Updated: Mar 02, 2026
Location and Projects
Address
223 ALCHEMY WAY, Napa, CA, 94558
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R Nicholsen & Co Construction
R Nicholsen & Co LLC, 223 Alchemy Way, Napa, CA (Employee: Ronald Chris Nicholsen) 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 R Nicholsen & Co LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
R Nicholsen & Co LLC Services
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R Nicholsen & Co LLC Contact Information
Phone Number: (707) 369-2138
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Address: 223 ALCHEMY WAY, Napa, CA 94558
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Residence addition - 9 sq ft; move window door & water heater;
Valuation:
N/A
Permit #:
B2504-0166
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New deck hot tub sauna fire pit outdoor kitchen
Valuation:
N/A
Permit #:
B2504-0165
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert detached shed to adu 257 sq ft; new attached storage
Valuation:
N/A
Permit #:
B2504-0163
Status:
issued
Fee:
N/A
Permit Type:
Conversion
Building Type:
N/A
New pergola; 259 sq ft
Valuation:
N/A
Permit #:
B2504-0164
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
R Nicholsen & Co LLC License info
Verified License
| License # | 1079572 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for R Nicholsen & Co LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Insured
| Insurer | Sutton Specialty Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $100,000 |
R Nicholsen & Co LLC Employees
RN
Ronald Chris Nicholsen
Rmm