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

There is no single figure. Active federal determinations for Iowa publish 52 insulator (heat & frost) classification rates ranging from $16.20 to $38.26 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 Iowa 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. Iowa may set its own prevailing wage rates for state and locally funded work; the state law summary is on the Iowa prevailing wage page.

Home › Trades › Insulator (Heat & Frost) › Iowa

Insulator (Heat & Frost) prevailing wage rates in Iowa

Federal Davis-Bacon rates published in 52 active determinations, 2026

Active federal Davis-Bacon determinations for Iowa publish 52 insulator (heat & frost) classification rates, across 52 determinations covering 99 counties.
Those published base rates run from $16.20 to $38.26 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.
Last determination revision affecting insulator (heat & frost) rates in Iowa: 2026-05-18.

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 Iowa'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

IA20260029 rev 1 · Building · Adair

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-002 DOL wage survey rate

Official document: IA20260029 on SAM.gov.

IA20260030 rev 1 · Building · Adams

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-003 DOL wage survey rate

Official document: IA20260030 on SAM.gov.

IA20260031 rev 1 · Building · Allamakee

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.09	4.67	SUIA2016-004 DOL wage survey rate

Official document: IA20260031 on SAM.gov.

IA20260032 rev 1 · Building · Appanoose

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-005 DOL wage survey rate

Official document: IA20260032 on SAM.gov.

IA20260033 rev 1 · Building · Audubon

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-006 DOL wage survey rate

Official document: IA20260033 on SAM.gov.

IA20260034 rev 1 · Building · Boone

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-007 DOL wage survey rate

Official document: IA20260034 on SAM.gov.

IA20260035 rev 1 · Building · Carroll

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-008 DOL wage survey rate

Official document: IA20260035 on SAM.gov.

IA20260036 rev 1 · Building · Cedar

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-009 DOL wage survey rate

Official document: IA20260036 on SAM.gov.

IA20260037 rev 1 · Building · Cerro Gordo

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$17.68	4.36	SUIA2016-010 DOL wage survey rate

Official document: IA20260037 on SAM.gov.

IA20260038 rev 1 · Building · Clinton

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-011 DOL wage survey rate

Official document: IA20260038 on SAM.gov.

IA20260039 rev 2 · Building · Crawford

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-012 DOL wage survey rate

Official document: IA20260039 on SAM.gov.

IA20260040 rev 1 · Building · Davis

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-013 DOL wage survey rate

Official document: IA20260040 on SAM.gov.

IA20260041 rev 1 · Building · Des Moines

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-014 DOL wage survey rate

Official document: IA20260041 on SAM.gov.

IA20260042 rev 1 · Building · Dickinson

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.35	2.88	SUIA2016-015 DOL wage survey rate

Official document: IA20260042 on SAM.gov.

IA20260043 rev 1 · Building · Floyd

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.09	4.67	SUIA2016-016 DOL wage survey rate

Official document: IA20260043 on SAM.gov.

IA20260044 rev 1 · Building · Howard

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.09	4.67	SUIA2016-017 DOL wage survey rate

Official document: IA20260044 on SAM.gov.

IA20260045 rev 1 · Building · Iowa

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-018 DOL wage survey rate

Official document: IA20260045 on SAM.gov.

IA20260046 rev 1 · Building · Jasper

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-019 DOL wage survey rate

Official document: IA20260046 on SAM.gov.

IA20260047 rev 1 · Building · Lee

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-020 DOL wage survey rate

Official document: IA20260047 on SAM.gov.

IA20260048 rev 1 · Building · Marion

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-021 DOL wage survey rate

Official document: IA20260048 on SAM.gov.

IA20260049 rev 1 · Building · Marshall

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-022 DOL wage survey rate

Official document: IA20260049 on SAM.gov.

IA20260050 rev 1 · Building · Muscatine

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$24.80	10.17	SUIA2016-023 DOL wage survey rate

Official document: IA20260050 on SAM.gov.

IA20260051 rev 1 · Building · Page

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-024 DOL wage survey rate

Official document: IA20260051 on SAM.gov.

IA20260052 rev 1 · Building · Poweshiek

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-025 DOL wage survey rate

Official document: IA20260052 on SAM.gov.

IA20260053 rev 1 · Building · Sioux

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.35	2.88	SUIA2016-026 DOL wage survey rate

Official document: IA20260053 on SAM.gov.

IA20260054 rev 1 · Building · Union

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-027 DOL wage survey rate

Official document: IA20260054 on SAM.gov.

IA20260055 rev 1 · Building · Wapello

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-028 DOL wage survey rate

Official document: IA20260055 on SAM.gov.

IA20260056 rev 1 · Building · Webster

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.35	2.88	SUIA2016-029 DOL wage survey rate

Official document: IA20260056 on SAM.gov.

IA20260057 rev 1 · Building · Buena Vista, Calhoun, Cherokee, Clay, Emmet, Hamilton and 13 more

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.35	2.88	SUIA2016-031 DOL wage survey rate

Official document: IA20260057 on SAM.gov.

IA20260058 rev 1 · Building · Cass, Clarke

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-033 DOL wage survey rate

Official document: IA20260058 on SAM.gov.

IA20260059 rev 1 · Building · Clayton, Delaware

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.09	4.67	SUIA2016-034 DOL wage survey rate

Official document: IA20260059 on SAM.gov.

IA20260060 rev 1 · Building · Decatur, Fremont, Greene, Lucas, Monona, Montgomery and 4 more

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.01	4.19	SUIA2016-035 DOL wage survey rate

Official document: IA20260060 on SAM.gov.

IA20260061 rev 1 · Building · Henry, Jackson, Jefferson, Keokuk, Louisa, Mahaska and 3 more

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$19.04	7.32	SUIA2016-036 DOL wage survey rate

Official document: IA20260061 on SAM.gov.

IA20260062 rev 1 · Building · Black Hawk

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$23.28	8.91	SUIA2016-037 DOL wage survey rate

Official document: IA20260062 on SAM.gov.

IA20260063 rev 1 · Building · Bremer

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$23.28	8.91	SUIA2016-038 DOL wage survey rate

Official document: IA20260063 on SAM.gov.

IA20260064 rev 1 · Building · Dallas

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.45	4.04	SUIA2016-039 DOL wage survey rate

Official document: IA20260064 on SAM.gov.

IA20260065 rev 1 · Building · Dubuque

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$36.06	24.35	ASBE0081-001 collectively bargained (union) rate

Official document: IA20260065 on SAM.gov.

IA20260066 rev 1 · Building · Grundy

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$23.28	8.91	SUIA2016-041 DOL wage survey rate

Official document: IA20260066 on SAM.gov.

IA20260067 rev 1 · Building · Harrison

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$38.26	20.54	ASBE0039-002 collectively bargained (union) rate

Official document: IA20260067 on SAM.gov.

IA20260068 rev 1 · Building · Johnson

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.20	8.14	SUIA2016-043 DOL wage survey rate

Official document: IA20260068 on SAM.gov.

IA20260069 rev 1 · Building · Linn

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$36.06	24.35	ASBE0081-001 collectively bargained (union) rate

Official document: IA20260069 on SAM.gov.

IA20260070 rev 1 · Building · Mills

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$38.26	20.54	ASBE0039-002 collectively bargained (union) rate

Official document: IA20260070 on SAM.gov.

IA20260071 rev 1 · Building · Polk

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.17	4.01	SUIA2016-046 DOL wage survey rate

Official document: IA20260071 on SAM.gov.

IA20260072 rev 1 · Building · Pottawattamie

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$38.26	20.54	ASBE0039-002 collectively bargained (union) rate

Official document: IA20260072 on SAM.gov.

IA20260073 rev 1 · Building · Scott

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$36.06	24.35	ASBE0081-001 collectively bargained (union) rate

Official document: IA20260073 on SAM.gov.

IA20260074 rev 1 · Building · Story

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.16	3.94	SUIA2016-049 DOL wage survey rate

Official document: IA20260074 on SAM.gov.

IA20260075 rev 1 · Building · Warren

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.45	4.04	SUIA2016-050 DOL wage survey rate

Official document: IA20260075 on SAM.gov.

IA20260076 rev 1 · Building · Washington

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$16.70	8.12	SUIA2016-051 DOL wage survey rate

Official document: IA20260076 on SAM.gov.

IA20260077 rev 1 · Building · Woodbury

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$23.50	8.25	SUIA2016-052 DOL wage survey rate

Official document: IA20260077 on SAM.gov.

IA20260078 rev 1 · Building · Benton, Jones

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$36.06	24.35	ASBE0081-001 collectively bargained (union) rate

Official document: IA20260078 on SAM.gov.

IA20260079 rev 1 · Building · Guthrie, Madison

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.45	4.04	SUIA2016-054 DOL wage survey rate

Official document: IA20260079 on SAM.gov.

IA20260080 rev 1 · Building · Buchanan, Butler, Chickasaw, Fayette, Franklin, Hardin and 3 more

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION)	$18.09	4.67	SUIA2016-055 DOL wage survey rate

Official document: IA20260080 on SAM.gov.

Where to go next

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

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