Updated: Apr 06, 2026
Location and Projects
Address
50 W 5th St, Eureka, CA, 95501
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Building Construction
Their BuildZoom score of 0 does not rank in the top 50% of California contractors.
If you are thinking of hiring Building Co, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Building Co Services
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Building Co Contact Information
Phone Number: (707) 445-0786
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Address: 50 W 5th St, Eureka, CA 95501
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove unpermitted workinside & repairdamage from fire
Valuation:
$600
Permit #:
B13-0896
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
New triplex
Valuation:
$258,639
Permit #:
B05-0683
Status:
FINALED
Fee:
$4,478
Permit Type:
N/A
Building Type:
N/A
Duplex w garages below
Valuation:
$246,000
Permit #:
B05-0790
Status:
FINALED
Fee:
$3,782
Permit Type:
N/A
Building Type:
N/A
Replacing 4 windows (no change in size)
Valuation:
$4,600
Permit #:
B08-0582
Status:
FINALED
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Replace siding
Valuation:
$3,000
Permit #:
B05-0306
Status:
EXPIRED
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
H2003-0026
Status:
N/A
Fee:
$230
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
A03-0050
Status:
N/A
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
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Building Co License info
License Not Verified
| License # | CA866549 |
| Status | Active |
| State | California |
| Type | General Building Contractor |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of November, 2014. Check the current license status of Building Co with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 706416 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 Building Co at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 866549 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 Building Co at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Building Co, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Building Co Employees
JM
John Walter Mielke
Sole Owner
SM
Steven Talbot Mielke
General Partner