Mason Mechanical Services, C-20 HVAC Contractor in Novato, CA
Mason Mechanical Services operating as a sole owner holds California contractor license #692130, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 1994, the license has been on the CSLB roster for 32 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from American Casualty Company of Reading PA. The business is based in Novato, in Marin County, California.
- License Number
- 692130
- Issued
- Jul 18, 1994
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- SC634695
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- American Casualty Company of Reading PA
- Policy Number
- WC835744782
- Effective
- Jan 1, 2026
- Expires
- Jan 1, 2027
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Mason Mechanical Services licensed in California?
Mason Mechanical Services previously held California Contractors State License Board license number 692130, but the license expired on July 31, 2026 and is not currently valid. It was first issued on July 18, 1994.
What does Mason Mechanical Services specialize in?
Mason Mechanical Services is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is Mason Mechanical Services headquartered?
Mason Mechanical Services is headquartered at 2 Commercial Blvd Suite 204, Novato, CA 94949, in Marin County, California.
Does Mason Mechanical Services have an active surety bond on file with CSLB?
Yes. Mason Mechanical Services has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Mason Mechanical Services carry workers' compensation coverage?
Yes. Mason Mechanical Services carries active workers' compensation coverage through American Casualty Company of Reading PA.
How do I verify Mason Mechanical Services's contractor license?
You can verify Mason Mechanical Services's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=692130.
- License issuedJul 18, 1994
- Bond activeJan 1, 2023
- WC coverage startsJan 1, 2026
- License expiredJul 31, 2026
- WC expiresJan 1, 2027
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