ADU CITIES Contractor Directory

Know How Plumbing

● Active — license status verified against CSLB public data as of November 6, 2026

☎ Call (626) 848-9262Verify this license at CSLB
CSLB license#1052689
ClassificationsC-36 — Plumbing
Office of record905 Sycamore Ct Unit C
Upland, CA 91786
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 848-9262
Contractor bond$25,000 — Jet Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedApril 22, 2019
License expiresApril 30, 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.