Han Sang Duck
● Active — license status verified against CSLB public data as of November 6, 2026
| CSLB license | #1134609 |
|---|---|
| Classifications | B — General Building |
| Office of record | 398 Cardinal Ln Upland, CA 91786 Address as listed in the CSLB record — the office of record, not a service-area claim. |
| Phone (CSLB record) | (714) 757-6637 |
| Contractor bond | $25,000 — Philadelphia Indemnity Insurance Company |
| Workers' comp (CSLB record) | Exempt |
| Business type | Sole Owner |
| License issued | March 19, 2025 |
| License expires | March 31, 2027 |
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Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.