Updated: Jul 05, 2026
Location and Projects
Address
12900 W NATIONAL AVENUE, New Berlin, WI, 53151
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Flat Rate Plumbing and Heating
Flat Rate Plumbing and Heating at 12900 W NATIONAL AVENUE, New Berlin, WI 53151, held a HVAC/Mechanical Contractor license (#224535) with the Milwaukee contractors license board with an expiration date of 03-31-2019. We last verified the license was expired on 06-15-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 94,017 Wisconsin contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.
Flat Rate Plumbing and Heating Services
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Flat Rate Plumbing and Heating Contact Information
Phone Number: (262) 789-1830
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Address: 12900 W NATIONAL AVENUE, New Berlin, WI 53151
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Building Permits by Flat Rate Plumbing and Heating
This is a sample of this contractor's permits. Click here to access their complete permit history.
Misc plumbing and install laundry tub
Valuation:
N/A
Permit #:
P16-0027
Status:
final
Fee:
$60
Permit Type:
General
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164847
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164804
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164608
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164575
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164563
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
164488
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
163405
Status:
plancheck
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
New building drain new stack to toilet tub kitchen and lav new floor drain 40 gallon water heater laundry tub
Valuation:
$5,000
Permit #:
875879
Status:
N/A
Fee:
$93
Permit Type:
N/A
Building Type:
Residential: sing...
Install bathroom tub and tub and shower fct
Valuation:
$10,000
Permit #:
1083410
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: sing...
Water heater install and new water service
Valuation:
$5,000
Permit #:
1100404
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: two-...
Replace main stack vanity and toilet
Valuation:
$10,000
Permit #:
1089094
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: sing...
Taking care of code violations: install new sump pump install new sump pump manifold system re-routing present drainage line outside
Valuation:
$2,000
Permit #:
843897
Status:
N/A
Fee:
$58
Permit Type:
N/A
Building Type:
Residential: sing...
Installation of furnace air conditioner and economizer
Valuation:
$5,000
Permit #:
1060590
Status:
N/A
Fee:
$56
Permit Type:
N/A
Building Type:
Non-residential o...
Installation of furnace air conditioner and economizer
Valuation:
$5,000
Permit #:
1060589
Status:
N/A
Fee:
$71
Permit Type:
N/A
Building Type:
Non-residential o...
Installation of furnace air conditioner and economizer
Valuation:
$5,000
Permit #:
1060587
Status:
N/A
Fee:
$56
Permit Type:
N/A
Building Type:
Non-residential o...
Spot repair on sewer lateral
Valuation:
$5,000
Permit #:
1100859
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: sing...
Hot and cold water repipe hooking up to toilet bathroom tub and lav sink. also replacing 40 ft. of building drain in basement
Valuation:
$10,000
Permit #:
845992
Status:
N/A
Fee:
$63
Permit Type:
N/A
Building Type:
Residential: two-...
Water heater and repipe
Valuation:
$5,000
Permit #:
1083951
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: sing...
Building drain/lateral pull
Valuation:
$5,000
Permit #:
1097469
Status:
N/A
Fee:
$81
Permit Type:
N/A
Building Type:
Residential: sing...
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Flat Rate Plumbing and Heating License info
Inactive License
| License # | 224535 |
| 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 Flat Rate Plumbing and Heating at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 268898 |
| Status | Inactive |
| City | Milwaukee |
| Type | Hvac Contractor |
- 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 Flat Rate Plumbing and Heating at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 268898 |
| Status | Inactive |
| State | Wisconsin |
| Type | Dwelling Contractor |
- According to the Wisconsin Department of Safety and Professional Services, 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 Flat Rate Plumbing and Heating 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 # | 268898-HVACCONT |
| Status | Inactive |
| State | Wisconsin |
| Type | Hvac Contractor |
- According to the Wisconsin Department of Safety and Professional Services, 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 Flat Rate Plumbing and Heating at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Flat Rate Plumbing and Heating, click “This is My Business” to update your information.
Insured
| Insurer | Cincinnati Insurance |
129
Permits
- Building permit records show that Flat Rate Plumbing and Heating has worked on 129 permitted projects.
Flat Rate Plumbing and Heating Employees
AF
Andrew Fink
Owner
LG
Lester Gumieny
LJ
Lester M Gumieny Jr