Updated: Mar 10, 2026
Location and Projects
Address
515 Keech Ave., Ann Arbor, MI, 48103
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Neff Mechanical
Neff Mechanical, 515 Keech Ave, Ann Arbor, MI (Employees: Neff Timothy Robert and Timothy Neff) holds a Mechanical Contractor license and 9 other licenses according to the Michigan license board.
Their BuildZoom score of 109 ranks in the top 5% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Neff Mechanical, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Neff Mechanical Contact Information
Phone Number: (734) 320-5528
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Address: 515 Keech Ave., Ann Arbor, MI 48103
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Neff Mechanical Ann Arbor
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Neff Mechanical has a BuildZoom score of 109, which places them above 95% of 167,179 contractors in Michigan.
Activity
|
95 projects
|
2025 |
|
58 projects
|
2024 |
|
83 projects
|
2023 |
Our building permit records indicate that Neff Mechanical has worked on at least
236.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
15 projects
|
Home Additions |
|
32 projects
|
HVAC projects |
|
21 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Neff Mechanical mostly works on
hvac project
and mechanical project
projects.
Pricing
|
6 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
8 projects
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Neff Mechanical Reviews
5 out of 5 stars, based on
1
review
-
By Thomas E.October 3, 2024Clear short in D/W circuit
This is a sample of this contractor's permits. Click here to access their complete permit history.
Electrical (residential) - solar panel - roof mounted [expedited]
2025-04-13
Installing 5.6kw roof mount array 2 10kwh batteries upgraded inverter backup interface service disconnect 60a subpanel in garage at existing 5.56kw roof mount system
Valuation:
N/A
Permit #:
ELECR25-0688
Status:
final
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
Install electrical for 2 roof solar arrays 8.1 kw systems with 20 405w panels 7.6 kw inverter and power optimizers. installing 20 roof mounted solar panels grid tied 8.1 kw on a single family dwelling. electrical requirements; 1). rapid shutdown or disconnecting means at solar array with external handle. 2). group mains to shut down all premises power. 3). no insulation piercing conne... see more
Valuation:
N/A
Permit #:
PELE2022-00448
Status:
final
Fee:
$65
Permit Type:
Addition
Building Type:
N/A
Convert overhead service to 320 amp underground service. addition 200 amp panel
Valuation:
N/A
Permit #:
ELECR25-1214
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
1st floor bathroom: demolish 1/2 bathroom and convert to full bathroom. upstairs bathroom: complete remodel using existing layout
Valuation:
$52,000
Permit #:
BLDGR23-0498
Status:
final
Fee:
$796
Permit Type:
N/A
Building Type:
N/A
186.76 kw roof mount array
Valuation:
$244,000
Permit #:
BLDGC23-0055
Status:
expired
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-09-12
Installation of 4.84kw of solar tesla 11.5kw inverter/13.5kw battery
Valuation:
N/A
Permit #:
ELECR25-1359
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-08-27
Adding 14 440w roof mount panels to an existing 5.52kw roof mount system
Valuation:
N/A
Permit #:
ELECR25-1350
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-07-11
6.6kw roof mount array 6.0kw inverter addition of 100a service panel
Valuation:
N/A
Permit #:
ELECR25-1239
Status:
final
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Ev charger to be installed with energy storage system (elecr25-0209)
Valuation:
N/A
Permit #:
ELECR25-0377
Status:
final
Fee:
$85
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-02-16
Addition of 2.0kw array and 2 10kwh batteries at existing solar site
Valuation:
N/A
Permit #:
ELECR24-4035
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2022-10-06
Adding 6.4kw array to existing 6.67 kw array **voided-wrong workclass. see elecc22-2438.** removing existing inverter and adding 2 10kw inverters and 2 16kwh batteries with backup interface
Valuation:
$0
Permit #:
ELECR22-3956
Status:
voided
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-08-18
6.6kw roof mount array 6kw solaredge inverter service panel upgrade
Valuation:
N/A
Permit #:
ELECR25-1452
Status:
final
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-10-17
Installing photovoltaic system and battery storage at home - new building reference bldgr25-1050 permit please
Valuation:
N/A
Permit #:
ELECR25-2607
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Install mini split heat pump system
Valuation:
N/A
Permit #:
MECHR25-1152
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Moving existing solar battery from basement to detached garage and adding an addition battery to system
Valuation:
N/A
Permit #:
PE25-001240
Status:
issued
Fee:
$295
Permit Type:
Electrical other
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-09-14
Installing photovoltaic and tesla powerwall 3 at home
Valuation:
N/A
Permit #:
ELECR25-1509
Status:
final
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-09-27
7.92kw of roof mount solar 18 440w panels 10kw inverter
Valuation:
N/A
Permit #:
ELECR25-1449
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-09-13
13.2 kw roof mount array 11.5kw inverter/battery system
Valuation:
N/A
Permit #:
ELECR25-1326
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Addition lights in three bathrooms. replace bathroom fan
Valuation:
N/A
Permit #:
ELECR25-1210
Status:
final
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
Electrical (residential) - solar panel - roof mounted [expedited]
2025-05-23
12.76kw roof mount solar 11.4kw inverter 2 - batteries
Valuation:
N/A
Permit #:
ELECR25-0743
Status:
final
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Neff Mechanical License info
Verified License
| License # | 7110415 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Neff Mechanical 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 # | 6108312 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Neff Mechanical 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 # | 6210159 |
| Status | Active |
| State | Michigan |
| Type | Electrical |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Neff Mechanical 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 # | 7110415 |
| 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 Neff Mechanical with 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 # | 6210159 |
| Status | Active |
| State | Michigan |
| Type | Electrical |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Neff Mechanical with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 6108312 |
| Status | Active |
| State | Michigan |
| Type | Electrical Contractor |
- BuildZoom has not verified this license since December, 2024.
Verify this license's status for Neff Mechanical 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-3810 |
| 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 Neff Mechanical 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-2981 |
| 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 Neff Mechanical 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-1947 |
| 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 Neff Mechanical 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-1784 |
| 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 Neff Mechanical at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
1.1K
Permits
- Building permit records show that Neff Mechanical has worked on 1130 permitted projects.
Neff Mechanical Employees
NM
Neff Mechanical
Owner
NR
Neff Timothy Robert
Contractor
TN
Timothy Neff
Owner
TN
Timothy Neff
TN
Timothy R Neff
They know what they are doing and ways to save you $. Very friendly, & helpful