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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J F DUNCAN INDUSTRIES INC
- License Number
- 598206
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 4380 AYERS VERNON, CA, 90058 Los Angeles County
- Phone
- (562) 862 4269
License Dates
Issued
07/13/1990
Expires
07/31/2026
Expires in 4 months — verify renewal before long contracts
CSLB Last Updated
09/12/2025
License Classifications
Personnel & Officers
SPINDLER JOSEPH JOHN
Officer
WONG JOHNNY
Chief Executive Officer/President
ALESSI ALEC ELLIOTT
Officer
DURWARD DONALD LORNE
Responsible Managing Officer
Qualifier bond: HARTFORD FIRE INSURANCE COMPANY
Contractor Bond
Amount: $25,000
Company: HARTFORD FIRE INSURANCE COMPANY
Bond #72BSBIH0969
Effective: 01/01/2023
Workers' Compensation
Carrier: SENTINEL INSURANCE COMPANY LTD
Policy #72WEAT2HS4
Effective: 09/01/2023
Expires: 09/01/2026
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.
Verify this record on the official state licensing board
View on Contractors State License Board (CSLB) →Learn how to verify contractor licenses in California
California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.