ADU CITIES Contractor Directory

Yuen Billy Hauyin

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

☎ Call (213) 793-7000Verify this license at CSLB
CSLB license#978926
ClassificationsB — General Building
Office of record20890 E Covina Hills Rd
Covina, CA 91724
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(213) 793-7000
Contractor bond$25,000 — Merchants Bonding Company (mutual)
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedNovember 27, 2012
License expiresNovember 30, 2026

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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.