Updated: Nov 25, 2025
Location and Projects
Address
Montague, MI, 49437
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Korthase and Sons Electrician
Korthase and Sons, Montague, MI (Owned by: Tim Korthase) holds a Electrical Contractor license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 98 ranks in the top 16% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Korthase and Sons, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Korthase and Sons Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition switch and move light
Valuation:
N/A
Permit #:
PE22-061V
Status:
final
Fee:
$112
Permit Type:
Electrical
Building Type:
N/A
Remove existing wiring addition new wiring new circuits and new lighting for remodel
Valuation:
N/A
Permit #:
PE210059
Status:
issued
Fee:
$128
Permit Type:
Electrical
Building Type:
N/A
Application service circuits lighting fixtures feeders additional inspection
Valuation:
N/A
Permit #:
PE21863
Status:
issued
Fee:
$170
Permit Type:
Electrical
Building Type:
N/A
Application power outlets feeders additional inspection
Valuation:
N/A
Permit #:
PE21808
Status:
issued
Fee:
$135
Permit Type:
Electrical
Building Type:
N/A
Application power outlets feeders additional inspection
Valuation:
N/A
Permit #:
PE21747
Status:
final
Fee:
$135
Permit Type:
Electrical
Building Type:
N/A
Application power outlets feeders additional inspection
Valuation:
N/A
Permit #:
PE21646
Status:
final
Fee:
$135
Permit Type:
Electrical
Building Type:
N/A
Installing a transfer switch and back up generator
Valuation:
N/A
Permit #:
PEL21-0386
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install a transfer switch and back up generator
Valuation:
N/A
Permit #:
PEL21-0180
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Generator installation
Valuation:
N/A
Permit #:
PEL22-0384
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Generator install
Valuation:
N/A
Permit #:
PME22-0519
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new panel
Valuation:
N/A
Permit #:
PE22-008V
Status:
final
Fee:
$65
Permit Type:
Electrical
Building Type:
N/A
Generator installationno grill was installed
Valuation:
N/A
Permit #:
PM23002414
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of transfer switch and generator
Valuation:
N/A
Permit #:
PE23001412
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of transfer swithch and generator
Valuation:
N/A
Permit #:
PE23001324
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of a transfer switch for whole house generator
Valuation:
N/A
Permit #:
PEL20-0303
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of transfer and generator
Valuation:
N/A
Permit #:
PE23001198
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Application generator
Valuation:
N/A
Permit #:
PM21937
Status:
issued
Fee:
$96
Permit Type:
Mechanical
Building Type:
N/A
Wiring new house at location where existing house is being torn down
Valuation:
N/A
Permit #:
PEL19-0405
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Service upgrade and wiring new addition
Valuation:
N/A
Permit #:
PEL20-0107
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Generator and grill installation
Valuation:
N/A
Permit #:
PM23002212
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Korthase and Sons License info
Verified License
| License # | 6104591 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Korthase and Sons at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 6104591 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- BuildZoom has not verified this license since October, 2024.
Verify this license's status for Korthase and Sons 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 # | 6202212 |
| Status | Inactive |
| State | Michigan |
| Type | Electrical |
- 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 Korthase and Sons 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 # | 6202212 |
| Status | Inactive |
| State | Michigan |
| Type | Electrical |
- 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 Korthase and Sons 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 # | 6101329 |
| Status | Inactive |
| State | Michigan |
| Type | Electrical 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 Korthase and Sons 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 # | 6101329 |
| Status | Inactive |
| State | Michigan |
| Type | Electrical 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 Korthase and Sons at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
69
Permits
- Building permit records show that Korthase and Sons has worked on 69 permitted projects.
Korthase and Sons Employees
FK
Fred Korthase
Owner
FK
Fred W Korthase
TK
Tim Korthase
Owner
TK
Tim J Korthase