What is the Davis-Bacon prevailing wage for a plumber in New Hampshire?

There is no single figure. Active federal determinations for New Hampshire publish 11 plumber classification rates ranging from $11.70 to $26.72 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 New Hampshire have a published plumber rate?

10 of the counties covered by active federal determinations list at least one plumber classification.

Do these rates apply to state-funded projects?

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

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Plumber prevailing wage rates in New Hampshire

Federal Davis-Bacon rates published in 11 active determinations, 2026

Active federal Davis-Bacon determinations for New Hampshire publish 11 plumber classification rates, across 11 determinations covering 10 counties.
Those published base rates run from $11.70 to $26.72 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 plumber rates in New Hampshire: 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 New Hampshire's active federal determinations that is a form of plumber work (potable water, waste and gas piping) 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

NH20260001 rev 1 · Residential · Belknap, Carroll, Cheshire, Coos, Grafton, Merrimack and 1 more

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$12.57	0.00	SUNH1994-001 DOL wage survey rate

Official document: NH20260001 on SAM.gov.

NH20260002 rev 1 · Residential · Hillsborough, Rockingham, Strafford

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER (INCLUDES HVAC PIPING)	$11.70	0.00	SUNH1994-002 DOL wage survey rate

Official document: NH20260002 on SAM.gov.

NH20260015 rev 1 · Building · Belknap

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$25.24	8.60	SUNH2015-001 DOL wage survey rate

Official document: NH20260015 on SAM.gov.

NH20260016 rev 1 · Building · Carroll

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, INCLUDES HVAC PIPE INSTALLATION	$24.49	9.72	SUNH2015-002 DOL wage survey rate

Official document: NH20260016 on SAM.gov.

NH20260017 rev 1 · Building · Coos

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, INCLUDES HVAC PIPE INSTALLATION	$24.49	9.72	SUNH2015-003 DOL wage survey rate

Official document: NH20260017 on SAM.gov.

NH20260018 rev 1 · Building · Grafton

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, INCLUDES HVAC PIPE INSTALLATION	$24.77	10.27	SUNH2015-004 DOL wage survey rate

Official document: NH20260018 on SAM.gov.

NH20260019 rev 1 · Building · Merrimack

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$25.24	8.60	SUNH2015-005 DOL wage survey rate

Official document: NH20260019 on SAM.gov.

NH20260020 rev 1 · Building · Cheshire, Sullivan

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$25.77	9.23	SUNH2015-006 DOL wage survey rate

Official document: NH20260020 on SAM.gov.

NH20260021 rev 1 · Building · Hillsborough

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$23.97	9.68	SUNH2015-007 DOL wage survey rate

Official document: NH20260021 on SAM.gov.

NH20260022 rev 1 · Building · Rockingham

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, INCLUDES HVAC PIPE INSTALLATION	$26.72	5.56	SUNH2015-008 DOL wage survey rate

Official document: NH20260022 on SAM.gov.

NH20260023 rev 1 · Building · Strafford

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, INCLUDES HVAC PIPE INSTALLATION	$24.60	9.40	SUNH2015-009 DOL wage survey rate

Official document: NH20260023 on SAM.gov.

Where to go next

Plumber rates in every state · New Hampshire prevailing wage and state law · New Hampshire determinations by county · pay calculator

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