Massone Mechanical Inc.

Massone Mechanical Inc. is an Alamo, California HVAC company holding CSLB license #615532, verified against state records, licensed since 1991.

License verification

License-Verified

CLEARCSLB #615532(C20|C38)
Original license date
1991-03-19
Expires
2027-03-31
Insurance through
2027-01-11 (OAK RIVER INSURANCE COMPANY)
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: (925) 945-8501
Address: P O BOX 40, Alamo, CA 94507

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