Updated: Dec 02, 2025
Location and Projects
Address
Lincoln Park, MI, 48146
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Sean M Koscher HVAC/Mechanical Contractor
Sean M Koscher, Lincoln Park, MI (Owned by: Sean Koscher) holds a Mechanical Contractor license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Sean M Koscher, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sean M Koscher Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Air conditioning unit 5hp (rooftop) duct work 12/01/23 added 1st floor 2 exhaust fans and 3 ton 2 head split unit wine cooler
Valuation:
N/A
Permit #:
PMECH23-0151
Status:
final
Fee:
$256
Permit Type:
Addition
Building Type:
N/A
Mechanical permit for removate building 2 apartments duct work was installed by different contractor split units on roof
Valuation:
N/A
Permit #:
PMECH23-0061
Status:
final
Fee:
$420
Permit Type:
Alteration
Building Type:
N/A
Furnace btu's 60k air conditioning units hp 2.5 ton chimney liner w/furnace humidifiers w/furnace
Valuation:
N/A
Permit #:
PMECH24-0183
Status:
final
Fee:
$185
Permit Type:
Alteration
Building Type:
N/A
Furnace btu's 80, 000 hot water tank air conditioning unit 3 hp humidifiers w furnace
Valuation:
N/A
Permit #:
PMECH24-0112
Status:
final
Fee:
$185
Permit Type:
Alteration
Building Type:
N/A
Furnace btus 60 000 air conditioning unit 2 hp duct work $750 gas piping w pressure test
Valuation:
N/A
Permit #:
PMECH25-0240
Status:
final
Fee:
$270
Permit Type:
Alteration
Building Type:
N/A
Furnace btu's 70k chimney liner/furnace
Valuation:
N/A
Permit #:
PMECH24-0283
Status:
expired
Fee:
$122
Permit Type:
Alteration
Building Type:
N/A
Final circuit - 1 mot & gen 1/4-10 hp
Valuation:
N/A
Permit #:
PELEC24-0330
Status:
final
Fee:
$115
Permit Type:
Alteration
Building Type:
N/A
1 hot water tank
Valuation:
N/A
Permit #:
PMECH23-0182
Status:
final
Fee:
$61
Permit Type:
Water heater inst...
Building Type:
N/A
1 final circuit
Valuation:
N/A
Permit #:
PELEC24-0194
Status:
final
Fee:
$75
Permit Type:
Alteration
Building Type:
N/A
Reconnect -
Valuation:
N/A
Permit #:
PELEC24-0516
Status:
expired
Fee:
$75
Permit Type:
Alteration
Building Type:
N/A
1 final circuit 1 mot. & gen. 1/4 - 10 hp
Valuation:
N/A
Permit #:
PELEC25-0413
Status:
final
Fee:
$115
Permit Type:
Alteration
Building Type:
N/A
Air conditioning unit 1 hp
Valuation:
N/A
Permit #:
PMECH23-0152
Status:
final
Fee:
$93
Permit Type:
Addition
Building Type:
N/A
Furnace chimney liner and humidifier
Valuation:
N/A
Permit #:
PMECH22-0103
Status:
issued
Fee:
$142
Permit Type:
Furnace installation
Building Type:
N/A
Air conditioning same location
Valuation:
N/A
Permit #:
PMECH21-0216
Status:
issued
Fee:
$93
Permit Type:
Air conditioning
Building Type:
N/A
Final circuit
Valuation:
N/A
Permit #:
PELEC22-0117
Status:
issued
Fee:
$75
Permit Type:
Alteration
Building Type:
N/A
Motor for air conditioning
Valuation:
N/A
Permit #:
PELEC21-0363
Status:
issued
Fee:
$90
Permit Type:
Alteration
Building Type:
N/A
Rehook furnace/ac
Valuation:
N/A
Permit #:
PELEC21-0403
Status:
issued
Fee:
$115
Permit Type:
Alteration
Building Type:
N/A
Furnace/ac
Valuation:
N/A
Permit #:
PMECH21-0233
Status:
issued
Fee:
$135
Permit Type:
Furnace installation
Building Type:
N/A
Rehook furnace 07-16-2021 addition on air conditioning motor
Valuation:
N/A
Permit #:
PELEC21-0327
Status:
issued
Fee:
$115
Permit Type:
Alteration
Building Type:
N/A
07-16-2021 addition air conditioning to mech-furn permit
Valuation:
N/A
Permit #:
PMECH21-0194
Status:
issued
Fee:
$230
Permit Type:
Furnace installation
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Sean M Koscher License info
Verified License
| License # | 7117392 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Sean M Koscher 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 # | 7117384 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2016. Check the current license status of Sean M Koscher with 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 # | 7117392 |
| 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 Sean M Koscher 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 # | 7117385 |
| 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 Sean M Koscher 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 # | 7117384 |
| 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 Sean M Koscher 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 # | 7117385 |
| 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 Sean M Koscher at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
15
Permits
- Building permit records show that Sean M Koscher has worked on 15 permitted projects.
Sean M Koscher Employees
SK
Sean Koscher
Owner
SK
Sean M Koscher