1.  [Wage rates](https://wagepilot.ai/prevailing-wage)
2.  [Illinois](https://wagepilot.ai/prevailing-wage/illinois)
3.  Sprinkler fitters

Illinois prevailing wage rates

# Sprinkler fitters: Davis-Bacon rates in Illinois

4 sprinkler fitter rates across 3 of Illinois’s 70 active wage determinations. Base rates run from $50.51 to $63.25 an hour (median $58.74), before fringe. The right rate depends on the county, the construction type and the work performed.

Classification

Determination

Counties

Type

Base

Fringe

SPRINKLER FITTERS (WITHIN A 30 MILE RADIUS OF ST. LOUIS, MO)

[IL20260007](https://wagepilot.ai/prevailing-wage/illinois/il20260007)

Madison, St Clair Counties

Building, Residential

$54.23

$31.45

SPRINKLER FITTER (REMAINDER OF COUNTIES)

[IL20260007](https://wagepilot.ai/prevailing-wage/illinois/il20260007)

Madison, St Clair Counties

Building, Residential

$50.51

$30.25

SPRINKLER FITTER (DUPAGE, KANE, KENDALL, LAKE, MCHENRY, AND WILL COUNTIES)

[IL20260008](https://wagepilot.ai/prevailing-wage/illinois/il20260008)

Du Page, Kane and 5 more counties

Building, Residential

$63.25

$36.50

SPRINKLER FITTER

[IL20260009](https://wagepilot.ai/prevailing-wage/illinois/il20260009)

Cook County

Building, Heavy, Highway, Residential

$63.25

$36.50

Classifications are shortened to their first line here; the determination page has the full text, including scope notes and zone conditions.

**About these rates**  
WagePilot mirrors Davis-Bacon general wage determinations from SAM.gov, the official source, and re-checks each one daily. The wage determination incorporated in your contract governs, including its modification number, footnotes and any conformed classifications. WagePilot reviews payroll; it does not file, certify or give legal advice.

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Source: https://wagepilot.ai/prevailing-wage/illinois/sprinkler-fitters (last updated 2026-10-22)