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

There is no single figure. Active federal determinations for South Dakota publish 29 insulator (heat & frost) classification rates ranging from $8.75 to $55.34 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 South Dakota have a published insulator (heat & frost) rate?

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

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Insulator (Heat & Frost) prevailing wage rates in South Dakota

Federal Davis-Bacon rates published in 29 active determinations, 2026

Active federal Davis-Bacon determinations for South Dakota publish 29 insulator (heat & frost) classification rates, across 29 determinations covering 66 counties.
Those published base rates run from $8.75 to $55.34 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, Residential.
Last determination revision affecting insulator (heat & frost) rates in South Dakota: 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 South Dakota'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

SD20260002 rev 1 · Residential · Lincoln, Minnehaha, Pennington

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR (BATT)	$8.75	0.00	SUSD2000-008 DOL wage survey rate

Official document: SD20260002 on SAM.gov.

SD20260004 rev 2 · Building · Aurora

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260004 on SAM.gov.

SD20260005 rev 2 · Building · Brookings

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260005 on SAM.gov.

SD20260006 rev 2 · Building · Brown

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260006 on SAM.gov.

SD20260007 rev 2 · Building · Buffalo

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260007 on SAM.gov.

SD20260008 rev 1 · Building · Butte

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260008 on SAM.gov.

SD20260009 rev 1 · Building · Campbell

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260009 on SAM.gov.

SD20260010 rev 2 · Building · Charles Mix

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260010 on SAM.gov.

SD20260011 rev 2 · Building · Codington

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260011 on SAM.gov.

SD20260012 rev 1 · Building · Dewey

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260012 on SAM.gov.

SD20260013 rev 1 · Building · Haakon

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260013 on SAM.gov.

SD20260014 rev 1 · Building · Harding

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260014 on SAM.gov.

SD20260015 rev 1 · Building · Hughes

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260015 on SAM.gov.

SD20260016 rev 1 · Building · Lawrence

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260016 on SAM.gov.

SD20260017 rev 2 · Building · Oglala Lakota

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260017 on SAM.gov.

SD20260018 rev 2 · Building · Todd

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260018 on SAM.gov.

SD20260019 rev 1 · Building · Walworth

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260019 on SAM.gov.

SD20260020 rev 1 · Building · Yankton

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260020 on SAM.gov.

SD20260021 rev 2 · Building · Beadle, Clark, Day, Deuel, Edmunds, Faulk and 10 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260021 on SAM.gov.

SD20260022 rev 2 · Building · Bennett, Brule, Fall River, Gregory, Jackson, Jones and 3 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260022 on SAM.gov.

SD20260023 rev 2 · Building · Bon Homme, Clay, Davison, Douglas, Hanson, Hutchinson and 4 more

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260023 on SAM.gov.

SD20260024 rev 1 · Building · Corson, Perkins, Potter, Stanley, Sully, Ziebach

Classification as published	Base rate	Fringes	Rate schedule
ASBESTOS WORKER/HEAT & FROST INSULATOR (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$55.34	34.03	ASBE0034-007 collectively bargained (union) rate

Official document: SD20260024 on SAM.gov.

SD20260025 rev 1 · Building · Custer

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-022 DOL wage survey rate

Official document: SD20260025 on SAM.gov.

SD20260026 rev 2 · Building · Lincoln

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-023 DOL wage survey rate

Official document: SD20260026 on SAM.gov.

SD20260027 rev 1 · Building · Meade

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-024 DOL wage survey rate

Official document: SD20260027 on SAM.gov.

SD20260028 rev 2 · Building · Minnehaha

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-025 DOL wage survey rate

Official document: SD20260028 on SAM.gov.

SD20260029 rev 1 · Building · Pennington

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-026 DOL wage survey rate

Official document: SD20260029 on SAM.gov.

SD20260030 rev 2 · Building · Union

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-027 DOL wage survey rate

Official document: SD20260030 on SAM.gov.

SD20260031 rev 2 · Building · McCook, Turner

Classification as published	Base rate	Fringes	Rate schedule
INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION)	$15.20	0.00	SUSD2012-028 DOL wage survey rate

Official document: SD20260031 on SAM.gov.

Where to go next

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

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