ADU CITIES Contractor Directory

Mainline Plumbing

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

CSLB license#901735
ClassificationsC-36 — Plumbing
Office of record2319 246TH Place
Lomita, CA 90717
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(310) 433-1259
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Transportation Insurance Company
Business typeSole Owner
License issuedAugust 8, 2007
License expiresAugust 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.