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Licensed Plumbers in Hawthorne, California

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

  • 38licensed plumbers
  • 37active (Clear)
  • 2.6%with a suspension
  • 52.6%workers' comp exempt
  • 12.4 yrsmedian time licensed
  • 63.2%corp / LLC / partnership (36.8% sole owner)
  • 2new in the last 12 months
  • —change tracking began November 1, 2026

Hawthorne is home to 38 plumbers in CSLB's license file, ranking #36 of 74 Los Angeles County cities for this trade. 97.4% are Clear.

52.6% report a workers' comp exemption, 1.4 points higher than the statewide figure for plumbers (51.2%), so many of these businesses say they have no employees. The share with a suspension, 2.6%, is 2 points lower than the Los Angeles County rate for the same license (4.6%).

The median plumber here has held a license for 12.4 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 Hawthorne

  1. Find the business in the list below, or search all 38 Hawthorne listings, and open its profile. You want a Clear status and the C-36 classification (a B license can also cover it as part of a multi-trade job).
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 2.6% of Hawthorne listings here already show a suspension.
  3. Match the license holder's name to the name on the written contract and the person you meet. Since 52.6% of Hawthorne plumbers claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

All 38 plumbers in Hawthorne

Hawthorne 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 Hawthorne
Business nameLicense #StatusYearsWorkers' compBond
National Construction 423142 Clear 44 Insured On file
American AC Heat Plumbing 433868 Clear 43 Insured On file
Pro Plumbing 593415 Clear 36 Exempt On file
Johnson's Plumbing 619374 Clear 35 Insured On file
Seems Plumbing CO INC 713978 Clear 31 Insured On file
Cal Building & Maintenance Industries INC 741907 Clear 29 Insured On file
A R C Plumbing 751088 Clear 28 Insured On file
Arctic Heating & Air INC 762720 Clear 27 Insured On file
Gilbert Plumbing INC 784240 Clear 26 Insured On file
Sosa Julian R 796929 Clear 25 Exempt On file
To - Do Plumbing CO 835727 Clear 22 Exempt On file
Seems Mechanical Corp 864917 Clear 21 Insured On file
Tartaglia's Plumbing 951621 Clear 16 Insured On file
Bellorini's Plumbing INC 960414 Clear 15 Exempt On file
S O Plumbing INC 962324 Clear 15 Exempt On file
M J Plumbing & Rooter 968591 Clear 14 Exempt On file
Drain Hero Rooter and Plumbing 988908 Clear 12 Exempt On file
G & A Plumbing INC 991762 Clear 12 Insured On file
G L Plumbing & Heating 995992 Clear 12 Exempt On file
R A Construction INC 998831 Clear 11 Insured On file
Hdz Plumbing 1001235 Clear 11 Insured On file
Flores Armando Tapia 1021591 Clear 9 None On file
Precision Drywall & General Construction INC 1040772 Clear 8 Exempt On file
At Plumbing INC 1058970 Clear 7 Exempt On file
Esparza Juan Carlos 1063974 Clear 6 Exempt On file
H D Z Plumbing & Sewer INC 1063036 Clear 6 Insured On file
Jovel's Plumbing INC 1071017 Clear 6 Exempt On file
Canales Elmer 1104315 Clear 3 Exempt On file
Palafox Plumbing INC 1118382 Clear 2 Exempt On file
T & M Plumbing 1121545 Clear 2 Insured On file
Sandpiper Plumbing INC 1129967 Clear 1 Exempt On file
Ec Plumbing Solutions INC 1131167 Clear 1 Exempt On file
Unquestionable Plumbing INC 1131268 Clear 1 Exempt On file
Walt Works Plumbing INC 1132447 Clear 1 Exempt On file
Tier 7 Plumbing & Rooter 1136552 Clear 1 Insured On file
S-Tier Plumbing LLC 1150145 Clear <1 Exempt On file
Abdelwahed Nassim 1155035 Clear <1 Exempt On file
Emiliano Martinez 871242 Susp: contractor's bond 20 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 Hawthorne?

CSLB's current public file lists 38 plumbers with a Hawthorne mailing address. 37 have a Clear status, and 84.2% 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 Los Angeles County, 97.4% of Hawthorne'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?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Hawthorne plumbers, 52.6% are exempt (no employees), 44.7% insured and 2.6% without current coverage. Verify a policy with CSLB's insurer search (step by step).

Related

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Other licensed trades in Hawthorne

Guides