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Licensed Plumbers in Petaluma, California

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

  • 52licensed plumbers
  • 48active (Clear)
  • 7.7%with a suspension
  • 34.6%workers' comp exempt
  • 19.3 yrsmedian time licensed
  • 55.8%corp / LLC / partnership (44.2% sole owner)
  • 2new in the last 12 months
  • —change tracking began November 1, 2026

Petaluma is home to 52 plumbers in CSLB's license file, ranking #2 of 6 Sonoma County cities for this trade. 92.3% are Clear.

The share with a suspension, 7.7%, is 3 points higher than the Sonoma County rate for the same license (4.7%). 34.6% report a workers' comp exemption, 16.6 points lower than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees.

The median plumber here has held a license for 19.3 years (more than the statewide median of 13.4), and 2 licenses were issued in the last 12 months.

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 Petaluma

  1. Open the plumber's profile from the table below (or search Petaluma 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. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed plumber is required by law. See the $1,000 rule.

50 of 52 plumbers in Petaluma

Petaluma 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 Petaluma
Business nameLicense #StatusYearsWorkers' compBond
Ongaro & Sons 215233 Clear 63 Insured On file
Kozy Homes 262090 Clear 56 Insured On file
Masterson Bryan Enterprises 271933 Clear 55 Insured On file
Von Ahn Robert W Plumbing & Electrical Contractor 334286 Clear 49 Insured On file
Paramount Plmg & Htg 390434 Clear 46 Insured On file
Jerry and Don's Yager Pump and Well Service 424778 Clear 44 Insured On file
Hanan Brad 480266 Clear 41 Exempt On file
Rigney Plumbing INC 481056 Clear 41 Insured On file
Dolcini Plumbing INC 502201 Clear 39 Insured On file
Owens John Services INC 501853 Clear 39 Insured On file
Mullins Kerry 503874 Clear 39 Exempt On file
Olaeta Lee Plumbing 514632 Clear 39 Exempt On file
Incom Mechanical INC 517617 Clear 39 Insured On file
Joe's Plumbing Service INC 591021 Clear 36 Insured On file
S J S Plumbing INC 693624 Clear 32 Insured On file
Paul Dolcini Sewer Service and Plumbing Repair INC 771348 Clear 27 Insured On file
Milano Mechanical INC 797754 Clear 25 Insured On file
Wood Steven Plumbing Service 849920 Clear 22 Insured On file
Al - Ro Plumbing 851575 Clear 21 Exempt On file
Robello Plumbing 878332 Clear 20 Insured On file
C N S Mechanical INC 881051 Clear 20 Insured On file
Valcon Construction 887127 Clear 20 Exempt On file
Cramer Scott Plumbing 889152 Clear 19 Exempt On file
Ross Steven Paul 899163 Clear 19 Exempt On file
Icon Plumbing & Design 904120 Clear 19 Insured On file
Genobles Rick Plumbing 926385 Clear 17 Exempt On file
Ludlow Plumbing 940777 Clear 16 Exempt On file
Roman's Plumbing INC 952842 Clear 16 Insured On file
Rust Plumbing INC 976035 Clear 14 Insured On file
Jimenez Plumbing Marin 981719 Clear 13 Insured On file
Desired Plumbing INC 1003568 Clear 11 Insured On file
101 Plumbing Solutions 1030939 Clear 9 Exempt On file
Alpha Trenchless 1044308 Clear 8 Insured On file
Penngrove Plumbing 1047369 Clear 7 Insured On file
Bay Side Plumbing 1065468 Clear 6 Exempt On file
Plumb Em All 1073373 Clear 5 Insured On file
Parra Plumbing INC 1074602 Clear 5 Insured On file
Voytac Plumbing 1079774 Clear 5 Exempt On file
Barnhart Plumbing 1088163 Clear 4 Exempt On file
Roach Brad Plumbing 1087922 Clear 4 Exempt On file
Norcal Superior Systems INC 1099654 Clear 3 Insured On file
Faustino's Plumbing Service 1101200 Clear 3 Insured On file
Ariel Berglund Plumbing 1108301 Clear 3 Exempt On file
Elite Pipe Solutions LLC 1121107 Clear 2 Exempt On file
Stat Heating & Air Corporation 1123282 Clear 2 Insured On file
Green Core Heating & Air INC 1131183 Clear 1 Insured On file
Holland Plumbing INC 1148010 Clear <1 Insured On file
Same Day Plumbing and Water Cleanup 1155489 Clear <1 Exempt On file
Acrat Plumbing & Heating LLC 623720 Susp: employee/worker bond 35 Insured On file
Herrin Steve P 668660 Susp: workers' compensation 33 None On file

See all 52 plumbers in Petaluma

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 Petaluma?

CSLB's current public file lists 52 plumbers with a Petaluma mailing address. 48 have a Clear status, and 82.7% 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 Sonoma County, 92.3% of Petaluma'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?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Petaluma, 63.5% of plumbers list a policy, 34.6% claim an exemption and 1.9% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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Guides