Updated: Feb 10, 2026
Location and Projects
Address
Eaton Rapids, MI, 48827
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Mark Cassius Leyrer HVAC/Mechanical Contractor
Mark Cassius Leyrer, Eaton Rapids, MI (Owned by: Mark Leyrer) holds a Mechanical Contractor license and 1 other license 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 Mark Cassius Leyrer, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mark Cassius Leyrer Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Finishing basement and adding proper bath/hood venting. in basement addition 6 heat runbs addition 6 returns addition vent bathroom fan main floor addition venting for 2 bathroom fans and 1 400 cfm kitchen range hood
Valuation:
N/A
Permit #:
PM25-0106
Status:
suspended
Fee:
$510
Permit Type:
Single family ren...
Building Type:
N/A
Replace forced air system and install supply system to new addition and all parts of house being updated/ward 11-19-07
Valuation:
$0
Permit #:
M350924
Status:
CLOSED
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
Update electrical for new addition and also for areas being renovated to exixting house
Valuation:
$0
Permit #:
E339213
Status:
WEBVOID
Fee:
$166
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M189415
Status:
CLOSED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M190739
Status:
CLOSED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M189323
Status:
CLOSED
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M188876
Status:
CLOSED
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M332990
Status:
CLOSED
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M370156
Status:
FINAL
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
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Mark Cassius Leyrer Reviews
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Verified License
BuildZoom confirmed this contractor's license
Mark Cassius Leyrer License info
Verified License
| License # | 7112010 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Mark Cassius Leyrer 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 # | 7112010 |
| 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 Mark Cassius Leyrer with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
8
Permits
- Building permit records show that Mark Cassius Leyrer has worked on 8 permitted projects.
Mark Cassius Leyrer Employees
ML
Mark Leyrer
Owner
ML
Mark Cassius Leyrer