Updated: Jul 02, 2026
Location and Projects
Address
P O BOX 21, St Helena, CA, 94574
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MC CORNACK ASSOCIATES CONSTRUCTION INC
MC CORNACK ASSOCIATES CONSTRUCTION INC, St, Po Box 21, St Helena, CA (Employee: Clark Wellwood Mc Cornack Jr) holds a General Building license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring MC CORNACK ASSOCIATES CONSTRUCTION INC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
MC CORNACK ASSOCIATES CONSTRUCTION INC Services
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MC CORNACK ASSOCIATES CONSTRUCTION INC Contact Information
Phone Number: (707) 481-5080
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Address: P O BOX 21, St Helena, CA 94574
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Building Permits by MC CORNACK ASSOCIATES CONSTRUCTION INC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Special inspection to determine movability to cabin and attached deck. verify structure is a single family dwelling and meets code requirements to be relocated. demolish permit to be pulled separately
Valuation:
N/A
Permit #:
B-253699
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Homesite/1-4.9 acres
Demolition of an existing 400 sf cabin and attached deck. permit to include fencing and cap off utilities. csa 48 scc fire sra-high
Valuation:
N/A
Permit #:
B-254090
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Homesite/1-4.9 acres
No Description Available
Valuation:
$47,657
Permit #:
B02-00187
Status:
final
Fee:
$1,255
Permit Type:
N/A
Building Type:
N/A
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MC CORNACK ASSOCIATES CONSTRUCTION INC License info
Verified License
| License # | 541531 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for MC CORNACK ASSOCIATES CONSTRUCTION INC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
MC CORNACK ASSOCIATES CONSTRUCTION INC Employees
CJ
Clark Wellwood Mc Cornack Jr
Rmo / Ceo / Pres