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Licensed Plumbers in Wilmington, California

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

  • 20licensed plumbers
  • 18active (Clear)
  • 10%with a suspension
  • 50%workers' comp exempt
  • 4.1 yrsmedian time licensed
  • 45%corp / LLC / partnership (55% sole owner)
  • 2new in the last 12 months
  • —change tracking began November 1, 2026

There are 20 plumbers based in Wilmington in CSLB's current file. 18 (90%) have a Clear status as of November 1, 2026.

50% report a workers' comp exemption, 1.2 points lower than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees. The share with a suspension, 10%, is 5.4 points higher than the Los Angeles County rate for the same license (4.6%).

Experience varies: 30% have been licensed 10+ years and 2 are new this year (median 4.1 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 Wilmington

  1. Look the company up by name or license number (search Wilmington). On the profile, confirm three things: Clear status, the C-36 license for this kind of work, and a contractor's bond on file.
  2. Before any money changes hands, verify the license on CSLB's own lookup. Our data comes from CSLB's weekly file, so a very recent change may not show here yet.
  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 20 plumbers in Wilmington

Wilmington 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 Wilmington
Business nameLicense #StatusYearsWorkers' compBond
Ruan Plumbing & Rooter Service 815047 Clear 24 Exempt On file
A & J Plumbing and Rooter 889571 Clear 19 Insured On file
Eddie's Rooter Works 965175 Clear 15 Insured On file
True Rooter & Plumbing 981201 Clear 13 Insured On file
Rodriguez Jose Plumbing INC 1066732 Clear 6 Insured On file
Vic's Plumbing 1080364 Clear 5 Exempt On file
Atomic Rooter & Plumbing 1081255 Clear 5 Insured On file
Sanchez Pedro Enriquez 1090172 Clear 4 Exempt On file
Duarte Fernandez Jesus 1102369 Clear 3 Exempt On file
Gasper's Plumbing 1114706 Clear 2 Exempt On file
Jp Plumbing INC 1115697 Clear 2 Insured On file
Rooter Care and Plumbing 1116915 Clear 2 Exempt On file
Portside Plumbing INC 1121571 Clear 2 Exempt On file
M & J3 Builders INC 1127358 Clear 2 Insured On file
Contreras Gustavo 1133028 Clear 1 Exempt On file
Ct Drain Services 1144971 Clear 1 Insured On file
Zion Facility Service and Construction 1151231 Clear <1 Insured On file
Harbor Rooter & Plumbing Services 1155062 Clear <1 Exempt On file
B and A Plumbing 371295 Susp: contractor's bond 47 Exempt On file
Blue Plumbing INC 1020825 Susp: contractor's bond 10 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 Wilmington?

CSLB's current public file lists 20 plumbers with a Wilmington mailing address. 18 have a Clear status, and 80% 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?

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). Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 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 Wilmington plumbers, 50% are exempt (no employees), 50% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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