ADU CITIES Contractor Directory

Bierman Backflow Service

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

CSLB license#838157
ClassificationsC-36 — Plumbing
Office of record1048 Irvine Avenue #413
Newport Beach, CA 92660
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(949) 548-2722
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedMay 14, 2004
License expiresMay 31, 2028

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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.