ADU CITIES Contractor Directory

Mgp Construction

Also listed as: Porteous Michael Gregory

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

☎ Call (909) 982-2364Verify this license at CSLB
CSLB license#510978
ClassificationsA — General Engineering · B — General Building · C-10 — Electrical · C-36 — Plumbing · C-46 — Solar
Office of recordP O Box 355
Upland, CA 91785
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 982-2364
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Workers' Compensation Insurance — State Compensation Insurance Fund
Business typeSole Owner
License issuedMay 19, 1987
License expiresApril 30, 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.