Updated: May 03, 2026
Location and Projects
Headquarters Address
1232 N EDISON STREET, Milwaukee, WI, 53202
Local address
P O P.O. Box 1316, Fond Du Lac, WI, 54935
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Jf Ahern Plumber
Jf Ahern Co, P, Po Box 1316, Fond Du Lac, CA (Employees: Alan Roy Fox, David Mc Intosh Ahern, and Frederick Mathew Fleury) holds a Fire Protection license and 1 other license according to the California license board.
Their BuildZoom score of 102 ranks in the top 11% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Jf Ahern Co, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Jf Ahern Co Services
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Jf Ahern Co Contact Information
Phone Number: (920) 921-9020
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Headquarters Address: 1232 N EDISON STREET, Milwaukee, WI, 53202
Local Address: P O P.O. Box 1316, Fond Du Lac, CA 54935
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Jf Ahern Co Fond Du Lac
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Jf Ahern Co has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
Our building permit records indicate that Jf Ahern Co has worked on at least
3.0 projects over the past 2 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.
Pricing
|
1 project
|
$1mil+ |
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.
5 double interlock preaction quell system in freezer 1 dry automatic sprinkler system in dock/office systems supplied by existing pump and tank for us cold storage
Valuation:
$5,422,585
Permit #:
BLD-24-30034
Status:
issued
Fee:
$635
Permit Type:
N/A
Building Type:
N/A
4 double interlock preaction systems protecting the overhead roof of warehouse 12 with 3 separate in-rack sprinkler systems that will be balanced with the overhead. systems will protect storage class 111 up to 59'-4 with a ceiling height of 67'-6 at the peak of the building for us cold storage
Valuation:
N/A
Permit #:
BLD-24-30459
Status:
issued
Fee:
$3,388
Permit Type:
N/A
Building Type:
N/A
Safeway - fs tenant improvement (15) penthouses/no coc required
Valuation:
N/A
Permit #:
FC25-0007
Status:
issued
Fee:
N/A
Permit Type:
Fire sprinklers
Building Type:
N/A
Fpfss2003286 20-jurv-2182 we are installing a total of 5 fire protection systems with a new diesel fire pump. 4 dbl interlock preaction quell systems and 1 wet system
Valuation:
N/A
Permit #:
FPFSS2003286
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(2) wet automatic sprinkler systems - platform systems
Valuation:
N/A
Permit #:
FC25-0042
Status:
issued
Fee:
$1,298
Permit Type:
Fire sprinklers
Building Type:
N/A
Safeway tenant improvement. - 19 heads office/16 heads breakroom/restroom
Valuation:
N/A
Permit #:
FC22-0079
Status:
final
Fee:
$2,813
Permit Type:
Fire sprinklers
Building Type:
N/A
Fire sprinkler tenant improvement
Valuation:
N/A
Permit #:
FC24-0080
Status:
issued
Fee:
$2,078
Permit Type:
Fire sprinklers
Building Type:
N/A
Safeway - fire sprinkler mezzanine
Valuation:
N/A
Permit #:
FC24-0012
Status:
issued
Fee:
$1,706
Permit Type:
Fire sprinklers
Building Type:
N/A
Fpfss2102181- 20-jurv-2182 fire pump & fuel tank only
Valuation:
N/A
Permit #:
FPFSS2102181
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Safeway - f/s demolish
Valuation:
N/A
Permit #:
FC24-0081
Status:
issued
Fee:
$792
Permit Type:
Fire sprinklers
Building Type:
N/A
Safeway - rack modification
Valuation:
N/A
Permit #:
FC22-0138
Status:
final
Fee:
$2,032
Permit Type:
Fire sprinklers
Building Type:
N/A
Safeway - afs hbw in rack
Valuation:
N/A
Permit #:
FC23-0022
Status:
final
Fee:
$5,644
Permit Type:
Fire sprinklers
Building Type:
N/A
Safeway fire sprinkler shell
Valuation:
N/A
Permit #:
FC23-0018
Status:
final
Fee:
$9,157
Permit Type:
Fire sprinklers
Building Type:
N/A
Edr-new sprinkler system in low bay ges warehouse per fm hc-3. (2) floors and shipping mezzanine remodel in adjacent east warehouse. detailed description:ahern fire protection is installing fire protection in the low bay as a hazard class 3 per fm data sheet 2-0. we are providing fire protection beneath the proposed mezzanine in the low bay in accordance with fm standards. we are prov... see more
Valuation:
N/A
Permit #:
PMT2016-00452
Status:
final
Fee:
$1,076
Permit Type:
N/A
Building Type:
N/A
Tenant improvment to install new fire sprinkler system in new single story with mezzanine building. existing 8-inch fire service line. rp device not required. modify approved plans. addition seismic sway bracing detail. plan check only. permit issued 14043-20000-04668
Valuation:
$0
Permit #:
14043-20001-04668
Status:
Submitted
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvment to install new fire sprinkler system in new single story with mezzanine building. existing 8-inch fire service line. modify approved plans. change lines in banana room. plan check only. permit issued under 14043-20000-04668
Valuation:
$0
Permit #:
14043-20002-04668
Status:
Submitted
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Fire sprinkler systems fire pump and water storage tank for united states cold storage
Valuation:
$1,622,151
Permit #:
BLD-22-23397
Status:
final
Fee:
$1,389
Permit Type:
N/A
Building Type:
N/A
Relocate 3 main and (4) heads in adjacent rooms (new fire suppression chemical system to be installed in lan room under a separate permit (frito lay)
Valuation:
N/A
Permit #:
PMT2015-05878
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
N/A
Installation of ecaro25 clean agent suppression system in new lan room - frito lay (wet sprinkler system alterations under separate permit)
Valuation:
N/A
Permit #:
PMT2015-05795
Status:
withdrawn
Fee:
$226
Permit Type:
N/A
Building Type:
N/A
Fsprklr-mod existing fire sprinkler system to be removed and new esfr sprinkler and quell preaction system to be installed
Valuation:
$700,000
Permit #:
F15-000-378
Status:
final
Fee:
$1,923
Permit Type:
Mixed use
Building Type:
N/A
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BZ Score
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BZ Score
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Avg Project
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Projects
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BZ Score
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Projects
Jf Ahern Co Reviews
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Verified License
BuildZoom confirmed this contractor's license
Jf Ahern Co License info
Verified License
| License # | 865371 |
| Status | Active |
| State | California |
| Type | Fire Protection |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Jf Ahern Co at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 455951 |
| Status | Inactive |
| State | California |
| Type | General Engineering, General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, 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 Jf Ahern Co at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Zurich American Insurance Company |
7
Permits
- Building permit records show that Jf Ahern Co has worked on 7 permitted projects.
Jf Ahern Co Employees
AF
Alan Roy Fox
Officer
DA
David Mc Intosh Ahern
Rmo
FF
Frederick Mathew Fleury
Officer
GW
Glenn Robert Warga
Rme
HH
Herbert Louis Herro
Officer
JD
James Hubert Dhein
Officer
JI
John E Ahern III
Ceo / President
JA
John Edward Ahern
Ceo / President
NS
Norbert James Schmidt
Officer
VF
Van F Fitch
Rme