Updated: Apr 09, 2026
Location and Projects
Address
P O BOX 9174, Mammoth Lakes, CA, 93546
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WL Harder Incorporated Construction
WL Harder Incorporated, Mammoth Lks, Po Box 9174, Mammoth Lakes, CA (Employee: William Louis Harder) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 96 ranks in the top 20% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring WL Harder Incorporated, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
WL Harder Incorporated Services
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WL Harder Incorporated Contact Information
Phone Number: (760) 934-1869
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Address: P O BOX 9174, Mammoth Lakes, CA 93546
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Building Permits by WL Harder Incorporated
This is a sample of this contractor's permits. Click here to access their complete permit history.
Repair fire damage to sfd- all interior repair- replace wood paneling windows electrical smoke damaged faucets replace toilet
Valuation:
N/A
Permit #:
B-139842
Status:
final
Fee:
$361
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1995-10-23
Remodel kitchen
Valuation:
$17,000
Permit #:
95000-00000-02899
Status:
N/A
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel addition outlets and lights
Valuation:
$10,000
Permit #:
B02-0688
Status:
final
Fee:
$227
Permit Type:
Alterations
Building Type:
N/A
Remodel existing master bathroom
Valuation:
$10,000
Permit #:
B02-1052
Status:
final
Fee:
$212
Permit Type:
Alter/res
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
WL Harder Incorporated License info
Verified License
| License # | 873015 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for WL Harder Incorporated at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 658442 |
| 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 WL Harder Incorporated at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
WL Harder Incorporated Employees
WH
William Louis Harder
Rmo / Ceo / Pres