ADU CITIES Contractor Directory

L A Seismic Construction Co

Also listed as: Optimum Indoor Air And Environmental Inc

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

☎ Call (323) 255-7138Verify this license at CSLB
CSLB license#1060078
ClassificationsB — General Building · C-20 — Warm-Air Heating, Ventilating and Air-Conditioning · D-12
Office of record4100 Scandia Way
Los Angeles, CA 90065
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(323) 255-7138
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Omaha National Casualty Company
Business typeCorporation
License issuedNovember 6, 2019
License expiresNovember 30, 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.