Updated: Apr 25, 2026
Location
Address
4246 INVERNESS DR, Pittsburg, CA, 94565
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Den of All Trades Construction
Den of All Trades LLC, 4246 Inverness Dr, Pittsburg, CA (Employees: Dennis Steven Costanza and Jane Anne Costanza) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Den of All Trades LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Den of All Trades LLC Services
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Den of All Trades LLC Contact Information
Phone Number: (925) 260-6328
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Address: 4246 INVERNESS DR, Pittsburg, CA 94565
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Verified License
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Den of All Trades LLC License info
Verified License
| License # | 1145330 |
| Status | Active |
| State | California |
| Type | General Building |
| Date Issued | 10-22-2025 |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Den of All Trades LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Next American Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $25,000 |
Den of All Trades LLC Employees
DC
Dennis Steven Costanza
Rmg
JC
Jane Anne Costanza
Manager