Michael Gregory Porteous DBA Mgp Construction

Michael Gregory Porteous DBA Mgp Construction is a Upland, California plumbing company holding CSLB license #510978, verified against state records, licensed since 1987.

License verification

License-Verified

CLEARCSLB #510978(A|B|C10|C36|C46)
Original license date
1987-05-19
Expires
2027-04-30
Insurance through
2027-05-01 (STATE COMPENSATION INSURANCE FUND)
Last verified 2026-08-17 · Verify at the state registry
Verification history
1. 2026-08-17 · checked against the state file · status: CLEAR

Contact

Phone: (909) 982-2364
Address: P O BOX 355, Upland, CA 91785

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