Updated: May 28, 2026
Location
Address
1151 E ALVARADO ST, Ontario, CA, 91764
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Mark Alan Gilbertson Stone and Tile Contractor
Mark Alan Gilbertson, 1151 E Alvarado St, Ontario, CA (Employees: Dennis Martin Gilbertson and John Andrew Gilbertson) holds a Tile (Ceramic And Mosaic) license and 2 other licenses according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mark Alan Gilbertson, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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Mark Alan Gilbertson Contact Information
Phone Number: (909) 983-6846
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Address: 1151 E ALVARADO ST, Ontario, CA 91764
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Verified License
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Mark Alan Gilbertson License info
Verified License
| License # | 630410 |
| Status | Active |
| State | California |
| Type | Tile (Ceramic And Mosaic) |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Mark Alan Gilbertson at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 650301 |
| Status | Inactive |
| State | California |
| Type | Tile (Ceramic And Mosaic) |
| Business Type | Sole Ownership |
- 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 Mark Alan Gilbertson at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 459941 |
| Status | Inactive |
| State | California |
| Type | Tile (Ceramic And Mosaic) |
| Business Type | Sole Ownership |
- 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 Mark Alan Gilbertson at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Mark Alan Gilbertson Employees
DG
Dennis Martin Gilbertson
Sole Owner
JG
John Andrew Gilbertson
Sole Owner
MG
Mark Alan Gilbertson
Owner