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Licensed Plumbers in San Dimas, California

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

  • 25licensed plumbers
  • 24active (Clear)
  • 4%with a suspension
  • 40%workers' comp exempt
  • 20.4 yrsmedian time licensed
  • 72%corp / LLC / partnership (28% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

There are 25 plumbers based in San Dimas in CSLB's current file. 24 (96%) have a Clear status as of November 1, 2026.

The share with a suspension (4%) is close to the Los Angeles County rate for the same license (4.6%). 40% report a workers' comp exemption, 11.2 points lower than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees.

Experience varies: 56% have been licensed 10+ years and 0 are new this year (median 20.4 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 San Dimas

  1. Look the company up by name or license number (search San Dimas). 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. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  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 25 plumbers in San Dimas

San Dimas 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 Dimas
Business nameLicense #StatusYearsWorkers' compBond
Dorsey Plumbing INC 396571 Clear 45 Exempt On file
Athena Engineering INC 523044 Clear 38 Insured On file
Jb Plumbing 550584 Clear 37 Insured On file
Fidelity Construction Plumbing INC 585042 Clear 36 Exempt On file
D & D's Reasonable Plumbing 628425 Clear 35 Exempt On file
S K Construction 633705 Clear 34 Insured On file
Mpi - Miller Plumbing INC 720581 Clear 30 Insured On file
J B Kitchens Baths & Design INC 730976 Clear 29 Insured On file
Woodcock Robert Plumbing 786501 Clear 26 Exempt On file
Lou's Plumbing INC 854291 Clear 21 Insured On file
Diver Dan's Plumbing & Drain Cleaning CO 863791 Clear 21 Exempt On file
F W Plumbing INC 879683 Clear 20 Insured On file
Canfield's Plumbing 893418 Clear 19 Exempt On file
Plumber Plumbing & Rooter INC the 1025831 Clear 9 Exempt On file
Daley James 1049054 Clear 7 Exempt On file
Swe Sewer Solutions Construction & Engineering 1049213 Clear 7 Insured On file
My Dad's Plumbing 1051720 Clear 7 Insured On file
Advanced Plumbing Heating and Air Conditioning INC 1054566 Clear 7 Insured On file
H & C Plumbing 1068130 Clear 6 Insured On file
Fracasso Matthew 1070706 Clear 6 Insured On file
Mikes Plumbing 1128092 Clear 2 Insured On file
Hot & Cold Plumbing Technical Consultant 1137006 Clear 1 Exempt On file
M Dads Plumbing INC 1141773 Clear 1 Insured On file
Socal Paving Company 1144548 Clear 1 Insured On file
Fire Plumbing 557478 Susp: contractor's bond 37 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 San Dimas?

CSLB's current public file lists 25 plumbers with a San Dimas mailing address. 24 have a Clear status, and 84% 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. 25 businesses in San Dimas 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 Dimas, 60% of plumbers list a policy, 40% 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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