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Licensed Plumbers in Napa, California

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

  • 48licensed plumbers
  • 45active (Clear)
  • 6.3%with a suspension
  • 47.9%workers' comp exempt
  • 13.2 yrsmedian time licensed
  • 47.9%corp / LLC / partnership (52.1% sole owner)
  • 6new in the last 12 months
  • —change tracking began November 1, 2026

Napa is home to 48 plumbers in CSLB's license file, the most in Napa County. 93.8% are Clear.

47.9% report a workers' comp exemption, 3.3 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, 6.3%, is 1.8 points higher than the Napa County rate for the same license (4.5%).

Experience varies: 58.3% have been licensed 10+ years and 6 are new this year (median 13.2 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 Napa

  1. Look the company up by name or license number (search Napa). 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. Match the license holder's name to the name on the written contract and the person you meet. Ask for proof of workers' comp if anyone besides the owner will work on site. Hiring checklist.

All 48 plumbers in Napa

Napa 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 Napa
Business nameLicense #StatusYearsWorkers' compBond
Bell Products INC 171534 Clear 69 Insured On file
Ed's Plumbing & Repairs / Construction 266938 Clear 55 Exempt On file
Steve Silva Plumbing INC 483676 Clear 40 Insured On file
Knittel Construction INC 501977 Clear 39 Insured On file
Mr Rooter Plumbing 511333 Clear 39 Insured On file
Allen Brian 546900 Clear 38 Exempt On file
Cross Valley Construction 584644 Clear 36 Exempt On file
Plumbing Innovations INC 624540 Clear 35 Insured On file
Mc Daniel Mechanical Construction INC 721808 Clear 30 Insured On file
Oakville Pump Service INC 744958 Clear 28 Insured On file
Tarner Tim Electric 749521 Clear 28 Exempt On file
Savin David Plumbing INC 809389 Clear 24 Exempt On file
Dp Pipe Works Plumbing 825205 Clear 23 Exempt On file
Bekker Jeff 829579 Clear 22 Exempt On file
Leontini Mike A 835034 Clear 22 Insured On file
Mays Ken Plumbing INC 839864 Clear 22 Insured On file
Jacks Plumbing 872705 Clear 20 Insured On file
Pena Jose Plumbing INC 885279 Clear 20 Insured On file
Silverado Plumbing 886742 Clear 20 Exempt On file
Eco Plumbing 950376 Clear 16 Insured On file
Gonzalez Plumbing 950765 Clear 16 Insured On file
R C Plumbing LLC 959384 Clear 15 Exempt On file
J B Plumbing Services 986049 Clear 13 Insured On file
Laponza Plumbing INC 986530 Clear 13 Insured On file
Nichols Don 991488 Clear 12 Insured On file
Anthony's Plumbing of Napa 1014655 Clear 10 Insured On file
O G Plumbing 1034291 Clear 8 Insured On file
A & S Plumbing INC 1043335 Clear 8 Insured On file
Rossi Plumbing 1043683 Clear 8 Exempt On file
Rob Land Plumbing INC 1047290 Clear 7 Exempt On file
Skn Construction INC 1065772 Clear 6 Insured On file
Hermes Plumbing INC 1069597 Clear 6 Insured On file
Napa Valley Precision Plumbing INC 1068754 Clear 6 Insured On file
North Bay Water Heater Solutions 1076541 Clear 5 Exempt On file
Mendoza John Plumbing 1082939 Clear 5 Insured On file
Oak Knoll Group the 1096006 Clear 4 Exempt On file
Robben Rick and Crocker Mark Plumbing LLC 1106345 Clear 3 Exempt On file
Epi Plumbing 1130351 Clear 1 Exempt On file
Mike's Plumbing 1145206 Clear 1 Exempt On file
Av Plumbing 1147903 Clear <1 Insured On file
West Coast Water 1147736 Clear <1 Exempt On file
Aaa Organized Plumbing Napa 1150638 Clear <1 Insured On file
Abc Sewer Solutions 1157238 Clear <1 Exempt On file
Eagle Valley Plumbing INC 1156039 Clear <1 Exempt On file
Morrow Plumbing and Drain Service 1159380 Clear <1 Exempt On file
Borg Plumbing 896045 Susp: contractor's bond 19 Exempt On file
Trusted Plumbing 1020737 Susp: contractor's bond 10 Exempt On file
Romero Michael Plumbing 1089462 Susp: contractor's bond 4 Exempt 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 Napa?

CSLB's current public file lists 48 plumbers with a Napa mailing address. 45 have a Clear status, and 89.6% 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 Napa plumbers, 47.9% are exempt (no employees), 52.1% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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