J GERSTENKORN BUILDERS
License
- Status
- CLEAR
- First issued
- March 25, 2020
- Expires
- March 31, 2028
- Entity
- Corporation
- Address of record
- 668 RAILROD AVE UNIT C, South San Francisco, CA 94080
- Phone of record
- (415) 405 6716
Contractor bond
- Surety
- WESTERN SURETY COMPANY
- Bond number
- 6767363
- Amount
- $25,000
- Effective
- February 18, 2026
Workers’ compensation
- Carrier
- HARTFORD CASUALTY INSURANCE COMPANY
- Policy number
- 72WECCC4EXF
- Effective
- May 11, 2026
- Expires
- May 11, 2027
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 173 licensed general building contractors in South San Francisco.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| GERSTENKORN JOHN | Responsible Managing Officer/Chief Executive Officer/President | March 25, 2020 | Current |
Verified status badge
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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.