Updated: Nov 25, 2025
Location and Projects
Address
Saint Clair, MI, 48079
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John Kosowski Electrician
John Kosowski, Saint Claire, MI (Owned by: John Kosowski) holds a Electrical license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 92 ranks in the top 32% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John Kosowski, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John Kosowski Contact Information
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John Kosowski Saint Claire
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John Kosowski has a BuildZoom score of 92, which places them above 68% of 167,179 contractors in Michigan.
Activity
|
1 project
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that John Kosowski has worked on at least
2.0 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.
Pricing
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.
Service change only on existing home. changing out to a 200amp service
Valuation:
N/A
Permit #:
PE25-0535
Status:
issued
Fee:
$95
Permit Type:
Electrical
Building Type:
N/A
Pb19-2621 addition recessed lights repair wiring due to flood. addition smoke detectors
Valuation:
N/A
Permit #:
PE20-0177
Status:
issued
Fee:
$127
Permit Type:
Electrical
Building Type:
N/A
House service: three phase: 100amp or less. 1 electrical unit
Valuation:
N/A
Permit #:
PE200264
Status:
issued
Fee:
$110
Permit Type:
Electrical
Building Type:
N/A
Salamander exhibit exotheric bonding replace existing overhead lights wire up 3 new pumps sub panel
Valuation:
N/A
Permit #:
PE18-000173
Status:
final
Fee:
$510
Permit Type:
N/A
Building Type:
N/A
Electrical for fire and security alarm in bio-digestor *rates determined by ray and contractor due to it being a complex project
Valuation:
N/A
Permit #:
PE17009
Status:
final
Fee:
$290
Permit Type:
Electrical
Building Type:
N/A
Reside house only
Valuation:
$5,000
Permit #:
PB23-00968
Status:
final
Fee:
$100
Permit Type:
Siding
Building Type:
N/A
Ug conduit and 1 circuit to bridge to building
Valuation:
N/A
Permit #:
PE18236
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for panda exhibitt **paid extra for additional inspections
Valuation:
N/A
Permit #:
PE18192
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Service suite b
Valuation:
N/A
Permit #:
PE200266
Status:
issued
Fee:
$110
Permit Type:
Electrical
Building Type:
N/A
Service suite a
Valuation:
N/A
Permit #:
PE200265
Status:
issued
Fee:
$110
Permit Type:
Electrical
Building Type:
N/A
Electrical for buddys pizza at zoo
Valuation:
N/A
Permit #:
PE18077
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for giraffe building phase 2
Valuation:
N/A
Permit #:
PE17173
Status:
final
Fee:
$235
Permit Type:
Electrical
Building Type:
N/A
No rooftop
Valuation:
N/A
Permit #:
PE19-000071
Status:
final
Fee:
$2,880
Permit Type:
Electrical
Building Type:
N/A
3 circuits for ansul system
Valuation:
N/A
Permit #:
PE18189
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for giraffe builidng addition
Valuation:
N/A
Permit #:
PE17008
Status:
final
Fee:
$390
Permit Type:
Electrical
Building Type:
N/A
1400 broadway (legal address). interior demolition & renovations on the 2nd floor of an existing office building as per plan
Valuation:
N/A
Permit #:
ELE2016-02005
Status:
N/A
Fee:
N/A
Permit Type:
Mod
Building Type:
Office
1400 broadway (legal address). interior demolition & renovations on the 2nd floor of an existing office building as per plan
Valuation:
N/A
Permit #:
ELE2016-01339
Status:
N/A
Fee:
N/A
Permit Type:
Mod
Building Type:
Office
Otter exhibit - extension of existing otter pond install 3 underwater lights & ground mat new pond
Valuation:
N/A
Permit #:
PE17-000644
Status:
final
Fee:
$80
Permit Type:
Electrical
Building Type:
N/A
Circuits space heater, feeders light fixtures stand by generator. (bio-generator)
Valuation:
N/A
Permit #:
PE16037
Status:
final
Fee:
$395
Permit Type:
Electrical
Building Type:
N/A
Tenant space (ssa) in new penguin bldg; wire recessed led install track lighting 1 general use outlet
Valuation:
N/A
Permit #:
PE16-000389
Status:
final
Fee:
$294
Permit Type:
Electrical
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
John Kosowski License info
License Not Verified
| License # | 6217692 |
| Status | Active |
| State | Michigan |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of John Kosowski with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 6113394 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for John Kosowski 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 # | 6217692 |
| Status | Active |
| State | Michigan |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of John Kosowski 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 # | 6113394 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of John Kosowski with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Required
| Status | Not Required |
- BuildZoom verified in April, 2020 that this contractor does not need a license to be a electrician in Michigan.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | INSP00356 |
| Status | Inactive |
| State | Michigan |
| Type | Building Act 54 Official |
- 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 John Kosowski at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
15
Permits
- Building permit records show that John Kosowski has worked on 15 permitted projects.
John Kosowski Employees
JK
John Kosowski
Owner
JK
John Kosowski