NATIONAL PLUMBING
License
- Status
- CLEAR
- First issued
- May 18, 1991
- Expires
- May 31, 2027
- Entity
- Sole Owner
- Address of record
- 1472 24TH AVENUE, San Francisco, CA 94122
- Phone of record
- (415) 310 4928
Contractor bond
- Surety
- WESTERN SURETY COMPANY
- Bond number
- 67341793
- Amount
- $25,000
- Effective
- May 31, 2025
Workers’ compensation
- Carrier
- PREFERRED EMPLOYERS INSURANCE COMPANY
- Policy number
- PEG499414104
- Effective
- September 30, 2024
- Expires
- September 30, 2026
Are they licensed for your job?
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Licensed to perform
A contractor may only contract for work within their classifications. See all 422 licensed plumbing contractors in San Francisco.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| CHEN YONG JIAN | Sole Owner | May 18, 1991 | Current |
| CHEN YONG JIAN | Sole Owner | October 12, 1999 | January 1, 2004 |
Verified status badge
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<img src="https://bookofbuilders.com/badge/619642.svg" alt="NATIONAL PLUMBING — California contractor license #619642 status, verified against CSLB records" width="268" height="76">
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.