ADU CITIES Contractor Directory

Bonser William W

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

☎ Call (562) 281-5131Verify this license at CSLB
CSLB license#540881
ClassificationsB — General Building
Office of record16229 Red Coach Lane
Whittier, CA 90604
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(562) 281-5131
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedSeptember 10, 1988
License expiresSeptember 30, 2028

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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.