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Licensed Plumbers in West Covina, California

Updated November 1, 2026 from CSLB's public license file · C-36 Plumbing Contractor

  • 42licensed plumbers
  • 40active (Clear)
  • 4.8%with a suspension
  • 52.4%workers' comp exempt
  • 16.3 yrsmedian time licensed
  • 42.9%corp / LLC / partnership (57.1% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 42 plumbers with a mailing address in West Covina, and 40 of them (95.2%) show a Clear primary status.

52.4% report a workers' comp exemption, 1.2 points higher than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees. The share with a suspension (4.8%) is close to the Los Angeles County rate for the same license (4.6%).

Experience varies: 69% have been licensed 10+ years and 3 are new this year (median 16.3 years, vs 13.4 statewide).

In California this work generally calls for the C-36 Plumbing Contractor license (or a B license when it is part of a larger multi-trade job). See the C-36 Plumbing Contractor guide for what the license covers.

How to check a plumber's license in West Covina

  1. Open the plumber's profile from the table below (or search West Covina listings by name). Check that C-36 appears among its classifications and that the primary status reads Clear. What C-36 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Ask for the pocket license and a photo ID and match the name to your contract. Work of $1,000 or more needs a license (the $1,000 rule), and a down payment can't exceed $1,000 or 10% (down payment rules).

All 42 plumbers in West Covina

West Covina plumbers sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed plumbers in West Covina
Business nameLicense #StatusYearsWorkers' compBond
Baxter Bob Maintenance & Construction 295995 Clear 52 Exempt On file
Master Rooter Plumbing Service 513577 Clear 39 Insured On file
Ward's Plumbing and Remodeling 622697 Clear 35 Exempt On file
Solidway Construction INC 657819 Clear 34 Insured On file
Tang Ly Duong 720921 Clear 30 Insured On file
Rosales Plumbing & Rooter 802004 Clear 24 Insured On file
Suncom Service 829980 Clear 22 Insured On file
B B S Construction INC 839266 Clear 22 Insured On file
Jjj Plumbing INC 842875 Clear 22 Insured On file
Andrews Plumbing & Drain Cleaning 878792 Clear 20 Insured On file
Mena Carlos 880198 Clear 20 Exempt On file
D H K Plumbing & Piping INC 882130 Clear 20 Insured On file
Pedroza Alfredo 895177 Clear 19 Exempt On file
Dirt Cheap Rooter N Plumbing 908614 Clear 18 Exempt On file
O & Z Plumbing Work INC 911682 Clear 18 Insured On file
Shams Plumbing Contractor 925866 Clear 17 Exempt On file
C M L Plumbing Contractor INC 932805 Clear 17 Insured On file
Lin Sun 931259 Clear 17 Exempt On file
Constructix CO Plumbing Electrical & General - B Svcs 936518 Clear 17 Exempt On file
K O P Construction 945246 Clear 16 Exempt On file
Sunrise Home Improvements 950006 Clear 16 Exempt On file
Pro Water Plumbing 952006 Clear 16 Exempt On file
Thee Best Rooter and Plumbing 957938 Clear 15 Exempt On file
Rf Solar & Green Energy INC 987150 Clear 13 Insured On file
Celco Construction Services Incorporated 988826 Clear 12 Insured On file
Rey Santos Plumbing 992594 Clear 12 Exempt On file
R C P Plumbing INC 998258 Clear 12 Insured On file
Sun Jiuchuan 1023259 Clear 9 Exempt On file
Ortiz Mario Cesar 1047476 Clear 7 Exempt On file
Doctor Rooter INC 1051766 Clear 7 Insured On file
Zhenwei Liang 1052050 Clear 7 Exempt On file
Worth Construction 1084292 Clear 4 Exempt On file
B P Maintenance Plumbing INC 1093046 Clear 4 Insured On file
United Fire & Safety Service Corp 1111031 Clear 3 Exempt On file
Dynamo Plumbing & Drain Cleaning INC 1126934 Clear 2 Insured On file
Gonzalez Plumbing & Rooter 1129859 Clear 1 Exempt On file
Hustle & Flow Plumbing LLC 1131990 Clear 1 Insured On file
Lc Construction 1157539 Clear <1 Exempt On file
Pedroza Plumbing & Rooter LLC 1158633 Clear <1 Exempt On file
Royal Snake Plumbing 1159392 Clear <1 Exempt On file
J V Construction INC 961164 Susp: workers' compensation 15 None On file
Hydro Backflow 1008186 Susp: contractor's bond 11 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed plumbers are in West Covina?

CSLB's current public file lists 42 plumbers with a West Covina mailing address. 40 have a Clear status, and 83.3% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a plumber need in California?

CSLB issues the C-36 Plumbing Contractor classification for this work. In Los Angeles County, 95.2% of West Covina's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

How do I check a plumber's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among West Covina plumbers, 52.4% are exempt (no employees), 45.2% insured and 2.4% without current coverage. Verify a policy with CSLB's insurer search (step by step).

Related

Plumbers in nearby cities

More plumbers lists in Los Angeles County

Other licensed trades in West Covina

Guides