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Updated: Feb 05, 2026
Location and Projects
Address
PO BOX 3533, Napa, CA, 94558
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Hermes plumbing Services
Hermes plumbing Services, Napa, Po Box 3533, Napa, CA (Employee: Ryan Michael Hermes) holds a Plumbing license according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Hermes plumbing Services, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Hermes plumbing Services Services
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Hermes plumbing Services Contact Information
Phone Number: (707) 690-8172
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Address: PO BOX 3533, Napa, CA 94558
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Building Permits by Hermes plumbing Services
This is a sample of this contractor's permits. Click here to access their complete permit history.
Inv2510-0005 - emergency water leak r/r 1"copper
Valuation:
N/A
Permit #:
P2510-0014
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace (2) 40 gallon water heaters. water heaters are to be installed for both 3042 & 3044 market st
Valuation:
N/A
Permit #:
PP20210902118
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove & replace sw to upgrade water service
Valuation:
N/A
Permit #:
EP2510-0042
Status:
issued
Fee:
N/A
Permit Type:
Pw
Building Type:
N/A
Convert laundry room to half bath-no altered walls
Valuation:
N/A
Permit #:
BLD21-8244
Status:
final
Fee:
$616
Permit Type:
N/A
Building Type:
N/A
Water heater replacement in garage 50 gallon
Valuation:
N/A
Permit #:
B21-1346
Status:
final
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Convert laundry room to half bathroom
Valuation:
N/A
Permit #:
BLD21-7092
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Address: 3042-3044 market: replace (2) 4 gallon tank water heaters
Valuation:
N/A
Permit #:
PP20210827987
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Verified License
BuildZoom confirmed this contractor's license
Hermes plumbing Services License info
Verified License
| License # | 1069597 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Hermes plumbing Services at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Sirius America Insurance Company |
Hermes plumbing Services Employees
RH
Ryan Michael Hermes
Sole Owner