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Government contracts for plumbers in California
A snapshot of open federal, state, and local opportunities in California, updated daily. To search them and get daily matches for your business, sign up free.
About plumbers contracts in California
Plumbers contracts in California 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, California has 86 open plumbers contracts in our database, with 68 added in the last 30 days. That's enough volume that a focused small business can win recurring work in this state without ever leaving its home market. The most active buyers are Department of Transportation (11 open posts) and Department of Water Resources (4), with the rest spread across other federal civilian agencies, DoD components, and state and local departments active in California.
Beyond federal opportunities, much of the plumbers work in California is posted through Cal eProcure, with recurring buyers including Caltrans, the University of California system, the California Department of General Services, and the City and County of Los Angeles. California's SB/DVBE certification programs reserve a target share of state spend for certified small and disabled-veteran-owned firms — getting certified is usually step one. 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 California
Install and repair drainage system.
07-LA-210-R28.9/R31.9 LOS ANGELES COUNTY IN PASADENA, LOS ANGELES, AND ARCADIA FROM 0.3 MILE EAST OF SAN GABRIEL BOULEVARD TO SANTA ANITA AVENUE
Alvarado Trunk Sewer & Water Main Relocations
TRADES REQUESTED, BUT NOT LIMITED TO, THE FOLLOWING WORK ITEMS: 237110, 237310, 238110, 541620, 561730 Electrical Work, Traffic control, Material, Rock and Sand, Pipe & Fittings, Saw Cutting, Shoring …
IFB Plumbing Repair and Replacement Services in Yuba County
Contractor shall furnish all labor, equipment, tools, parts, materials, supplies, permits, disposal, travel, and incidentals needed to repair, remove and legally dispose of existing material, and furn…
Moorpark Road Storm Drain Pipe (CMP) Lining and Repair at Pembridge Street (MI 2623)
The work consists of furnishing all labor, materials, tools, equipment, and incidentals as required by the plans (Drawing Number 22-11A, Sheets 1-6), Specifications, and Contract Documents. The genera…
On-Call Emergency Facilities Repair Services Program for Stormwater Maintenance Division
Los Angeles County Public Works is requesting proposals from qualified firms to provide on-call emergency facilities repair services for a wide range of Public Works infrastructure, including but not …
Main Jail – Hall of Justice – Refurbish Existing Pipe Chase Leak Detection System
The Project includes, without limitation, furnishing all necessary labor, materials, equipment and other incidental and appurtenant Work necessary to satisfactorily complete the Project, as more speci…
On-Call Plumbing Services
The City of Pomona is seeking informal quotes from qualified companies to provide as needed plumbing services in accordance with the Scope of Service or Specifications stated herein. The City seeks to…
RFQ - Consulting Services for Water Well CBK-81 Construction and L-211 TCP & H2S Treatment
The City owns approximately 65 active domestic water wells, which are operated by California Water Service, that supply potable water to the City’s drinking water distribution system. The City is issu…
Advanced Metering Infrastructure (AMI) System and Installation Services
The City of Pasadena (“City”) is seeking proposals from qualified firms to provide a comprehensive Advanced Metering Infrastructure (“AMI”) solution, together with associated installation services, fo…
Water Line Replacement on S Center Street and Crane Avenue
Sealed proposals will be received by the City Engineer of the City of Turlock, Engineering Division for Water Line Replacement on S Center Street and Crane Avenue . The work consists in general of ins…
SITE MODIFICATIONS AT THE PALMYRITA WATER TREATMENT PLANT FOR PFAS REMOVAL
The work to be done, in general, shall include furnishing all labor, materials, tools, equipment, and incidentals, unless otherwise specified, to construct the treatment plant complete in place in acc…
Transmission Main Renewal Phase 2
This maintenance and repair project includes pipeline rehabilitation and renewal tasks along existing 24” and 30” Water Transmission Mains as described in the table below and as stipulated on the Cont…
Franklin County - Sewer Collection System and WWTP Improvements (C-06-8304-210), Merced, CA
WWTP Improvements (SRF Project No. C-06-8304-210), Merced, CA: CIPP sewer lining, sewer replacement, aeration basin/HDPE liner, clarifiers, blowers, pumps, electrical/SCADA, ponds, sitework, piping.
IFB 10222572 - Portable Toilet Rentals and Septic Holding Tank Pumping Services
The Contractor will provide multiple portable chemical toilet units and service to various locations within Delta Field Division¿s North Bay jurisdiction. The Contractor will provide service to multip…
Plumbing Supplies
The City of Fontana is officially soliciting competitive bids to establish an annual contract for the purchasing of Plumbing Supplies. To ensure operational efficiency and minimize transit times for m…