Updated: Sep 23, 2025
Location and Projects
Address
Ypsilanti, MI, 48198
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Hamm JG Construction
Their BuildZoom score of 92 ranks in the top 32% of 167,179 Michigan licensed contractors.
If you are thinking of hiring Hamm JG, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Hamm JG Services
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Hamm JG Contact Information
Phone Number: (734) 482-4335
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Hamm JG Ypsilanti
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Hamm JG has a BuildZoom score of 92, which places them above 68% of 167,179 contractors in Michigan.
Activity
|
1 project
|
2025 |
Our building permit records indicate that Hamm JG has worked on at least
1.0 project over the past year.
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.
Pricing
|
1 project
|
$5k-$20k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition electrical sub-panel in backyard with gfci breakers for swimming pool pump natural gas pool heater and salt generator. addition (mwbc) branch circuit in pvc conduit to support sub-panel from main panel. addition pool equipotential bonding grid fto all pool related equipment
Valuation:
N/A
Permit #:
PE25-001448
Status:
final
Fee:
$70
Permit Type:
Electrical other
Building Type:
N/A
Addition gas piping for above ground swimming pool heater located in backyard ~83 from gas meter
Valuation:
N/A
Permit #:
PM25-001120
Status:
final
Fee:
$70
Permit Type:
Gas piping
Building Type:
N/A
Install a new 15 x 26 oval above ground swimming pool
Valuation:
$15,000
Permit #:
PB25-01306
Status:
issued
Fee:
$222
Permit Type:
Pool-spa
Building Type:
N/A
Construct a 12 x 20 deck on side of home as per specs and plans submitted and approved
Valuation:
$3,120
Permit #:
PB08-0327
Status:
final
Fee:
$66
Permit Type:
Deck
Building Type:
N/A
Misc. repairs in units basement wall leaks electrical work
Valuation:
$5,883
Permit #:
BLDG11-1974
Status:
final
Fee:
N/A
Permit Type:
Residence add/alter
Building Type:
N/A
Misc. repairs in units basement wall leaks electrical work
Valuation:
$5,883
Permit #:
BLDG11-1975
Status:
final
Fee:
N/A
Permit Type:
Residence add/alter
Building Type:
N/A
Misc. repairs in units basement wall leaks electrical work
Valuation:
$5,883
Permit #:
BLDG11-1976
Status:
final
Fee:
N/A
Permit Type:
Residence add/alter
Building Type:
N/A
Construct a 4 x 36 handicap ramp with a 4 x 6 landing as per specs and plans submitted and approved
Valuation:
$2,360
Permit #:
PB08-0326
Status:
final
Fee:
$89
Permit Type:
Misc
Building Type:
N/A
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Hamm JG Reviews
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Hamm JG License info
License Not Verified
| License # | CONT-2101122861 |
| Status | Active |
| City | Ann Arbor |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Hamm JG with the The City of Ann Arbor, MI
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2101122861 |
| Status | Active |
| State | Michigan |
| Type | Residential Builder Individual |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of Hamm JG 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 # | 2101122861 |
| Status | Active |
| State | Michigan |
| Type | Residential Builder Individual |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of Hamm JG 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 # | LIC-2101122861 |
| 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 Hamm JG at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Hamm JG Employees
HG
Hamm, John Gregory
Owner