Updated: May 19, 2026
Location and Projects
Address
W5471 SUMAC RD, Plymouth, WI, 53073
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Korff Plumbing LLC
Korff Plumbing LLC, W5471 Sumac Rd, Plymouth, WI (Owned by: Corey R Korff) holds a Plumber license and 3 other licenses according to the Wisconsin Rapids license board.
Their BuildZoom score of 110 ranks in the top 4% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Korff Plumbing LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Korff Plumbing LLC Services
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Korff Plumbing LLC Contact Information
Phone Number: (920) 467-4333
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Address: W5471 SUMAC RD, Plymouth, WI 53073
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Korff Plumbing LLC Plymouth
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Korff Plumbing LLC has a BuildZoom score of 110, which places them above 96% of 94,017 contractors in Wisconsin.
Activity
|
18 projects
|
2025 |
|
54 projects
|
2024 |
|
41 projects
|
2023 |
Our building permit records indicate that Korff Plumbing LLC has worked on at least
113.0 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
|
91 projects
|
Plumbing projects |
|
23 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Korff Plumbing LLC mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
3 projects
|
< $5k |
|
54 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $8,600. This graph shows the distribution of these job values.
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.
Replace sewer line from inside the home to the sewer main
Valuation:
N/A
Permit #:
250871
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Replacement of water service from main into home
Valuation:
N/A
Permit #:
250468
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Repair sewer main at sewer main connection
Valuation:
N/A
Permit #:
251568
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Replace water lateral from house to main
Valuation:
N/A
Permit #:
250036
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Install water sanitary storm
Valuation:
$71,450
Permit #:
243955
Status:
issued
Fee:
$2,410
Permit Type:
plumbing
Building Type:
N/A
Replace leaking lead water service
Valuation:
N/A
Permit #:
250205
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Emergency water lateral replacement
Valuation:
N/A
Permit #:
250182
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Lead water service replacement
Valuation:
N/A
Permit #:
250730
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Replace lead water service
Valuation:
N/A
Permit #:
250251
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Relay and meter setting
Valuation:
N/A
Permit #:
250210
Status:
issued
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Replace catch basin
Valuation:
N/A
Permit #:
250765
Status:
issued
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Water lateral
Valuation:
$8,500
Permit #:
242722
Status:
issued
Fee:
$50
Permit Type:
plumbing
Building Type:
N/A
Removing house trap
Valuation:
N/A
Permit #:
250253
Status:
complete
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Replace water lateral
Valuation:
N/A
Permit #:
250035
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Sewer replacement
Valuation:
N/A
Permit #:
251236
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
New sewer & water
Valuation:
N/A
Permit #:
250915
Status:
complete
Fee:
$110
Permit Type:
plumbing
Building Type:
N/A
Exterior plumbing
Valuation:
N/A
Permit #:
250001
Status:
issued
Fee:
$2,490
Permit Type:
plumbing
Building Type:
N/A
Abandonment of service laterals on n 6th and n 7th into oldhospital lot 2629 n 7th st
Valuation:
N/A
Permit #:
241155
Status:
issued
Fee:
$100
Permit Type:
Excavate in city ...
Building Type:
N/A
Repair sewer
Valuation:
N/A
Permit #:
251547
Status:
issued
Fee:
$50
Permit Type:
plumbing
Building Type:
N/A
Lead service
Valuation:
N/A
Permit #:
250467
Status:
issued
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
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Korff Plumbing LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Korff Plumbing LLC License info
License Not Verified
| License # | 655645 - PM |
| Status | Active |
| City | Wisconsin Rapids |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Korff Plumbing LLC with the City of Wisconsin Rapids
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 655645-PM |
| Status | Active |
| State | Wisconsin |
| Type | Plumber |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Korff Plumbing LLC at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1133058 |
| Status | Active |
| State | Wisconsin |
| Type | Building Contractor Registration |
- BuildZoom has not verified this license since January, 2010.
Verify this license's status for Korff Plumbing LLC at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 655645 |
| Status | Inactive |
| City | Milwaukee |
| Type | Plumbing |
- According to the City of Milwaukee License Search, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Korff Plumbing LLC at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Federated Mutual |
309
Permits
- Building permit records show that Korff Plumbing LLC has worked on 309 permitted projects.
Korff Plumbing LLC Employees
CK
Corey Korff
CK
Corey R Korff
Owner
KC
Korff Corey