Updated: Jun 01, 2026
Location and Projects
Address
P O BOX 2832, Grass Valley, CA, 95945
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R&R Plumbing Works
R&R Plumbing Works, Grass Vly, Po Box 2832, Grass Valley, CA (Employee: Randy Lee Mosbarger) holds a Plumbing license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring R&R Plumbing Works, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
R&R Plumbing Works Services
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R&R Plumbing Works Contact Information
Phone Number: (530) 913-7473
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Address: P O BOX 2832, Grass Valley, CA 95945
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Emergency sewer repair; install backflow preventer and flow relief device as required. work performed toward 4532 s. auburn street
Valuation:
$10,000
Permit #:
14BLD-0067
Status:
final
Fee:
$229
Permit Type:
N/A
Building Type:
N/A
Install sewer backflow prevention and flow-relief device
Valuation:
$1,000
Permit #:
14BLD-0464
Status:
final
Fee:
$144
Permit Type:
N/A
Building Type:
N/A
Natural gas to the generator see permit # 01075206
Valuation:
$0
Permit #:
01075207
Status:
Closed
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Natural gas/gas line/2 free standing stoves
Valuation:
$0
Permit #:
98064568
Status:
Closed
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Install sewer backflow prevention device
Valuation:
$800
Permit #:
16BLD-0282
Status:
final
Fee:
$145
Permit Type:
N/A
Building Type:
N/A
Lpg/extend gas line/h20
Valuation:
N/A
Permit #:
97062006
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Natural gas conversion
Valuation:
$0
Permit #:
98064344
Status:
Closed
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Natural gas/h20
Valuation:
N/A
Permit #:
96059578
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
98065138
Status:
Closed
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
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R&R Plumbing Works License info
Verified License
| License # | 647650 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for R&R Plumbing Works at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
9
Permits
- Building permit records show that R&R Plumbing Works has worked on 9 permitted projects.
R&R Plumbing Works Employees
RM
Randy Lee Mosbarger
Sole Owner