Plumbing Contractors in Ontario, CA
51 Plumbing contractors in Ontario, California appear in the CSLB public record — 48 with an active license. Check each one's status, bond, workers' compensation, and classifications before you hire.
JN Construction Inc
C-36 · Ontario, CA
Orange Independent Plumbing Services
C-36 · Ontario, CA
High Speed Rooter and Plumbing Inc
C-36 · Ontario, CA
Baumann Waterworks
C-36 · Ontario, CA
Ruvico Inc
C-36 · Ontario, CA
In and Out Plumbing
C-36 · Ontario, CA
A 2 Z Plumbing
C-36 · Ontario, CA
Bc7 Construction Inc
C-36 · Ontario, CA
A & B Plumbing Solutions Inc
C-36 · Ontario, CA
Pro Rooter Guys Inc
C-36 · Ontario, CA
C 2 C Plumbing Inc
C-36 · Ontario, CA
Acosta Pipeline Inc
C-36 · Ontario, CA
Simple Restoration Inc
C-36 · Ontario, CA
JNSD Construction Inc
C-36 · Ontario, CA
J M E Plumbing Inc
C-36 · Ontario, CA
All Pro Cooling Heating Plumbing & Electrical
C-36 · Ontario, CA
Elias Plumbing
C-36 · Ontario, CA
Royalty Plumbing Inc
C-36 · Ontario, CA
SM Waterworks Backflow Service
C-36 · Ontario, CA
West Coast Pipeline Specialist
C-36 · Ontario, CA
Pisces Plumbing
C-36 · Ontario, CA
Dylan's Plumbing Group Inc
C-36 · Ontario, CA
Vargos Plumbing & Sewer Inc
C-36 · Ontario, CA
STS Plumbing & Rooter Inc
C-36 · Ontario, CA
More Plumbing cities in California
Frequently asked questions
How many Plumbing contractors are licensed in Ontario, California?
This directory lists 51 Plumbing contractors in Ontario, California, of which 48 currently hold an active CSLB license.
How do I check if a Plumbing contractor is licensed in Ontario, California?
Open the contractor's profile here for their dated CSLB status, or look up their license number directly on the CSLB "Check a License" tool. A license must be active — not expired, suspended, or inactive — to be valid.
Should a Plumbing contractor carry a bond and workers' compensation?
Most active CSLB licensees carry a contractor bond, and any contractor with employees must carry workers' compensation. Each profile shows what the CSLB record reports.