What is the Davis-Bacon prevailing wage for a plumber in District of Columbia?

There is no single figure. Active federal determinations for District of Columbia publish 3 plumber classification rates ranging from $29.60 to $53.30 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 District of Columbia have a published plumber rate?

1 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. District of Columbia may set its own prevailing wage rates for state and locally funded work; the state law summary is on the District of Columbia prevailing wage page.

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Plumber prevailing wage rates in District of Columbia

Federal Davis-Bacon rates published in 3 active determinations, 2026

Active federal Davis-Bacon determinations for District of Columbia publish 3 plumber classification rates, across 3 determinations covering 1 county.
Those published base rates run from $29.60 to $53.30 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 plumber rates in District of Columbia: 2026-08-27.

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 District of Columbia'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

DC20260001 rev 6 · Heavy, Highway · Washington, D.C.

Classification as published	Base rate	Fringes	Rate schedule
PLUMBERS (PAID HOLIDAYS: LABOR DAY, VETERANS' DAY, THANKSGIVING DAY AND THE DAY AFTER THANKSGIVING, CHRISTMAS DAY, NEW YEAR'S DAY, MARTIN LUTHER KING'S BIRTHDAY, MEMORIAL DAY AND T	$53.30	23.71	PLUM0005-001 collectively bargained (union) rate

Official document: DC20260001 on SAM.gov.

DC20260002 rev 3 · Building · Washington, D.C.

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER A. PAID HOLIDAYS: LABOR DAY, VETERANS' DAY, THANKSGIVING DAY AND THE DAY AFTER THANKSGIVING, CHRISTMAS DAY, NEW YEAR'S DAY, MARTIN LUTHER KING'S BIRTHDAY, MEMORIAL DAY AND	$53.30	23.71	PLUM0005-010 collectively bargained (union) rate

Official document: DC20260002 on SAM.gov.

DC20260003 rev 1 · Residential · Washington, D.C.

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER A. PAID HOLIDAYS: LABOR DAY, VETERANS' DAY, THANKSGIVING DAY AND THE DAY AFTER THANKSGIVING, CHRISTMAS DAY, NEW YEAR'S DAY, MARTIN LUTHER KING'S BIRTHDAY, MEMORIAL DAY AND	$29.60	14.71	PLUM0005-009 collectively bargained (union) rate

Official document: DC20260003 on SAM.gov.

Where to go next

Plumber rates in every state · District of Columbia prevailing wage and state law · District of Columbia determinations by county · pay calculator

Other trades in District of Columbia

Electrician · Pipefitter · Sheet Metal Worker · Carpenter · Construction Laborer · Heavy Equipment Operator · Truck Driver · Ironworker · Cement Mason / Concrete Finisher · Bricklayer / Mason · Painter · Insulator (Heat & Frost) · Line Constructor / Lineman