ADU CITIES Contractor Directory

Gr Plumbing & Heating

Also listed as: Retzepis Gregory

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

☎ Call (626) 357-5288Verify this license at CSLB
CSLB license#492976
ClassificationsC-20 — Warm-Air Heating, Ventilating and Air-Conditioning · C-36 — Plumbing
Office of record1125 Calle Linares
Duarte, CA 91010
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 357-5288
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Security National Insurance Company
Business typeSole Owner
License issuedJune 6, 1986
License expiresJune 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.