Updated: Apr 11, 2026
Location and Projects
Address
P O BOX 51344, Palo Alto, CA, 94303
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William Arthur Jonson Landscape Contractor
William Arthur Jonson, Palo, Po Box 51344, Palo Alto, CA holds a Landscaping 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 Arthur Jonson, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
William Arthur Jonson Services
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William Arthur Jonson Contact Information
Phone Number: (650) 704-0636
Address: P O BOX 51344, Palo Alto, CA 94303
Building Permits by William Arthur Jonson
This is a sample of this contractor's permits. Click here to access their complete permit history.
New swimming pool < 860 sq ft >
Valuation:
$120,000
Permit #:
BLD2008-00938
Status:
final
Fee:
$2,830
Permit Type:
New
Building Type:
N/A
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William Arthur Jonson License info
Verified License
| License # | 668891 |
| Status | Active |
| State | California |
| Type | Landscaping |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for William Arthur Jonson 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 |
William Arthur Jonson Employees
WJ
William Arthur Jonson
Sole Owner