Best Licensed Plumbers in San Marino, CA
4 plumbing companies registered in San Marino hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by workers' compensation cover and years licensed.
How we chose: We identified 4 companies registered in San Marino. 4 passed license verification. All 4 are listed below. Our methodology
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- ✓ CSLB License #296761 - look up this number at CSLBInsured - TECHNOLOGY INSURANCE COMPANY INCBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1974
- Phone
- (626) 289-0228
- ✓ CSLB License #860445 - look up this number at CSLBInsured - ZURICH AMERICAN INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2005
- Phone
- (626) 796-4307
- ✓ CSLB License #1156447 - look up this number at CSLBInsured - SECURITY NATIONAL INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2026
- Phone
- (626) 233-0764
- ✓ CSLB License #639936 - look up this number at CSLBBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1992
- Phone
- (626) 289-5575
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| E L Maloney Co | #296761 | On file | 1974 |
| Merry Plumbing Co Inc. | #860445 | On file | 2005 |
| Arroyo Flow Plumbing Inc. | #1156447 | On file | 2026 |
| Aquatech Engineering Inc. DBA Aquatech Backflow Services | #639936 | Exempt or none on file | 1992 |