License is active
Source: Contractors State License Board (CSLB)
Pending Actions
- Pending suspension: 05/04/2026
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
Hiring this contractor?
Get alerts if their license status changes.
You're monitoring this license!
We'll email you if the license status, bond, or complaint history changes.
Something went wrong
Is this your business?
Claim your profile to manage your listing.
Claim request submitted!
We'll be in touch at the email you provided to verify your identity.
Something went wrong
THERMOLINE MECHANICAL SYSTEMS INC
- License Number
- 1126914
- State
- California
- Status
- active Pending IFS
- Business Type
- Corporation
- Address
- 481 WESTBY ST CHULA VISTA, CA, 91911 San Diego County
- Phone
- (858) 744 8523
License Dates
Issued
09/25/2024
Expires
09/30/2026
Expires in 6 months — verify renewal before long contracts
CSLB Last Updated
02/20/2026
License Classifications
Personnel & Officers
VALENZUELA QUINTERO JESUS RAUL
Responsible Managing Officer/Chief Executive Officer/President
NAVA RAUL FEDERICO JR
Chief Executive Officer/President
ISLAS PALAYO ELIUD J| ISLAS PALACIOS ELIUD J
Officer
NAVA RAUL VEGA
Officer
Contractor Bond
Amount: $25,000
Company: WESTERN SURETY COMPANY
Bond #67447647
Effective: 08/30/2025
Workers' Compensation
Carrier: AMERICAN CASUALTY COMPANY OF READING PA
Policy #WC738992390
Effective: 09/13/2025
Expires: 09/13/2026
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.
Verify Another Contractor
Homeowner Resources
Other Licensed C20 in CHULA VISTA
ALL BRANDS APPLIANCE SERVICE
License #740901 · CA
DYNAMIC CONTRACTING SERVICES INC
License #744098 · CA
KING STEVEN PLUMBING SERVICE
STEVEN KING PLUMBING SERVICE
License #829491 · CA
BANAGA CONSTRUCTION INC
License #979712 · CA
AMERI - MEX PLUMBING INC
License #691102 · CA