ADU CITIES Contractor Directory

Mainline Plumbing Services LLC

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

☎ Call (310) 433-1259Verify this license at CSLB
CSLB license#1145319
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 — Business Alliance Insurance Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Continental Casualty Company
Business typeLimited Liability
License issuedOctober 21, 2025
License expiresOctober 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.