Massone Mechanical Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 615532
- License term on file
- March 19, 1991 – March 31, 2027
Business
- (925) 945 8501 (CSLB public record)
- P O BOX 40, Alamo, CA 94507Contra Costa County
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What to check next
Frequently asked questions
Is Massone Mechanical Inc licensed in California?
Yes. Massone Mechanical Inc holds an active California state contractor license (CSLB #615532), verified against the CSLB public record on June 17, 2026.
What is Massone Mechanical Inc's CSLB license number?
Massone Mechanical Inc's California contractor license number is 615532. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Massone Mechanical Inc licensed for?
Massone Mechanical Inc is classified under Warm-Air Heating, Ventilating and Air-Conditioning (C-20) and Refrigeration (C-38) by the CSLB.
How do I verify Massone Mechanical Inc's license myself?
Look up license #615532 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #615532 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.