Updated: Nov 11, 2025
Location and Projects
Address
Rochester Hills, MI, 48309
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Block, Jon W Architect
Their BuildZoom score of 0 does not rank in the top 50% of Michigan contractors.
If you are thinking of hiring Block, Jon W, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Block, Jon W Services
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Block, Jon W Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Lennox furnace 75, 000 btu & remote air conditioning
Valuation:
N/A
Permit #:
PM990258
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Air conditioning and furnace
Valuation:
N/A
Permit #:
PM000490
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Furnace and air conditioning
Valuation:
N/A
Permit #:
PM000403
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PM990104
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
PM98-0285
Status:
FINALED
Fee:
$55
Permit Type:
Other
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
M246685
Status:
FINAL
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$0
Permit #:
RP996208
Status:
CLOSED
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
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License # CONT-54118
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BZ Score
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Projects
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Projects
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Block, Jon W License info
License Not Verified
| License # | 1301027010 |
| Status | Active |
| State | Michigan |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of October, 2012. Check the current license status of Block, Jon W 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 # | 7100089 |
| 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 Block, Jon W 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 # | 313809 |
| 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 Block, Jon W 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 # | 7100089 |
| 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 Block, Jon W 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 # | 313809 |
| 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 Block, Jon W 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 # | 1301027010 |
| Status | Inactive |
| State | Michigan |
| Type | Architect |
- 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 Block, Jon W at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Block, Jon W, click “This is My Business” to update your information.
7
Permits
- Building permit records show that Block, Jon W has worked on 7 permitted projects.
Block, Jon W Employees
HW
Herzfeld Jon W
JH
Jon Herzfeld
Owner
JH
Jon W Herzfeld