Best Licensed Plumbers in Cupertino, CA
4 plumbing companies registered in Cupertino 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 Cupertino. 4 passed license verification. All 4 are listed below. Our methodology
We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.
- ✓ CSLB License #769797 - look up this number at CSLBInsured - REPUBLIC INDEMNITY COMPANY OF CALIFORNIABonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1999
- Phone
- (408) 353-4145
- ✓ CSLB License #319819 - look up this number at CSLBBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1976
- Phone
- (650) 322-3001
- ✓ CSLB License #818151 - look up this number at CSLBBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2003
- Phone
- (510) 918-3330
- ✓ CSLB License #1033411 - look up this number at CSLBBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2017
- Phone
- (888) 721-8182
Compare the top 4 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Pacific Northstar Mechanical Inc. | #769797 | On file | 1999 |
| J & R Plumbing Inc. | #319819 | Exempt or none on file | 1976 |
| A - Tech Plumbing & Fire Protection | #818151 | Exempt or none on file | 2003 |
| Just Faucets | #1033411 | Exempt or none on file | 2017 |