ADU CITIES Contractor Directory

Stronghold Construction

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

☎ Call (909) 297-4072Verify this license at CSLB
CSLB license#543774
ClassificationsB — General Building
Office of record2488 Prospect Dr
Upland, CA 91784
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 297-4072
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedOctober 7, 1988
License expiresAugust 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.