Updated: Jul 06, 2026
Location
Address
4550 W 135TH STREET, Hawthorne, CA, 90250
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William S Finish Carp Carpenter
William S Finish Carp, 4550 W 135th St, Hawthorne, CA (Owned by: Guillermo Umana) holds a Cabinet, Millwork And Finish Carpentry 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 William S Finish Carp, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
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William S Finish Carp Contact Information
Phone Number: (310) 990-0524
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Address: 4550 W 135TH STREET, Hawthorne, CA 90250
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William S Finish Carp License info
Verified License
| License # | 940523 |
| Status | Active |
| State | California |
| Type | Cabinet, Millwork And Finish Carpentry |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for William S Finish Carp 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 | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Wesco Insurance Company |
William S Finish Carp Employees
GU
Guillermo Umana
Sole Owner
GU
Guillermo Umana
Owner