Updated: Jan 22, 2026
Location and Projects
Address
430 Manzanita Dr, Angwin, CA, 94508
Use our bidding system to
request a quote
ST. Helena plumbing
ST. Helena plumbing, 430 Manzanita Dr, Angwin, CA (Owned by: Mitchell Kent Williams) holds a Plumbing 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 ST. Helena plumbing, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
ST. Helena plumbing Services
Start a project today:
ST. Helena plumbing Contact Information
Phone Number: (707) 230-0856
Address: 430 Manzanita Dr, Angwin, CA 94508
ST. Helena plumbing Angwin
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
ST. Helena plumbing has a BuildZoom score of 96, which places them above 80% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
Our building permit records indicate that ST. Helena plumbing has worked on at least
1.0 project over the past 2 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
No Description Available
Valuation:
$1,970
Permit #:
BD2411-006
Status:
issued
Fee:
$52
Permit Type:
New
Building Type:
N/A
Prune 15 city heritage trees
Valuation:
N/A
Permit #:
PW1512-004
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Shhs homecoming parade
Valuation:
N/A
Permit #:
PW1609-017
Status:
final
Fee:
$200
Permit Type:
Minor
Building Type:
N/A
Closure of lafata at dowdell & mills city work
Valuation:
N/A
Permit #:
PW1705-024
Status:
final
Fee:
N/A
Permit Type:
Minor
Building Type:
N/A
Remove tree @ stonebridge well pad
Valuation:
N/A
Permit #:
PW1508-014
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Shared banner harvest & fd
Valuation:
N/A
Permit #:
PW1709-017
Status:
final
Fee:
N/A
Permit Type:
Minor
Building Type:
N/A
Shared banner harvest & fd
Valuation:
N/A
Permit #:
PW1709-015
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
City 4th of july banner
Valuation:
N/A
Permit #:
PW1606-001
Status:
final
Fee:
N/A
Permit Type:
New
Building Type:
N/A
2008 sq ft interior remodel
Valuation:
$115,000
Permit #:
BD1910-023
Status:
final
Fee:
$3,693
Permit Type:
Remodel
Building Type:
N/A
Homecoming parade
Valuation:
N/A
Permit #:
PW1509-005
Status:
final
Fee:
$200
Permit Type:
Minor
Building Type:
N/A
Tree removal
Valuation:
N/A
Permit #:
PW1409-005
Status:
final
Fee:
N/A
Permit Type:
Major
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PW1708-012
Status:
issued
Fee:
$200
Permit Type:
Minor
Building Type:
N/A
Replace existing water fountain with compliant fountain
Valuation:
N/A
Permit #:
BDR2007-015
Status:
issued
Fee:
$3
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PW1802-008
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
N/A
ST. Helena plumbing Reviews
BuildZoom hasn't received any reviews for ST. Helena plumbing. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
ST. Helena plumbing License info
Verified License
| License # | 671970 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for ST. Helena plumbing 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 | Western National Mutual Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
ST. Helena plumbing Employees
MW
Mitchell Kent Williams
Owner