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Licensed Plumbers in Fremont, California

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

  • 35licensed plumbers
  • 33active (Clear)
  • 5.7%with a suspension
  • 54.3%workers' comp exempt
  • 10.5 yrsmedian time licensed
  • 51.4%corp / LLC / partnership (48.6% sole owner)
  • 2new in the last 12 months
  • —change tracking began November 1, 2026

There are 35 plumbers based in Fremont in CSLB's current file. 33 (94.3%) have a Clear status as of November 1, 2026.

The share with a suspension, 5.7%, is 2.3 points higher than the Alameda County rate for the same license (3.4%). 54.3% report a workers' comp exemption, 3.1 points higher 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 10.5 years (less 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 Fremont

  1. Open the plumber's profile from the table below (or search Fremont listings by name). Check that C-36 appears among its classifications and that the primary status reads Clear. What C-36 covers.
  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. 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 35 plumbers in Fremont

Fremont 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 Fremont
Business nameLicense #StatusYearsWorkers' compBond
Mills Mechanical 654655 Clear 34 Insured On file
Allstate Plumbing CO 694771 Clear 32 Insured On file
Pacific Plumbing & Underground Construction 745976 Clear 28 Insured On file
Wellman Plumbing INC 762717 Clear 27 Exempt On file
Wu K C Construction 810425 Clear 24 Insured On file
Shao Allen B 845496 Clear 22 Exempt On file
Top Quality Plumbing and Water Heaters 851117 Clear 21 Exempt On file
Patterson Plumbing and Drain INC 869970 Clear 20 Exempt On file
Joes Construction & Plumbing 909698 Clear 18 Insured On file
Precision Plumbing 917303 Clear 18 Insured On file
Hotter Water Heaters INC 940964 Clear 16 Exempt On file
Active Plumbing & Rooter 959606 Clear 15 Exempt On file
Amor Plumbing 972156 Clear 14 Insured On file
Erds Electric 976712 Clear 14 Exempt On file
Just Water Heaters and Plumbing 997251 Clear 12 Exempt On file
Andy Nolans Professional Plumbing LLC 1009627 Clear 10 Exempt On file
Wright Brothers Builders INC 1014114 Clear 10 Insured On file
Ng Yin 1045403 Clear 8 Exempt On file
Mayfair Carpentry 1046282 Clear 8 Insured On file
Qualet Plumbing and Rooter 1055167 Clear 7 Exempt On file
T G Plumbing 1064468 Clear 6 Exempt On file
Durrani Construction 1070697 Clear 6 Exempt On file
Gator Rooter and Plumbing INC 1073039 Clear 5 Insured On file
Service Rescue INC 1082095 Clear 5 Insured On file
Noe's Plumbing & Sewer Services INC 1086100 Clear 4 Insured On file
Emergency Rooter & Plumbing 1087987 Clear 4 Exempt On file
Red Tulip Plumbing 1092186 Clear 4 Exempt On file
Heji Builders INC 1106558 Clear 3 Exempt On file
Durrani Plumbing 1110028 Clear 3 Exempt On file
Jae Pro Plumbing and Rooter 1113155 Clear 2 Exempt On file
Craft Engineering 1119396 Clear 2 Insured On file
Anderson Sewer and Rooter 1132129 Clear 1 Exempt On file
Best Water Heaters LLC 1162079 Clear <1 Insured On file
Lalo's Plumbing & Drain Cleaning INC 1002819 Susp: workers' compensation 11 None On file
Voltyx Services Corp 1149509 Susp: workers' compensation <1 None 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 Fremont?

CSLB's current public file lists 35 plumbers with a Fremont mailing address. 33 have a Clear status, and 80% 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?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Fremont, 40% of plumbers list a policy, 54.3% claim an exemption and 5.7% 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