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Licensed Plumbers in Danville, California

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

  • 20licensed plumbers
  • 20active (Clear)
  • 0%with a suspension
  • 35%workers' comp exempt
  • 19.8 yrsmedian time licensed
  • 40%corp / LLC / partnership (60% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

Danville is home to 20 plumbers in CSLB's license file, ranking #10 of 10 Contra Costa County cities for this trade. 100% are Clear.

The share with a suspension, 0%, is 3.1 points lower than the Contra Costa County rate for the same license (3.1%). 35% report a workers' comp exemption, 16.2 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 19.8 years (more than the statewide median of 13.4), and 0 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 Danville

  1. Open the plumber's profile from the table below (or search Danville 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.

All 20 plumbers in Danville

Danville 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 Danville
Business nameLicense #StatusYearsWorkers' compBond
Jensen H C Plumbing INC 265318 Clear 56 Insured On file
Johnson Mechanical LLC 357683 Clear 48 Insured On file
Gil's Plumbing 411709 Clear 45 Exempt On file
Olsson Plumbing Company 443706 Clear 43 Insured On file
Home Plumbing 460572 Clear 42 Exempt On file
Amores Plumbing Company 562240 Clear 37 Insured On file
Joes Professional Plumbing 763879 Clear 27 Exempt On file
Mac Plumbing 785215 Clear 26 Exempt On file
S & H Construction INC 786358 Clear 26 Insured On file
Pacific View Properties 881550 Clear 20 Exempt On file
K M C Plumbing CO 901402 Clear 19 Insured On file
Shape Construction 927875 Clear 17 Insured On file
Matheneys Plumbing & Heating 933520 Clear 17 Insured On file
Cxc Construction 962064 Clear 15 Exempt On file
Chase Rooter & Plumbing INC 965957 Clear 15 Insured On file
Polis Plumbing INC 1057590 Clear 7 Insured On file
Snb Plumbing 1096196 Clear 4 Exempt On file
Sagarchi Enterprises INC 1099398 Clear 3 Insured On file
Hopper Plumbing 1115929 Clear 2 Insured On file
Boscolai Construction 1120060 Clear 2 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 Danville?

CSLB's current public file lists 20 plumbers with a Danville mailing address. 20 have a Clear status, and 90% 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. 20 businesses in Danville 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 Danville, 65% of plumbers list a policy, 35% claim an exemption and 0% 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