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

There is no single figure. Active federal determinations for Idaho publish 14 insulator (heat & frost) classification rates ranging from $20.13 to $20.17 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 Idaho have a published insulator (heat & frost) rate?

25 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. Idaho may set its own prevailing wage rates for state and locally funded work; the state law summary is on the Idaho prevailing wage page.

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Insulator (Heat & Frost) prevailing wage rates in Idaho

Federal Davis-Bacon rates published in 14 active determinations, 2026

Active federal Davis-Bacon determinations for Idaho publish 14 insulator (heat & frost) classification rates, across 14 determinations covering 25 counties.
Those published base rates run from $20.13 to $20.17 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 Idaho: 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 Idaho'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

ID20260009 rev 2 · Building · Blaine

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-002 DOL wage survey rate

Official document: ID20260009 on SAM.gov.

ID20260010 rev 1 · Building · Bonner

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-003 DOL wage survey rate

Official document: ID20260010 on SAM.gov.

ID20260011 rev 1 · Building · Boundary

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-004 DOL wage survey rate

Official document: ID20260011 on SAM.gov.

ID20260013 rev 2 · Building · Caribou

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-006 DOL wage survey rate

Official document: ID20260013 on SAM.gov.

ID20260014 rev 1 · Building · Clearwater

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-007 DOL wage survey rate

Official document: ID20260014 on SAM.gov.

ID20260015 rev 1 · Building · Latah

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.17	1.79	SUID2010-008 DOL wage survey rate

Official document: ID20260015 on SAM.gov.

ID20260016 rev 2 · Building · Madison

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-009 DOL wage survey rate

Official document: ID20260016 on SAM.gov.

ID20260017 rev 2 · Building · Minidoka

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-010 DOL wage survey rate

Official document: ID20260017 on SAM.gov.

ID20260018 rev 1 · Building · Shoshone

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-011 DOL wage survey rate

Official document: ID20260018 on SAM.gov.

ID20260019 rev 2 · Building · Twin Falls

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-012 DOL wage survey rate

Official document: ID20260019 on SAM.gov.

ID20260020 rev 1 · Building · Adams, Elmore, Payette, Valley, Washington

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-013 DOL wage survey rate

Official document: ID20260020 on SAM.gov.

ID20260021 rev 2 · Building · Bear Lake, Bingham, Fremont, Lemhi, Oneida, Teton

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-014 DOL wage survey rate

Official document: ID20260021 on SAM.gov.

ID20260023 rev 2 · Building · Clark, Custer

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$20.13	1.80	SUID2010-016 DOL wage survey rate

Official document: ID20260023 on SAM.gov.

ID20260024 rev 1 · Building · Idaho, Lewis

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR	$20.13	1.80	SUID2010-017 DOL wage survey rate

Official document: ID20260024 on SAM.gov.

Where to go next

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

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