License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
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BUILDING SYNERGY
DBA: HARMONY PROPERTY MAINTENANCE INC
- License Number
- 1048417
- State
- California
- Status
- active Pending Case/CIT
- Business Type
- Corporation
- Address
- 484 LAKE PARK AVE 280 OAKLAND, CA, 94610 Alameda County
- Phone
- (818) 299 4020
License Dates
Issued
12/31/2018
Expires
12/31/2026
Expires in 9 months
CSLB Last Updated
02/23/2026
License Classifications
Personnel & Officers
HALLDORSON DIANE
Responsible Managing Employee
Qualifier bond: HUDSON INSURANCE COMPANY
CABRERA-CABRERA JAVIER
Responsible Managing Officer
FRIDAY THYNANCY LUU| FRIDAY NANCY
Responsible Managing Officer
COSTNER SEAN KEANE
Chief Executive Officer/President
Contractor Bond
Amount: $25,000
Company: NORTH RIVER INSURANCE COMPANY (THE)
Bond #04CF645833
Effective: 08/16/2025
Workers' Compensation
Carrier: INDEMNITY INSURANCE COMPANY OF NORTH AMERICA
Policy #C74318290
Effective: 01/01/2026
Expires: 01/01/2027
CSLB designation: Workers' Compensation Insurance
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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