Updated: May 26, 2026
Location and Projects
Address
17227 O'Connor, Allen Park, MI, 48101
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Principal Plumbing
Principal Plumbing, 17227 Oconnor, Allen Park, MI (Owned by: Christopher Halash) holds a Plumbing Contractor license and 3 other licenses according to the Michigan license board.
Their BuildZoom score of 92 ranks in the top 32% of 167,179 Michigan licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Principal Plumbing, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Principal Plumbing Services
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Principal Plumbing Contact Information
Phone Number: (313) 565-4439
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Address: 17227 O'Connor, Allen Park, MI 48101
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Rough and final plumbing for new 1-story house on slab
Valuation:
N/A
Permit #:
PR24-0098
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water ines to copper thru out house
Valuation:
N/A
Permit #:
PP19-0189
Status:
final
Fee:
$115
Permit Type:
plumbing
Building Type:
N/A
6 sewere repair in yard
Valuation:
N/A
Permit #:
PP18-0064
Status:
final
Fee:
$210
Permit Type:
plumbing
Building Type:
N/A
40 gallow water heater
Valuation:
N/A
Permit #:
PP18-0066
Status:
final
Fee:
$115
Permit Type:
plumbing
Building Type:
N/A
Install water heater
Valuation:
N/A
Permit #:
PP18-0065
Status:
final
Fee:
$115
Permit Type:
plumbing
Building Type:
N/A
Plumbing to install back- flow preventer
Valuation:
N/A
Permit #:
P22P0024
Status:
expired
Fee:
$55
Permit Type:
plumbing
Building Type:
N/A
Replace backflow device on sprinkler system
Valuation:
$0
Permit #:
PP1500262
Status:
FINALED
Fee:
$110
Permit Type:
plumbing
Building Type:
N/A
Water dist sink toilet dishwasher disposal
Valuation:
N/A
Permit #:
PLMB12-328-00
Status:
final
Fee:
$70
Permit Type:
Additions & altera
Building Type:
N/A
Backflow device
Valuation:
$0
Permit #:
PP1600143
Status:
FINALED
Fee:
$110
Permit Type:
Backflow
Building Type:
N/A
Backflow device
Valuation:
$0
Permit #:
PP1600142
Status:
FINALED
Fee:
$111
Permit Type:
Backflow
Building Type:
N/A
Replace sewer in backyard 70-80 ft
Valuation:
N/A
Permit #:
PLMB13-813-00
Status:
final
Fee:
$176
Permit Type:
Sewer application
Building Type:
N/A
Replace 2 drains (kitchen & bathtub)
Valuation:
N/A
Permit #:
PP14-0151
Status:
final
Fee:
$110
Permit Type:
plumbing
Building Type:
N/A
Install sprinkler system (pvb - install back flow preventor)
Valuation:
N/A
Permit #:
PP13-0230
Status:
final
Fee:
$60
Permit Type:
plumbing
Building Type:
N/A
Violation city certs
Valuation:
N/A
Permit #:
PLMB12-327-00
Status:
final
Fee:
$48
Permit Type:
Additions & altera
Building Type:
N/A
Plumbing for rehab job -- water heater hose spicket w/vacuum breaker; laundry room wall box and venting
Valuation:
$0
Permit #:
PP1000077
Status:
FINALED
Fee:
$133
Permit Type:
plumbing
Building Type:
N/A
Dishwasher food waste grinder laundry tray sink water closet water heater; water dist 3/4
Valuation:
N/A
Permit #:
PP140094
Status:
final
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Sewer repair. bond for un-paved alley bond refunded 5-4-16 receipt #9526
Valuation:
N/A
Permit #:
PPLMB16-0071
Status:
final
Fee:
$110
Permit Type:
Sewer
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PP14-0133
Status:
final
Fee:
$165
Permit Type:
plumbing
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PP14-0088
Status:
final
Fee:
$100
Permit Type:
plumbing
Building Type:
N/A
Install 1 pressure vaccum breaker-- call for inspection when work is complete
Valuation:
N/A
Permit #:
PP01-0440
Status:
final
Fee:
$35
Permit Type:
plumbing
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Principal Plumbing License info
Verified License
| License # | 8000303 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Principal Plumbing 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 # | CONT-3725 |
| 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 Principal Plumbing 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 # | 8000303 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Principal Plumbing 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-0654 |
| 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 Principal Plumbing 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
107
Permits
- Building permit records show that Principal Plumbing has worked on 107 permitted projects.
Principal Plumbing Employees
CH
Christopher Halash
Owner
CH
Christopher J Halash
PP
Principal Plumbing
Owner