License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
WC exempt
No employees — exempt from requirement
Clean record
No complaints or disciplinary actions
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TOP TIER BUILDING SERVICES INC
- License Number
- 1146790
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 2867 GROVE WAY CASTRO VALLEY, CA, 94546 Alameda County
- Phone
- (510) 415 8993
License Dates
Issued
11/24/2025
Expires
11/30/2027
Expires in 20 months
CSLB Last Updated
11/25/2025
License Classifications
Personnel & Officers
XIA GUOJUN| GUOJUN XIA
Responsible Managing Officer
TAHMASEBI MOHAMMAD REZA
Chief Executive Officer/President
ORAEI ALIREZA
Officer
Contractor Bond
Amount: $25,000
Company: NATIONWIDE MUTUAL INSURANCE COMPANY
Bond #7901207795
Effective: 10/23/2025
Workers' Compensation
Owner/officer with no employees — exempt from WC requirement
CSLB designation: Exempt
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
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California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
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