Updated: Apr 15, 2026
Location and Projects
Address
801 WESTGATE DRIVE, Eureka, CA, 95503
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Mark Sloper Construction
Mark Sloper Construction, 801 Westgate Dr, Eureka, CA (Owned by: Mark Robert Sloper) holds a General Building 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 Mark Sloper Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mark Sloper Construction Services
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Mark Sloper Construction Contact Information
Phone Number: (707) 498-4303
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Address: 801 WESTGATE DRIVE, Eureka, CA 95503
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Building Permits by Mark Sloper Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior remodel to ex residence: remove wall between kitchen & living room expand kitchen into laundry room & relocate laundry to garage addition walk-in closet to master bedroom reconfigure bathrms to make master bathroom larger upgrade electrical service to 200 amps
Valuation:
N/A
Permit #:
BLD-2020-52467
Status:
final
Fee:
$1,087
Permit Type:
Residential
Building Type:
N/A
R&r 12 (e) windows w 12(n) windows per scope
Valuation:
$6,453
Permit #:
B22-0137
Status:
issued
Fee:
$276
Permit Type:
N/A
Building Type:
N/A
Interior remodel to ex kitchen: electrical gas line cabinets fill in doorways remove walls
Valuation:
$8,966
Permit #:
BLD-2019-49844
Status:
final
Fee:
$571
Permit Type:
Residential
Building Type:
N/A
Remove unpermitted work ce21-0077
Valuation:
N/A
Permit #:
B22-0112
Status:
issued
Fee:
$129
Permit Type:
N/A
Building Type:
N/A
Legitimize unpermitted 448sf detached adu
Valuation:
$39,626
Permit #:
B22-0709
Status:
issued
Fee:
$2,231
Permit Type:
N/A
Building Type:
N/A
Convert existing garage to living room (all interior no sq footage added) -refer 52467
Valuation:
$16,428
Permit #:
BLD-2021-53470
Status:
final
Fee:
$1,168
Permit Type:
Residential
Building Type:
N/A
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Mark Sloper Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mark Sloper Construction License info
Verified License
| License # | 923183 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mark Sloper Construction 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 |
Mark Sloper Construction Employees
MS
Mark Robert Sloper
Owner