Massone Mechanical Inc
Alamo · Contra Costa County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Massone Mechanical Inc in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.
- License standing
- 30 / 30
- Years licensed
- 20 / 20
- Contractor bond
- 20 / 20
- Workers' comp
- 20 / 20
- Business structure
- 10 / 10
The verified record
- CSLB license
- #615532 verify on CSLB ↗
- Classifications
- C-20, C-38
- Years licensed
- 35.3 years since 03/19/1991
- Contractor bond
- $25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ comp
- Current OAK RIVER INSURANCE COMPANY
- Business type
- Corporation
- Qualifying principal
- Michael Edward Hollingshead
- Address of record
- P O Box 40, Alamo, CA 94507
Frequently Asked Questions
Is Massone Mechanical Inc a licensed HVAC contractor in California?
Yes. Massone Mechanical Inc holds California CSLB contractor license #615532 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.
What work is Massone Mechanical Inc licensed to perform?
License #615532 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C38.
Is Massone Mechanical Inc bonded?
Yes. Massone Mechanical Inc carries contractor's bond #SC1034988 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.
Does Massone Mechanical Inc carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with OAK RIVER INSURANCE COMPANY, with a policy expiration of 01/11/2027.
How long has Massone Mechanical Inc held its contractor license?
License #615532 was originally issued on 03/19/1991, approximately 35 years ago (as of July 2026).
Where is Massone Mechanical Inc located?
Massone Mechanical Inc is based in Alamo, Contra Costa County, CA 94507.