ADU CITIES Contractor Directory

Cornerstone Renovation Inc

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

☎ Call (909) 480-3260Verify this license at CSLB
CSLB license#1009891
ClassificationsA — General Engineering · B — General Building
Office of record12754 Jessie Court
Rancho Cucamonga, CA 91739
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 480-3260
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Berkshire Hathaway Direct Insurance Company
Business typeCorporation
License issuedDecember 22, 2015
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.