Updated: Mar 02, 2026
Location and Projects
Address
P O BOX 4793, Foster City, CA, 94404
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Ness Plumbing & Backflow
Ness Plumbing & Backflow, Foster, Po Box 4793, Foster City, CA (Owned by: James William Ness) 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 Ness Plumbing & Backflow, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Ness Plumbing & Backflow Services
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Ness Plumbing & Backflow Contact Information
Phone Number: (530) 523-6001
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Address: P O BOX 4793, Foster City, CA 94404
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Ness Plumbing & Backflow Foster City
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ness Plumbing & Backflow has a BuildZoom score of 98, which places them above 84% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that Ness Plumbing & Backflow has worked on at least
6.0 projects over the past 3 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.
Experience
|
6 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Ness Plumbing & Backflow mostly works on
plumbing project
projects.
Pricing
|
1 project
|
$5k-$20k |
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.
Building Permits by Ness Plumbing & Backflow
This is a sample of this contractor's permits. Click here to access their complete permit history.
New gas line for gas insert fireplace shut off valve log lig
Valuation:
N/A
Permit #:
P2021-0124
Status:
final
Fee:
$191
Permit Type:
plumbing
Building Type:
N/A
Upgrade water service from meter to house valve. 1-1/2 install new backflow 975xl
Valuation:
$4,000
Permit #:
MEP-2021-281862
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install backflow device on freshwater domestic line per county water district high tech beauty salon store
Valuation:
N/A
Permit #:
2015 035327 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install back flow device from city main to main property water service per county water district sams bbq
Valuation:
$400
Permit #:
2015 035308 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install backflow device on freshwater domestic line per county water district dr. kenneth hua
Valuation:
N/A
Permit #:
2015 035349 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install backflow device on freshwater domestic line per county water district foothill lounge
Valuation:
N/A
Permit #:
2015 035328 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install backflow device on freshwater domestic line per county water district ez market
Valuation:
N/A
Permit #:
2015 035347 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install backflow device on freshwater domestic line per county water district ez mail
Valuation:
N/A
Permit #:
2015 035352 CI
Status:
final
Fee:
N/A
Permit Type:
Restaurant
Building Type:
N/A
Install backflow device on existing water line
Valuation:
N/A
Permit #:
BLD2015-02223
Status:
final
Fee:
$174
Permit Type:
N/A
Building Type:
N/A
Install backflow device to existing water line
Valuation:
N/A
Permit #:
BLD2015-02224
Status:
final
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Install backflow device to existing water line
Valuation:
N/A
Permit #:
BLD2015-01488
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Install backflow device on existing water line
Valuation:
N/A
Permit #:
BLD2015-01437
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
# scanned # install backflow device
Valuation:
N/A
Permit #:
BLD2016-01107
Status:
final
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
# scanned # install backflow device
Valuation:
N/A
Permit #:
BLD2016-01106
Status:
final
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
# scanned # install backflow device
Valuation:
N/A
Permit #:
BLD2016-01105
Status:
final
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
# scanned # install backflow device
Valuation:
N/A
Permit #:
BLD2016-01104
Status:
final
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Install backflow device to existing water line
Valuation:
N/A
Permit #:
BLD2015-01488
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Install backflow device on existing water line
Valuation:
N/A
Permit #:
BLD2015-02223
Status:
final
Fee:
$174
Permit Type:
N/A
Building Type:
N/A
Install backflow device to existing water line
Valuation:
N/A
Permit #:
BLD2015-02224
Status:
final
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Install backflow device on existing water line
Valuation:
N/A
Permit #:
BLD2015-01437
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
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Ness Plumbing & Backflow Reviews
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Verified License
BuildZoom confirmed this contractor's license
Ness Plumbing & Backflow License info
Verified License
| License # | 883052 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Ness Plumbing & Backflow 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 | Platte River Insurance Company |
| Bond Value | $15,000 |
25
Permits
- Building permit records show that Ness Plumbing & Backflow has worked on 25 permitted projects.
Ness Plumbing & Backflow Employees
JN
James William Ness
Owner