Updated: Jun 11, 2026
Location
Address
3077 FLANNERY RD, San Pablo, CA, 94806
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Castcon Construction
Castcon Inc, 3077 Flannery Rd, San Pablo, CA (Employees: Gregory Mark Simmons, John David Payne, and Josue Castellanos) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Castcon Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Castcon Inc Services
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Castcon Inc Contact Information
Phone Number: (510) 224-0390
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Address: 3077 FLANNERY RD, San Pablo, CA 94806
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Verified License
BuildZoom confirmed this contractor's license
Castcon Inc License info
Verified License
| License # | 1156511 |
| Status | Active |
| State | California |
| Type | General Building |
| Date Issued | 06-09-2026 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Castcon Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 398977 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Castcon Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $5,000 |
Insured
| Workers Comp Provider | Everest Denali Insurance Company |
Castcon Inc Employees
GS
Gregory Mark Simmons
Officer
JP
John David Payne
Rmo / Ceo / Pres
JC
Josue Castellanos
Rmo / Ceo / Pres
JG
Juan Carlos Padilla Gutierrez
Officer