Updated: Feb 10, 2026
Location and Projects
Address
Warren, MI, 48093
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Marchwinski, Alex Jr Construction
Marchwinski, Alex Jr, Warren, MI (Owned by: March Mechanical Llc) holds a Mechanical Contractor license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 97 ranks in the top 18% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Marchwinski, Alex Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Marchwinski, Alex Jr Services
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Marchwinski, Alex Jr Contact Information
Phone Number: (810) 560-0492
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Redplace one unit added on 3 more remote terminal unit total = 4 rtus
Valuation:
N/A
Permit #:
PM2024-0360
Status:
suspended
Fee:
$992
Permit Type:
Mechanical
Building Type:
N/A
Install new furnace air conditioning with duct work for city of howell pb20-238 building -out of office space contiguous to existing office space in western half of the existing building
Valuation:
N/A
Permit #:
PMEC2021-00374
Status:
final
Fee:
$100
Permit Type:
Alteration
Building Type:
N/A
Replace 4 rooftop units
Valuation:
N/A
Permit #:
PM2024-1068
Status:
issued
Fee:
$482
Permit Type:
Mechanical
Building Type:
N/A
Reconnect 4 roof tops
Valuation:
N/A
Permit #:
PE2024-0672
Status:
suspended
Fee:
N/A
Permit Type:
Electrical
Building Type:
N/A
Reconnect 4 rooftops
Valuation:
N/A
Permit #:
PE2024-1218
Status:
issued
Fee:
$75
Permit Type:
Electrical
Building Type:
N/A
Reconnect 4 rtus
Valuation:
N/A
Permit #:
PE2024-0673
Status:
suspended
Fee:
$191
Permit Type:
Electrical
Building Type:
N/A
Install 2 new 4 ton rooftops with ductwork and 2 bathroom fans. 10-1-2020 amended permit added: 17. gas piping (2)
Valuation:
N/A
Permit #:
PM20-00602
Status:
final
Fee:
$310
Permit Type:
Commericial
Building Type:
N/A
Com-int medical weight loss 2015 mbc use b type 2b occupant load 15 fire suppression yes move registers
Valuation:
N/A
Permit #:
PM20-0116
Status:
final
Fee:
$50
Permit Type:
Mechanical
Building Type:
N/A
Gas burners 75001-150000 btu; refrigeration 1.5-5 hp; distribution area under 5000 sq ft; bath/kitchen exhaust fan (2)
Valuation:
N/A
Permit #:
PM2019-0959
Status:
issued
Fee:
$95
Permit Type:
Mechanical
Building Type:
N/A
1 gas burner - 150, 001-400, 000 btu; refrigeration - 5 hp to 20 hp; distribution - area under 5000 sq ft pb2019-2034
Valuation:
N/A
Permit #:
PM2019-1940
Status:
issued
Fee:
$110
Permit Type:
Mechanical
Building Type:
N/A
Gas burner 400, 001-2, 500, 000 btu; refrigeration air conditioning 5 - 20hp; distribution area over 5, 000 sq ft; 4 bath/kitchen exhaust fans; pb2017-2774;
Valuation:
N/A
Permit #:
PM2018-0102
Status:
final
Fee:
$150
Permit Type:
Mechanical
Building Type:
N/A
Culvers - 6 gas piping openings ***final inspection required***
Valuation:
N/A
Permit #:
PM20-0018
Status:
final
Fee:
$130
Permit Type:
New structure
Building Type:
N/A
New furnace air conditioning duct work and 2 bathroom fans
Valuation:
N/A
Permit #:
PM2020-0823
Status:
issued
Fee:
$95
Permit Type:
Mechanical
Building Type:
N/A
Distribution-duct system
Valuation:
N/A
Permit #:
PM21-1208
Status:
issued
Fee:
$125
Permit Type:
1011-nonalt/add/r...
Building Type:
N/A
Replace furnace and air conditioning on bottom floor with duct new furnace air conditioning humidifier & duct
Valuation:
N/A
Permit #:
PM17-000934
Status:
final
Fee:
$580
Permit Type:
N/A
Building Type:
N/A
Lovesac: move heat runs and replace registers
Valuation:
N/A
Permit #:
MECH20-1071
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Duct alterations interior buildout for play a bowls
Valuation:
N/A
Permit #:
PM22-1413
Status:
final
Fee:
$600
Permit Type:
Alteration
Building Type:
N/A
Distribution area under 5, 000 sq ft;
Valuation:
N/A
Permit #:
PM2020-0454
Status:
issued
Fee:
$40
Permit Type:
Mechanical
Building Type:
N/A
Distribution area under 5, 000 sq ft;
Valuation:
N/A
Permit #:
PM2020-0453
Status:
issued
Fee:
$40
Permit Type:
Mechanical
Building Type:
N/A
Install 2 new bathroom exhaust fans
Valuation:
N/A
Permit #:
PM 20-0063
Status:
issued
Fee:
$110
Permit Type:
Remodel
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Marchwinski, Alex Jr License info
Verified License
| License # | 7109251 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Marchwinski, Alex Jr at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7109251 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Marchwinski, Alex Jr with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-2037 |
| Status | Inactive |
| City | Ann Arbor |
| Type | Contractor |
- According to the The City of Ann Arbor, MI, 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 Marchwinski, Alex Jr at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7101576 |
| Status | Inactive |
| State | Michigan |
| Type | Mechanical Contractor |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Marchwinski, Alex Jr at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 7101576 |
| Status | Inactive |
| State | Michigan |
| Type | Mechanical Contractor |
- According to the Michigan Department of Licensing & Regulatory Affairs, 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 Marchwinski, Alex Jr at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-7109251 |
| Status | Inactive |
| City | Ann Arbor |
| Type | Mechanical |
- According to the The City of Ann Arbor, MI, 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 Marchwinski, Alex Jr at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
251
Permits
- Building permit records show that Marchwinski, Alex Jr has worked on 251 permitted projects.
Marchwinski, Alex Jr Employees
AM
Alex Marchwinski
Owner
AM
Alex A Marchwinski
CM
Carl J Marchwinski
EC
Empire Heating & Cooling
Contractor
ML
March Mechanical Llc
Owner
MJ
Marchwinski, Alex Andrew Jr.
Owner