Updated: Feb 10, 2026
Location and Projects
Address
Whitmore Lake, MI, 48189
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Kropf Mechanical Service Co
Kropf Mechanical Service Co, Whitmore Lake, MI (Owned by: Kropf Service Co) holds a Mechanical Contractor license and 6 other licenses according to the Michigan license board.
Their BuildZoom score of 95 ranks in the top 22% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kropf Mechanical Service Co, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kropf Mechanical Service Co Contact Information
Phone Number: (734) 427-6700
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Building Permits by Kropf Mechanical Service Co
This is a sample of this contractor's permits. Click here to access their complete permit history.
Reconnect electrical to 4 rooftop hvac units
Valuation:
N/A
Permit #:
PE 23-0619
Status:
final
Fee:
$100
Permit Type:
Remodel
Building Type:
N/A
Replace 4 rooftop hvac units
Valuation:
N/A
Permit #:
PM 23-0527
Status:
final
Fee:
$325
Permit Type:
Remodel
Building Type:
N/A
Replace roof on house and garage (5) replacement windows
Valuation:
N/A
Permit #:
PB241174
Status:
final
Fee:
$84
Permit Type:
Exterior renovati...
Building Type:
N/A
Replace hvac rooftop unit asian buffet sheldon place
Valuation:
N/A
Permit #:
PM22-0078
Status:
approved
Fee:
$110
Permit Type:
Heating
Building Type:
N/A
Replace rooftop hvac unit little gym sheldon place
Valuation:
N/A
Permit #:
PM22-0077
Status:
approved
Fee:
$110
Permit Type:
Heating
Building Type:
N/A
Replace rooftop hvac unit pella window sheldon place
Valuation:
N/A
Permit #:
PM22-0076
Status:
approved
Fee:
$110
Permit Type:
Heating
Building Type:
N/A
Replace rooftop hvac unit gnc sheldon place
Valuation:
N/A
Permit #:
PM22-0079
Status:
approved
Fee:
$110
Permit Type:
Heating
Building Type:
N/A
Gas burner 0-75, 000 btu (4x); gas burner 75, 001-150, 000 btu; gas burner 150, 001-400, 000 btu; refrigeration air conditioning 1.5-5 hp; refrigeration air conditioning 5-20 hp (5x);
Valuation:
N/A
Permit #:
PM2018-1438
Status:
applied
Fee:
$400
Permit Type:
Mechanical
Building Type:
N/A
Replace cooling remote terminal unit sheldon place
Valuation:
N/A
Permit #:
PM19-0689
Status:
expired
Fee:
$125
Permit Type:
Heating
Building Type:
N/A
New faucet toilet
Valuation:
N/A
Permit #:
PP240317
Status:
final
Fee:
$97
Permit Type:
plumbing
Building Type:
N/A
Replace cooling remote terminal unit sheldon place
Valuation:
N/A
Permit #:
PM19-0690
Status:
expired
Fee:
$110
Permit Type:
Heating
Building Type:
N/A
Pnc: install split cooling unit 2 smoke detectors
Valuation:
N/A
Permit #:
MECH19-2563
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Carrier (rtu) - 2 each 7-1/2 ton
Valuation:
N/A
Permit #:
PR20-0011
Status:
issued
Fee:
$154
Permit Type:
Refrigeration
Building Type:
N/A
Install it room cooling units
Valuation:
N/A
Permit #:
PM210140
Status:
issued
Fee:
$227
Permit Type:
Mechanical
Building Type:
N/A
Install cooling unit for it room
Valuation:
N/A
Permit #:
PM210139
Status:
issued
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
Distribution area under 5000 sq ft
Valuation:
N/A
Permit #:
PM2018-2156
Status:
issued
Fee:
$40
Permit Type:
Mechanical
Building Type:
N/A
Replace hvac & remote terminal unit
Valuation:
N/A
Permit #:
PM17-0728
Status:
final
Fee:
$125
Permit Type:
Heating
Building Type:
N/A
Alteration to existing duct system
Valuation:
N/A
Permit #:
PM18-0401
Status:
issued
Fee:
$110
Permit Type:
Alteration
Building Type:
N/A
Replace hot water heating boiler
Valuation:
N/A
Permit #:
ELEC17-2451
Status:
final
Fee:
N/A
Permit Type:
Electrical
Building Type:
N/A
Replace hot water heating boiler
Valuation:
N/A
Permit #:
ELEC17-2450
Status:
final
Fee:
N/A
Permit Type:
Electrical
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Kropf Mechanical Service Co License info
Verified License
| License # | 7119067 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Kropf Mechanical Service Co 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 # | 3106349 |
| Status | Active |
| State | Michigan |
| Type | Boiler Installer |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Kropf Mechanical Service Co 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 # | 315452 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- 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 Kropf Mechanical Service Co 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 # | 7108458 |
| 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 Kropf Mechanical Service Co 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 # | 315561 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- 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 Kropf Mechanical Service Co 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 # | 7105666 |
| 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 Kropf Mechanical Service Co 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 # | CONT-2942 |
| 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 Kropf Mechanical Service Co at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
163
Permits
- Building permit records show that Kropf Mechanical Service Co has worked on 163 permitted projects.
Kropf Mechanical Service Co Employees
BW
Brian Nelson Williams
DW
David A Williams
JL
James Lee
KC
Kropf Service Co
Owner
RM
Robert May
Owner
RM
Robert D May