ADU CITIES Contractor Directory

Ligtenberg Mark

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

CSLB license#464429
ClassificationsC-10 — Electrical
Office of record851 Laroda Ct
Ontario, CA 91762
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 224-8705
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedOctober 17, 1984
License expiresMay 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.