ADU CITIES Contractor Directory

Aljohn Builders

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

CSLB license#616383
ClassificationsB — General Building
Office of record3865 Owens River Lane
Ontario, CA 91761
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 319-7380
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedMarch 24, 1991
License expiresMarch 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.