ADU CITIES Contractor Directory

A1 Sewer Solutions

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

CSLB license#1074336
ClassificationsA — General Engineering · C-36 — Plumbing · C-42 — Sanitation System
Office of recordP O Box 227246
Los Angeles, CA 90022
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(323) 202-5353
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Workers' Compensation Insurance — State Compensation Insurance Fund
Business typeSole Owner
License issuedMarch 29, 2021
License expiresMarch 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.