J.F. AHERN CO. is a plumbing, heating, and air-conditioning contractors employer in MADISON, WI. Federal records show 1 OSHA inspection with 0 violations and $0 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 1, 2026.
J.F. AHERN CO.
666 WISCONSIN AVE, MADISON, WI, 53703
Parent: J.F. Ahern Co. (34 locations)
238220 — Top companies in Plumbing, Heating, and Air-Conditioning Contractors
EIN: 390123200
15 employees
Industry Benchmark
Data Insights
Inspection Breakdown
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
J.F. AHERN CO. is one of 34 establishments in our dataset that roll up under the parent organization J.F. Ahern Co..
Federal enforcement records on J.F. AHERN CO. represent activity at this specific establishment. The full enforcement footprint of J.F. Ahern Co. across all 34 of its tracked locations is viewable on the parent profile.
Other establishments operated by J.F. Ahern Co.
- J.F. AHERN CO. — ARKANSAW, WI — 2 federal records
- J.F. AHERN CO. — EAU CLAIRE, WI — 2 federal records
- J.F. AHERN CO. — MILWAUKEE, WI — 2 federal records
- J.F. AHERN CO. — KENOSHA, WI — 2 federal records
- J.F. AHERN CO. — MADISON, WI — 1 federal record
- J.F. AHERN CO. — OAK CREEK, WI — 1 federal record
- J.F. AHERN CO. — MILWAUKEE, WI — 1 federal record
- J.F. AHERN CO. — MILWAUKEE, WI — 1 federal record
- J.F. AHERN CO. — MOUNT PLEASANT, WI — 1 federal record
- J.F. AHERN COMPANY — RIVER FALLS, WI — 1 federal record
Other employers in Plumbing, Heating, and Air-Conditioning Contractors within WI
- WIERSGALLA COMPANY, INC. — SPOONER — 2 federal records
- NORTH AMERICAN MECHANICAL INC. — KENOSHA — 2 federal records
- AUGUST WINTER & SONS INC — GREENLEAF — 2 federal records
- NORTH AMERICAN MECHANICAL INC — BLOOMER — 2 federal records
- OLYMPIC WALL SYSTEMS INC — MADISON — 2 federal records
- PGA INC. — WAUSAU — 2 federal records
- AIR TEMPERATURE SERVICES, INC. — OAK CREEK — 2 federal records
- HOOPER CORPORATION — DE FOREST — 2 federal records
- HALVERSON BROS. INC. — EAU CLAIRE — 2 federal records
- JOE DEBELAK PLUMBING & HEATING COMPANY, INC. — NORTH PRAIRIE — 2 federal records
Industry context
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 3 for the plumbing, heating, and air-conditioning contractors sector, with a Days Away, Restricted, or Transferred (DART) rate of 1.7.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 12 years.
Frequently Asked Questions
- What is J.F. AHERN CO.'s OSHA violation history?
- J.F. AHERN CO. has 1 OSHA inspection on record with 0 violations and $0 in total penalties.
- How does J.F. AHERN CO.'s safety record compare to its industry?
- J.F. AHERN CO. operates in the plumbing, heating, and air-conditioning contractors industry. The industry average Total Recordable Incident Rate (TRIR) is 3.
About this data
This profile aggregates federal enforcement records on J.F. AHERN CO. of MADISON, WI from 17 federal data sources. Records were found in 3 sources: OSHA workplace safety inspections, MSHA mine safety enforcement, and BLS industry safety benchmarks. The remaining 14 sources were checked and found no matching records: WHD, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement, SEC facts.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 1, 2026. J.F. AHERN CO. resolves to the parent rollup J.F. Ahern Co., which operates 34 establishments in our dataset.
This profile may be incomplete if J.F. AHERN CO.operates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.