Updated: Oct 18, 2025
Location and Projects
Address
11870 UPPER CIRCLE DRIVE, Grass Valley, CA, 95945
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Principled plumbing Systems
Principled plumbing Systems, 11870 Upper Circle Dr, Grass Valley, CA (Employees: Jennifer Rose Merry and Keether Robert Merry) holds a Plumbing license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Principled plumbing Systems, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Principled plumbing Systems Services
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Principled plumbing Systems Contact Information
Phone Number: (530) 264-0464
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Address: 11870 UPPER CIRCLE DRIVE, Grass Valley, CA 95945
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Principled plumbing Systems Grass Valley
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Principled plumbing Systems has a BuildZoom score of 94, which places them above 76% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Principled plumbing Systems has worked on at least
3.0 projects over the past year.
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
|
3 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Principled plumbing Systems mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$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.
Principled plumbing Systems Reviews
5 out of 5 stars, based on
1
review
-
By Gary P.September 21, 2023Replace water heater
Building Permits by Principled plumbing Systems
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new three bay sink handwashing sink floor drain grease trap and water heater
Valuation:
$6,900
Permit #:
25BLD-0085
Status:
final
Fee:
$280
Permit Type:
plumbing - 2 insp...
Building Type:
N/A
Replace water heater
Valuation:
$6,500
Permit #:
24BLD-0580
Status:
final
Fee:
$172
Permit Type:
Water heater
Building Type:
N/A
Install sewer backflow device and pop-off valve
Valuation:
$700
Permit #:
25BLD-0484
Status:
final
Fee:
$163
Permit Type:
Sewer backflow de...
Building Type:
N/A
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Recent Buildzoom Projects
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Verified License
BuildZoom confirmed this contractor's license
Principled plumbing Systems License info
Verified License
| License # | 1107060 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of October 2025.
Verify this license's status for Principled plumbing Systems at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Employers Preferred Insurance Company |
Principled plumbing Systems Employees
JM
Jennifer Rose Merry
Officer
KM
Keether Robert Merry
Sole Owner
Highly recommend! Prompt, professional service. Reasonably priced and expertly installed my replacement water heater.