Updated: Nov 25, 2025
Location and Projects
Address
3489 Burbank Dr., Ann Arbor, MI, 48103
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Knox HVAC/Mechanical Contractor
Knox Inc, 3489 Burbank Dr, Ann Arbor, MI (Owned by: Knox, Darren Robert) holds a Mechanical Contractor license and 5 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 Knox Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Knox Inc Contact Information
Phone Number: (734) 222-4178
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Address: 3489 Burbank Dr., Ann Arbor, MI 48103
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace hot water heater
Valuation:
N/A
Permit #:
P25-0261M
Status:
final
Fee:
$100
Permit Type:
Water heater
Building Type:
N/A
Gas water heater replaced
Valuation:
N/A
Permit #:
PM22-0760
Status:
issued
Fee:
$96
Permit Type:
Add/alter/repair
Building Type:
N/A
Moving cold air return and reconnecting 2 heat runs
Valuation:
N/A
Permit #:
MECH21-2201
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Heat run to new bathroom and provide exhaust
Valuation:
N/A
Permit #:
MECHR22-2908
Status:
final
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
MECH18-3482
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
MECH18-3481
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
1996 international w/state of michigan part 9a ordinance 100misc.1 residential air conditionercall for final inspection at same time as electrical stop: no items: 1 review: no cert: no info: 1996 international w/state of michigan part 9a ordinance 100 frig: yes item: n/a public or private: private comments: 1 residential air conditioner
Valuation:
N/A
Permit #:
P00-2942
Status:
final
Fee:
N/A
Permit Type:
Mech/refrigeration
Building Type:
N/A
1996 international w/state of michigan part 9a ordinance 100remodel or alteration2 rough 1 final 1 gaslineaddition stop: no items: 4 review: no cert: no info: 1996 international w/state of michigan part 9a ordinance 100 frig: no item: n/a public or private: private comments: 2 rough 1 final 1 gasline comments1: addition
Valuation:
N/A
Permit #:
P00-2941
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Complete venting on hot h20 tank
Valuation:
N/A
Permit #:
MECH16-1152
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
MECH21-3219
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
MECH21-3220
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Invisible fence
Valuation:
N/A
Permit #:
PORD13-0041
Status:
final
Fee:
$150
Permit Type:
Ord invisible fence
Building Type:
N/A
Replace furnace & water heater
Valuation:
N/A
Permit #:
PM18-0179
Status:
final
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
1996 international w/state of michigan part 9a ordinance 100new1 gasline/gpt 1 rough 1 finalnew construction of 1 story house
Valuation:
N/A
Permit #:
P01-1186
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PM15-0795
Status:
final
Fee:
$411
Permit Type:
Add/alter/repair
Building Type:
N/A
1996 international w/state of michigan part 9a ordinance 100misc.1 residential air conditionernew construction
Valuation:
N/A
Permit #:
P01-1187
Status:
final
Fee:
N/A
Permit Type:
Mech/refrigeration
Building Type:
N/A
Complete venting on hot h20 tank
Valuation:
N/A
Permit #:
MECH16-1152
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Gas line
Valuation:
N/A
Permit #:
MECH17-3126
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Replace furnace (permit issued same day as air conditioning 11-19-02, same check used-date changed from 8-20-02)
Valuation:
N/A
Permit #:
PM02-3252
Status:
final
Fee:
$35
Permit Type:
Mechanical
Building Type:
N/A
3331/3333 platt - 2 furnace 2 air conditioning & 2 hwh
Valuation:
N/A
Permit #:
MECH08-0825
Status:
final
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
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Knox Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Knox Inc License info
Verified License
| License # | 7112847 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Knox Inc 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 # | 7112847 |
| 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 Knox Inc 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 # | LIC-4871 |
| 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 Knox Inc at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-1698 |
| 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 Knox Inc at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LIC-1699 |
| 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 Knox Inc at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CONT-3331 |
| 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 Knox Inc 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
36
Permits
- Building permit records show that Knox Inc has worked on 36 permitted projects.
Knox Inc Employees
DK
Darren Knox
Owner
DK
Darren Robert Knox
KD
Knox Darren
Owner
KR
Knox, Darren Robert
Owner
KI
Knox, Inc
Contractor
MS
Michael P Mc Carthy Paint & Srv
Contractor