ADU CITIES Contractor Directory

B 3 Backflow Inc

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

CSLB license#847662
ClassificationsC-36 — Plumbing
Office of record325 7TH Ave #509
San Diego, CA 92101
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(760) 403-0225
Contractor bond$25,000 — Business Alliance Insurance Company
Workers' comp (CSLB record)Exempt
Business typeCorporation
License issuedSeptember 30, 2004
License expiresDecember 31, 2026

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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.