ADU CITIES Contractor Directory

John William Vonk JR

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

CSLB license#376806
ClassificationsB — General Building
Office of record19664 Shoshonee Rd
Apple Valley, CA 92307
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(760) 964-4082
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedJune 12, 1979
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.