Best Licensed Plumbers in Hawthorne, CA
32 plumbing companies registered in Hawthorne hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
How we chose: We identified 32 companies registered in Hawthorne. 32 passed license verification. The 8 below are the top-ranked of those. Our methodology
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- ✓ CSLB License #423142 - look up this number at CSLBInsured - OAK RIVER INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1982
- Phone
- (310) 297-9722
- ✓ CSLB License #433868 - look up this number at CSLBInsured - TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICABonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1983
- Phone
- (310) 419-8902
- ✓ CSLB License #619374 - look up this number at CSLBInsured - HARTFORD CASUALTY INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1991
- Phone
- (310) 644-6939
- ✓ CSLB License #713978 - look up this number at CSLBInsured - AMTRUST INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1995
- Phone
- (310) 297-4969
- ✓ CSLB License #741907 - look up this number at CSLBInsured - CYPRESS INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1997
- Phone
- (310) 297-2737
- ✓ CSLB License #751088 - look up this number at CSLBInsured - HARTFORD CASUALTY INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1998
- Phone
- (310) 350-2459
- ✓ CSLB License #762720 - look up this number at CSLBInsured - STATE COMPENSATION INSURANCE FUNDBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1999
- Phone
- (310) 676-7574
- ✓ CSLB License #854109 - look up this number at CSLBInsured - TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICABonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2005
- Phone
- (310) 568-8648
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| National Construction | #423142 | On file | 1982 |
| American Ac Heat Plumbing | #433868 | On file | 1983 |
| Johnson's Plumbing | #619374 | On file | 1991 |
| Seems Plumbing Co Inc. | #713978 | On file | 1995 |
| Cal Building & Maintenance Industries Inc. | #741907 | On file | 1997 |
| A R C Plumbing | #751088 | On file | 1998 |