ADU CITIES Contractor Directory

Cosine Construction LLC

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

☎ Call (949) 870-7371Verify this license at CSLB
CSLB license#1105716
ClassificationsB — General Building
Office of record16255 Oregon Ave
Bellflower, CA 90706
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(949) 870-7371
Contractor bond$25,000 — Business Alliance Insurance Company
Workers' comp (CSLB record)Workers' Compensation Insurance — State Compensation Insurance Fund
Business typeLimited Liability
License issuedJune 9, 2023
License expiresJune 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.