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Government contracts for plumbers in Washington
A snapshot of open federal, state, and local opportunities in Washington, updated daily. To search them and get daily matches for your business, sign up free.
About plumbers contracts in Washington
Plumbers contracts in Washington typically cover backflow-preventer testing, water-main repair, fixture replacement at federal buildings, sewer-line work at correctional facilities, and on-call plumbing IDIQs. Federal posts in this category fall under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), and the bulk of the work flows to the Army Corps of Engineers, the Federal Bureau of Prisons, and GSA. Small-business set-asides are common because most jobs sit well below the simplified acquisition threshold.
As of October 20, 2026, Washington has 16 open plumbers contracts in our database, with 14 added in the last 30 days. That's a steady cadence — enough flow to make automated alerting worthwhile rather than manual portal-checking. The most active buyers are King County (6 open posts) and VETERANS AFFAIRS, DEPARTMENT OF (6), with the rest spread across other federal civilian agencies, DoD components, and state and local departments active in Washington.
Beyond federal opportunities, much of the plumbers work in Washington is posted through Washington's Electronic Business Solution (WEBS), with recurring buyers including WSDOT, the University of Washington / Washington State University, and Sound Transit. Washington's Office of Minority and Women's Business Enterprises (OMWBE) certification is the gate for most diversity-set-aside spend at the state level. ContractRadar pulls federal postings from SAM.gov alongside state and local feeds so a plumbing contractor doesn't have to monitor each portal manually.
Top matching contracts in Washington
Spot Sewer Rehabilitation Unit Price Contract 6
Project Description: This Project consists of performing spot sewer rehabilitation to existing sewer and drainage pipes of varying depth and size, including Cured in Place Pipe rehabilitation. This in…
Z1DA--CON-NRM-668-22-106 Correct Domestic Water System
This notice serves as notification of an upcoming solicitation for construction Project #668-22-106, Correct Domestic Water System located at the Mann-Grandstaff Veterans Affairs Medical Center in Spo…
Repair Sanitary Waste Piping at the Mann-Grandstaff VA Medical Center
This notice serves as notification of an upcoming solicitation for construction Project #668-24-108, Repair Sanitary Waste Piping located at the Mann-Grandstaff Veterans Affairs Medical Center in Spok…
WO Construction Management Services for Water and Land Resources Division
The purpose of this contract is to provide construction management and inspection, and related services on a work order basis for King County (“County”). The exact disciplines required and the amount …
WO Construction Management Services for Water and Land Resources Division
The purpose of this contract is to provide construction management and inspection, and related services on a work order basis for King County (“County”). The exact disciplines required and the amount …
Shoreline Transfer Station Dust Control Project
The purpose of the contract is to install a new dust control system at the Shoreline Transfer Station. The work includes but is not limited to installation of a steel partition wall on mezzanine over …
Shoreline Transfer Station Dust Control Project
The purpose of the contract is to install a new dust control system at the Shoreline Transfer Station. The work includes but is not limited to installation of a steel partition wall on mezzanine over …
Shoreline Transfer Station Dust Control Project
The purpose of the contract is to install a new dust control system at the Shoreline Transfer Station. The work includes but is not limited to installation of a steel partition wall on mezzanine over …
(MATOC) Joint Base Lewis-McChord (JBLM), Washington
BACKGROUND: The Mission and Installation Contracting Command (MICC) / Directorate of Public Works (DPW) at Joint Base Lewis-McChord anticipates a continuing requirement for multidisciplinary mechanica…
Construction Management Services for Desimone Levee Major Repair Project
The purpose of this contract is to provide construction management services to King County Department of Natural Resources and Parks, Water and Land Resources Division (“County”) which includes constr…
RFQual - 26-006 - On-Call Engineering Services
Please note Amendment #4 to the solicitation extending the closing date to October 26, 2026 - 2:00p.m. PDT. Please note Amendment #3 to the solicitation extending the closing date to September 30, 202…
ON-Call Professional Services for the Cowlitz Falls Project
The Public Utility District No. 1 of Lewis County (DISTRICT) is seeking qualified engineering and professional consulting firms to provide on-call, as-needed professional services supporting the Cowli…