Updated: Jun 03, 2026
Location and Projects
Address
Oshkosh, WI, 54904
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Marx Mechanical Inc
Marx Mechanical Inc at WI 54904, held a HVAC/Mechanical Contractor license (#245277) with the Milwaukee contractors license board. We last verified the license was inactive on 05-22-2026.
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 project planner to be easily matched to qualified, licensed professionals in your area.
Marx Mechanical Inc Contact Information
Phone Number: (920) 235-6510
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new central a/c with lennox model #13acxn030-230-19
Valuation:
$2,750
Permit #:
201502778
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace & a/c with lennox two stage furnace & a/c
Valuation:
$6,400
Permit #:
201502919
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Modifying the ductwork for a couple of offices to balance the airflow.
Valuation:
$1,400
Permit #:
201501674
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace rtu for dining room and bar area (lennox m# kga300s)
Valuation:
$26,950
Permit #:
201401314
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace and add central a/c
Valuation:
$3,800
Permit #:
201502662
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace boiler system with 96% efficient boiler system.
Valuation:
$10,000
Permit #:
201403030
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install central a/c unit with blower fan coil, lennox model #13acx-030-203-17
Valuation:
$3,685
Permit #:
201400502
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing the a/c unit.
Valuation:
$3,400
Permit #:
201503217
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install unit heater and repair existing equipment
Valuation:
$4,435
Permit #:
201500397
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace central a/c
Valuation:
$2,600
Permit #:
201502920
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace and install new a/c
Valuation:
$0
Permit #:
201500088
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sfr/ replave furnace - chimney being lined with 3" flex-l liner ck #11081
Valuation:
$3,400
Permit #:
160036
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace a/c unit with lennox 13acxn024
Valuation:
$2,720
Permit #:
201502139
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace boiler with burnham 304ni
Valuation:
$3,700
Permit #:
201402550
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace a/c with lennox 2 ton unit
Valuation:
$2,425
Permit #:
201400936
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Commercial / replace infra-red heaters with new units paid with check #10986
Valuation:
$5,000
Permit #:
159521
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace and a/c with lennox
Valuation:
$5,965
Permit #:
201401134
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace air conditioning with lennox model #13acx-024
Valuation:
$2,400
Permit #:
201401448
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace a/c with lennox 3 ton
Valuation:
$2,900
Permit #:
201502097
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace and a/c
Valuation:
$6,000
Permit #:
201501560
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Marx Mechanical Inc Reviews
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Marx Mechanical Inc License info
Inactive License
| License # | 245277 |
| 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 Marx Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 245277-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 Marx Mechanical Inc 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 Marx Mechanical Inc, click “This is My Business” to update your information.
65
Permits
- Building permit records show that Marx Mechanical Inc has worked on 65 permitted projects.
Marx Mechanical Inc Employees
JM
Joseph Carl Marx
Owner
JM
Joseph Marx