications
January 16, 2026 · modification 21 rate raised
- Plumber: 1 rate raised by $3.00 an hour
Every line that changed (1)
Classification Was Now Change PLUMBER (Excluding HVAC) $50.80 + $22.95 $52.80 + $23.95 +$3.00 (+4.1%) January 9, 2026 · modification 11 rate raised
- Plumber: 1 rate raised by $3.50 an hour
Every line that changed (1)
Classification Was Now Change PLUMBER (Excluding HVAC) $45.75 + $28.10 $48.50 + $28.85 +$3.50 (+4.7%)
Compared line by line from each modification as published on SAM.gov. A line we could not pair with certainty is left out rather than guessed.
Rates by classification
These are the rates in modification 3 as published on SAM.gov. The determination and modification written into your contract are the ones that bind you; check that number before relying on this table. Total is the basic rate plus the fringe. Source is the agreement or survey the rate came from and its year; a survey year long past means the rate has not been surveyed since. A marker means the group changed in this modification. In the Since column, a dash means SAM.gov reworded the line during the year and it cannot be matched to the first publication with certainty. A dagger (†) means the fringe carries a footnote or percentage the total does not include; read the group’s notes.
| Classification | Basic rate | Fringe | Total | Since Jan 2 | Source |
|---|---|---|---|---|---|
| BRIL0008-013 · Bricklayers agreement, May 1, 2019 | |||||
| BRICKLAYER | $30.79 | $21.69 | $52.48 | no change | Agreement, 2019 |
| CARP0640-002 · Carpenters agreement, May 1, 2021 | |||||
| CARPENTER/DRYWALL HANGER (INCLUDING BATT INSULATOR) | $31.30 | $18.90 | $50.20 | no change | Agreement, 2021 |
| ELEC0702-009 · Electrical Workers (IBEW) agreement, January 1, 2020 | |||||
| ELECTRICIAN (WORK NOT TO EXCEED 8-PLEX FAMILY HOUSING UNITS) | $32.58 | $12.11 | $44.69 | no change | Agreement, 2020 |
| ELECTRICIAN (ALL OTHER WORK) | $44.99 | $23.48 | $68.47 | no change | Agreement, 2020 |
| ENGI0318-002 · Operating Engineers agreement, April 1, 2025 | |||||
| BACKHOE | $40.13 | $32.00 | $72.13 | no change | Agreement, 2025 |
| LABO0773-001 · Laborers agreement, April 1, 2023 | |||||
| LABORER | $31.51 | $27.03 | $58.54 | no change | Agreement, 2023 |
| PAIN0032-003 · Painters and Allied Trades agreement, September 1, 2021 | |||||
PAINTER: BRUSH, SPRAY…Full textPAINTER: BRUSH, SPRAY, DRYWALL FINISHING, AND TAPERS EPOXY OR TOXIC-LEAD-BASED PAINT WORK-$1.00 PREMIMUM | $24.52 | $18.78 | $43.30 | no change | Agreement, 2021 |
| PLAS0143-014 · Plasterers and Cement Masons agreement, April 1, 2019 | |||||
| CEMENT MASONS & PLASTERERS | $30.83 | $18.06 | $48.89 | no change | Agreement, 2019 |
| PLUM0160-007 · Plumbers and Pipefitters agreement, January 1, 2026 | |||||
| PLUMBER: EXCLUDING HVAC (SOUTHERN HALF) | $52.80 | $23.95 | $76.75 | +$3.00 (+4.1%) | Agreement, 2026 |
| PLUM0551-004 · Plumbers and Pipefitters agreement, January 1, 2026 | |||||
| PLUMBER: EXCLUDING HVAC (NORTHERN HALF) | $48.50 | $28.85 | $77.35 | +$3.50 (+4.7%) | Agreement, 2026 |
| SUIL1996-034 · Survey of contractors in IL, March 14, 1996 | |||||
| ROOFER | $12.67 | $0.00 | $12.67 | no change | Survey, 1996 |
Modification history
| Modification 2 | January 16, 2026 |
| Modification 3 | May 18, 2026 (current) |
Published by the Wage and Hour Division; read from sam.gov. The sheet is checked for a newer modification each day. Contracts awarded since January 1, 2017 also carry Executive Order 13706 paid sick leave (one hour per 30 worked, up to 56 a year).
Questions people ask
- Which rate do I pay on IL20260024?
- The line for the classification of work actually performed: the basic rate plus the fringe. You may pay the fringe into benefit plans, as cash on every hour, or a mix. Overtime after 40 hours is 1.5 times the basic rate; fringe is paid on every hour and never multiplied.
- My trade is not on this sheet. What do I do?
- Do not borrow the nearest name. Ask the contracting agency for a conformance on Standard Form 1444 before the first week of that work, and note it as pending on the payroll.
- Does modification 3 apply to my contract?
- Only if it was in force when your contract was awarded (generally at bid opening). An earlier modification locked into the contract keeps applying, except on option years, added scope and indefinite-quantity contracts. The number and modification are on the first page of the exhibit in your contract.
How to read a wage determination · Paying the fringe in cash or through plans · Overtime on these rates · Fringe credit calculator
Put these rates on a certified payroll.
Start here and IL20260024 is already filled in when you set up the job. CertifiedHours loads this sheet, checks every line against it as you type hours, and prints the WH-347. Free for one payroll a month.
Start a payroll on this sheetOn this sheet
- 11 classifications in 10 rate groups
- 9 from agreements, 1 from surveys
- Counties: Williamson