Updated: Jul 05, 2026
Location and Projects
Address
840 K W 9TH STREET, Upland, CA, 91756
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Custom Asphalt Inc
Custom Asphalt Inc, 840 K W St, Upland, CA (Employees: Dorothy Ellaine Seiker, Michael David Seiker, and Ronald Raymond Seiker) holds a Earthwork And Paving license according to the California license board.
Their BuildZoom score of 83 does not rank in the top 50% of California contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Custom Asphalt Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Custom Asphalt Inc Contact Information
Phone Number: (909) 623-8211
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Address: 840 K W 9TH STREET, Upland, CA 91756
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install 22 500 lf of asphalt berms
Valuation:
N/A
Permit #:
B00-034-896
Status:
triage
Fee:
$2,314
Permit Type:
N/A
Building Type:
N/A
Sawcut and remove air conditioning. excavate backfill at 1601 steel rd
Valuation:
N/A
Permit #:
SC0-000-537
Status:
issued
Fee:
$526
Permit Type:
Street cut
Building Type:
N/A
Grading for proposed trash enclosure
Valuation:
$51
Permit #:
20030-10000-06606
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Proposed trash enclosure
Valuation:
$10,000
Permit #:
20020-10000-01582
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Norton school striping/median plan for central avenue
Valuation:
$23,780
Permit #:
E1300794
Status:
final
Fee:
$1,986
Permit Type:
N/A
Building Type:
N/A
Construct median barrier and striping
Valuation:
N/A
Permit #:
E1301555
Status:
issued
Fee:
$674
Permit Type:
N/A
Building Type:
N/A
Cut 2 680 sf of asphalt
Valuation:
N/A
Permit #:
SC0-000-929
Status:
triage
Fee:
$3,046
Permit Type:
Street cut
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Custom Asphalt Inc License info
Verified License
| License # | 387908 |
| Status | Active |
| State | California |
| Type | Earthwork And Paving |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Custom Asphalt Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
83
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
Custom Asphalt Inc Employees
DS
Dorothy Ellaine Seiker
Officer
MS
Michael David Seiker
Officer
RS
Ronald Raymond Seiker
Sole Owner