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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THOMSEN AND SON INC
- License Number
- 525938
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- P O BOX 3236 RAMONA, CA, 92065 San Diego County
- Phone
- (760) 519 1633
License Dates
Issued
03/02/1988
Expires
04/30/2026
Expires in 18 days
Inactivated
01/31/2012
Reactivated
04/12/2018
CSLB Last Updated
02/25/2026
License Classifications
Personnel & Officers
THOMSEN ARTHUR ROBERT
Responsible Managing Officer/Chief Executive Officer/President
THOMSEN ARTHUR JOHN
Deceased
THOMSEN LINDA RUTH
Officer
Contractor Bond
Amount: $25,000
Company: WESTERN SURETY COMPANY
Bond #67341730
Effective: 05/27/2025
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.
Building Permits
Source: LA City Open Data (LADBS)
Commercial Alteration-Addn — 3311 - COM - Misc. (Antennas, Canopy, Racks)
434 AQUA LN, RAMONA, CA 92065
Cross street: 5TH ST Description of Work: HRA - 7037 SQ/FT RE-ROOFING TO REPLACE W/CLASS "A'" COMP/SHINGLE, HRA - SIDING REPLACEMENT TO STUCCO. THIS PERMIT REPLACES EXPIRED PERMIT 1030-20081146 FOR
2010-06-03
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