Plumbing Contractors in Diamond Bar, CA
25 Plumbing contractors in Diamond Bar, California appear in the CSLB public record — 25 with an active license. Check each one's status, bond, workers' compensation, and classifications before you hire.
Galvan Plumbing
C-36 · Diamond Bar, CA
THLC Corporation
C-36 · Diamond Bar, CA
All Day Drains
C-36 · Diamond Bar, CA
Advanced Tankless and Plumbing
C-36 · Diamond Bar, CA
Cany Fire Protection Inc
C-36 · Diamond Bar, CA
Elite Pipe P
C-36 · Diamond Bar, CA
A E D Contractors
C-36 · Diamond Bar, CA
Jay's Plumbing
C-36 · Diamond Bar, CA
Cal Steam Company
C-36 · Diamond Bar, CA
Monair Contractors
C-36 · Diamond Bar, CA
G C Plumbing
C-36 · Diamond Bar, CA
C - Thirty - Six Inc
C-36 · Diamond Bar, CA
JH Builder and Remodeling Inc
C-36 · Diamond Bar, CA
Zip Renovation & Air
C-36 · Diamond Bar, CA
Liao Hsueh Yu
C-36 · Diamond Bar, CA
Ace Plumbing Co
C-36 · Diamond Bar, CA
Service Wizards
C-36 · Diamond Bar, CA
Daley Kenneth Heating & Air Services
C-36 · Diamond Bar, CA
Rooter Shooter
C-36 · Diamond Bar, CA
Chien Ming Chu Chen
C-36 · Diamond Bar, CA
J H Plumbing
C-36 · Diamond Bar, CA
Mirae Construction Co
C-36 · Diamond Bar, CA
Jones Plumbing
C-36 · Diamond Bar, CA
Expedite Plumbing
C-36 · Diamond Bar, CA
More Plumbing cities in California
Frequently asked questions
How many Plumbing contractors are licensed in Diamond Bar, California?
This directory lists 25 Plumbing contractors in Diamond Bar, California, of which 25 currently hold an active CSLB license.
How do I check if a Plumbing contractor is licensed in Diamond Bar, 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.