ADU CITIES Contractor Directory

Mr Backflow

Also listed as: Double Ll Enterprises LLC

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

☎ Call (858) 342-4008Verify this license at CSLB
CSLB license#1117220
ClassificationsC-36 — Plumbing
Office of record3471 Camino Michelle
Carlsbad, CA 92009
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(858) 342-4008
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeLimited Liability
License issuedFebruary 28, 2024
License expiresFebruary 29, 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.