ADU CITIES Contractor Directory

J&n Maintenance Services

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

CSLB license#1147841
ClassificationsB — General Building
Office of record1030 N Mountain Ave Ste 189
Ontario, CA 91762
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 389-8810
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeCorporation
License issuedDecember 17, 2025
License expiresDecember 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.