What is the Davis-Bacon prevailing wage for a insulator (heat & frost) in Illinois?

There is no single figure. Active federal determinations for Illinois publish 14 insulator (heat & frost) classification rates ranging from $36.06 to $55.02 per hour before fringe benefits. The rate that applies depends on the county, the type of construction and the wage determination incorporated into the contract.

How many counties in Illinois have a published insulator (heat & frost) rate?

99 of the counties covered by active federal determinations list at least one insulator (heat & frost) classification.

Do these rates apply to state-funded projects?

No. These are federal Davis-Bacon rates, which apply to federally funded or assisted construction. Illinois may set its own prevailing wage rates for state and locally funded work; the state law summary is on the Illinois prevailing wage page.

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Insulator (Heat & Frost) prevailing wage rates in Illinois

Federal Davis-Bacon rates published in 7 active determinations, 2026

Active federal Davis-Bacon determinations for Illinois publish 14 insulator (heat & frost) classification rates, across 7 determinations covering 99 counties.
Those published base rates run from $36.06 to $55.02 an hour before fringe benefits. Which one applies to a job depends on its county, its construction type and the determination written into the contract.
Construction types covered: Building, Heavy, Highway, Residential.
Last determination revision affecting insulator (heat & frost) rates in Illinois: 2026-05-21.

The official source: binding Davis-Bacon and Service Contract Act wage determinations are published by the U.S. Department of Labor at SAM.gov Wage Determinations. This site indexes them and links every determination to its official document - the determination incorporated into a contract governs.

This page collects every classification in Illinois's active federal determinations that is a form of insulator (heat & frost) work (mechanical insulation and asbestos abatement work) and shows the rate published for it. Determinations name a classification the way the underlying union agreement or wage survey named it, so the wording varies between them; the rate and the fringe are reproduced exactly as published.

Published rates by determination

IL20260001 rev 5 · Building · Adams, Bond, Boone, Brown, Bureau, Calhoun and 40 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS (BUREAU, DE KALB, L	$55.02	35.75	ASBE0017-003 collectively bargained (union) rate
ASBESTOS WORKER/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS (MARSHALL, MCLEAN,	$45.91	33.45	ASBE0017-007 collectively bargained (union) rate
ASBESTOS WORKERS/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS (BOONE, OGLE, STEP	$45.88	38.15	ASBE0019-003 collectively bargained (union) rate
ASBESTOS WORKERS/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS (CARROLL, HANCOCK,	$36.06	24.35	ASBE0081-002 collectively bargained (union) rate

Official document: IL20260001 on SAM.gov.

IL20260002 rev 4 · Building · Alexander, Champaign, Christian, Clark, Clay, Coles and 35 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKERS/INSULATOR: INCLUDES THE APPLICATION, INSTALLATION, AND CLEANUP OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHINGS TO ALL TYPES OF MECHANIC	$43.48	27.24	ASBE0001-004 collectively bargained (union) rate
ASBESTOS WORKER/INSULATOR (INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS)	$55.02	35.75	ASBE0017-001 collectively bargained (union) rate
ASBESTOS WORKER/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS; PROTECTIVE COVERINGS, COATINGS, AND FINISHINGS TO ALL TYPES OF MECHANICAL SYSTEMS (FORD AND IROQUOI	$55.02	35.75	ASBE0017-006 collectively bargained (union) rate
ASBESTOS WORKER/HEAT & FROST INSULATOR: INCLUDES APPLICATION OF ALL INSULATING MATERIALS PROTECTIVE COVERINGS, COATINGS AND FINISHINGS TO ALL TYPES OF MECHANCIAL SYSTEMS (CHAMPAIGN	$40.20	26.78	ASBE0018-002 collectively bargained (union) rate
ASBESTOS WORKERS/INSULATOR: INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS; PROTECTIVE COVERINGS, COATINGS, AND FINISHINGS TO ALL TYPES OF MECHANICAL SYSTEMS (CLAY, COLES, CR	$38.19	24.24	ASBE0037-003 collectively bargained (union) rate

Official document: IL20260002 on SAM.gov.

IL20260004 rev 2 · Building, Residential · Sangamon

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$43.48	27.24	ASBE0001-002 collectively bargained (union) rate

Official document: IL20260004 on SAM.gov.

IL20260006 rev 1 · Building, Residential · Kankakee

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/INSULATOR (INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS; PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS)	$55.02	35.75	ASBE0017-004 collectively bargained (union) rate

Official document: IL20260006 on SAM.gov.

IL20260007 rev 2 · Building, Residential · Madison, St Clair

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$43.48	27.24	ASBE0001-003 collectively bargained (union) rate

Official document: IL20260007 on SAM.gov.

IL20260008 rev 2 · Building, Residential · Du Page, Grundy, Kane, Kendall, Lake, McHenry and 1 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/INSULATOR (INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS)	$55.02	35.75	ASBE0017-005 collectively bargained (union) rate

Official document: IL20260008 on SAM.gov.

IL20260009 rev 2 · Building, Heavy, Highway, Residential · Cook

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/INSULATOR (INCLUDES THE APPLICATION OF ALL INSULATING MATERIALS, PROTECTIVE COVERINGS, COATINGS, AND FINISHES TO ALL TYPES OF MECHANICAL SYSTEMS)	$55.02	35.75	ASBE0017-001 collectively bargained (union) rate

Official document: IL20260009 on SAM.gov.

Where to go next

Insulator (Heat & Frost) rates in every state · Illinois prevailing wage and state law · Illinois determinations by county · pay calculator

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