ADU CITIES Contractor Directory

Alpha Construction Services Inc

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

☎ Call (626) 407-7701Verify this license at CSLB
CSLB license#1015331
ClassificationsB — General Building
Office of record324 S Diamond Bar Blvd #151
Diamond Bar, CA 91765
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 407-7701
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Exempt
Business typeCorporation
License issuedJune 20, 2016
License expiresJune 30, 2028

Is this your business? Claim this listing to enhance it with your website, photos, and project details.

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.