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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DIABLO BOILER & STEAM INC
- License Number
- 530963
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 729 FULTON SHIPYARD RD #B1 ANTIOCH, CA, 94509 Contra Costa County
- Phone
- (925) 776 5089
License Dates
Issued
05/25/1988
Expires
09/30/2026
Expires in 6 months — verify renewal before long contracts
Reissued
09/24/2018
CSLB Last Updated
07/28/2025
License Classifications
Personnel & Officers
CLAY TIMOTHY JAY
Responsible Managing Officer/Chief Executive Officer/President
Contractor Bond
Amount: $25,000
Company: HUDSON INSURANCE COMPANY
Bond #30136328
Effective: 01/04/2024
Workers' Compensation
Carrier: STATE COMPENSATION INSURANCE FUND
Policy #9065192
Effective: 08/01/2018
Expires: 08/01/2026
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.