Updated: Feb 17, 2026
Location
Address
Ontonagon, MI, 49953
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Up North Heating Systems
Up North Heating Systems, Ontonagon, MI (Owned by: Alan Mladenoff) holds a Mechanical Contractor license and 3 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 Up North Heating Systems, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Up North Heating Systems Contact Information
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Verified License
BuildZoom confirmed this contractor's license
Up North Heating Systems License info
Verified License
| License # | 7102031 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Up North Heating Systems 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 # | 7102031 |
| 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 Up North Heating Systems 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 # | 314580 |
| 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 Up North Heating Systems 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 # | 314580 |
| 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 Up North Heating Systems 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
Up North Heating Systems Employees
AM
Alan Mladenoff
Owner
AM
Alan D Mladenoff
MD
Mladenoff Alan D