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Licensed Plumbers in San Francisco, California

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

  • 457licensed plumbers
  • 440active (Clear)
  • 3.7%with a suspension
  • 51.4%workers' comp exempt
  • 16.2 yrsmedian time licensed
  • 56%corp / LLC / partnership (44% sole owner)
  • 23new in the last 12 months
  • —change tracking began November 1, 2026

San Francisco is home to 457 plumbers in CSLB's license file, the most in San Francisco County. 96.3% are Clear.

The share with a suspension (3.7%) is close to the San Francisco County rate for the same license (3.7%). About 51.4% report a workers' comp exemption, roughly the statewide norm for plumbers.

23 of these licenses are less than a year old, while 63.7% have been held for 10 years or more. The median is 16.2 years.

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 San Francisco

  1. Open the plumber's profile from the table below (or search San Francisco listings by name). Check that C-36 appears among its classifications and that the primary status reads Clear. What C-36 covers.
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 3.7% of San Francisco listings here already show a suspension.
  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 457 plumbers in San Francisco

San Francisco 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 San Francisco
Business nameLicense #StatusYearsWorkers' compBond
Anderson Rowe & Buckley INC 91594 Clear 79 Insured On file
Reichel C R Engineering CO INC 169169 Clear 69 Insured On file
Cornely Company 171203 Clear 69 Insured On file
Sand Joseph C CO INC 280333 Clear 53 Exempt On file
Creedon Thomas W 290746 Clear 52 Insured On file
D G Construction CO 297604 Clear 52 Exempt On file
Occidental Express 319153 Clear 50 Exempt On file
Lee Hawk N Design & Construction Company 324708 Clear 50 Exempt On file
Ng Tony Plumbing CO 329705 Clear 49 Exempt On file
Standard Plumbing CO 330341 Clear 49 Insured On file
Linebarger Const & Plumbing 333093 Clear 49 Exempt On file
Coit Construction INC 341277 Clear 49 Exempt On file
O'brien Frank J 343837 Clear 49 Exempt On file
Demakas Plumbing & Heating INC 349523 Clear 48 Insured On file
Chiang Robert 365642 Clear 48 Exempt On file
Prontito Plumbing 366870 Clear 47 Exempt On file
Bm Service Center 372026 Clear 47 Exempt On file
Runng Stephen 376411 Clear 47 Exempt On file
Lange Andrew H 387656 Clear 46 Insured On file
Leffers Matthew P 390912 Clear 46 Exempt On file
Ayoob & Peery Plumbing CO INC 392967 Clear 46 Insured On file
Nolan Paul A Plumbing Contractor 397429 Clear 45 Exempt On file
Commins Construction CO 403734 Clear 45 Exempt On file
Stan Plumbing 410861 Clear 45 Insured On file
J W Electrical & Plumbing CO 418061 Clear 44 Exempt On file
Lev's Plumbing CO 421774 Clear 44 Exempt On file
Young Plumbing 424147 Clear 44 Exempt On file
Bragg Bill Plumbing 440780 Clear 43 Insured On file
Ponce Bruce 466753 Clear 41 Exempt On file
Electra Plumbing and Construction 472950 Clear 41 Insured On file
W C Plumbing & Fire Protection 477468 Clear 41 Insured On file
Central Mechanical CO 482746 Clear 41 Exempt On file
Rosemount Construction 482113 Clear 41 Insured On file
Kit Construction CO 485469 Clear 40 Exempt On file
Aspen Contractors INC 487320 Clear 40 Insured On file
So Peter Company 488896 Clear 40 Exempt On file
Fong's Cons & Plumbing 499286 Clear 40 Insured On file
Ovisco INC 499052 Clear 40 Exempt On file
K-Plumbing & Construction 500487 Clear 40 Exempt On file
Lutz Plumbing INC 503971 Clear 39 Insured On file
Gaehwiler M Construction INC 510649 Clear 39 Insured On file
Trico Construction 510127 Clear 39 Insured On file
Chen's H Plumbing 516866 Clear 39 Exempt On file
C M Construction Company 520064 Clear 39 Insured On file
Chia Wai Kwong 526404 Clear 38 Exempt On file
Bruhns Steven 534802 Clear 38 Exempt On file
Sunny's Plumbing INC 536715 Clear 38 Exempt On file
Lo Michael Construction & Plumbing 542091 Clear 38 Exempt On file
Finnerty Plumbing 545906 Clear 38 Insured On file
Gucho Plumbing 554666 Clear 37 Exempt On file

See all 457 plumbers in San Francisco

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 San Francisco?

CSLB's current public file lists 457 plumbers with a San Francisco mailing address. 440 have a Clear status, and 90.6% 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?

Look for C-36 on the license. 457 businesses in San Francisco hold it. Small jobs under $1,000 with no permit and no employees are exempt; everything else needs a license (details).

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 San Francisco, 47.5% of plumbers list a policy, 51.4% claim an exemption and 1.1% 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