How do employees rate J. F. Ahern?

Employees rate J. F. Ahern 4.5 out of 5 stars based on 194 anonymous reviews on Glassdoor.

How can I get a job at J. F. Ahern?

To get a job at J. F. Ahern, browse currently open positions and apply for a job near you. Once you get a positive response, make sure to find out about the interview process at J. F. Ahern and prepare for tough questions.

Do people recommend working at J. F. Ahern?

Overall, 89% of employees would recommend working at J. F. Ahern to a friend. This is based on 194 anonymously submitted reviews on Glassdoor.

How do job seekers rate their interview experience at J. F. Ahern?

92% of job seekers rate their interview experience at J. F. Ahern as positive. Candidates give an average difficulty score of 2.8 out of 5 (where 5 is the highest level of difficulty) for their job interview at J. F. Ahern.

How do employees rate the business outlook for J. F. Ahern?

93% of employees think that J. F. Ahern has a positive business outlook . This is based on anonymous employee reviews submitted on Glassdoor.

Working at J. F. Ahern

J. F. Ahern Snapshot

4.5

based on 193 ratings

89% would recommend to a friend

Tripp Ahern III

93% approve of CEO

16 OfficesLocations

Mission We create and maintain systems that save lives, improve the environment, and ensure personal comfort and well-being.

Description With 16 office locations and over 1,700 employees, we provide expertise in mechanical contracting, fire protection services, pipe fabrication, and water treatment. Working across industries and systems, we are helping create and maintain essential infrastructure.

Our continuing expansion and diversification mean we now offer an exciting and wide range of careers for experienced professionals and those starting their careers. It’s a chance for new members of the team to power our future.

Life at J. F. Ahern

Company updates

J. F. Ahern

2mo

Last week’s Women in Construction Week gave us an opportunity to celebrate, learn, and recognize the women helping shape our industry. At Ahern, that commitment goes far beyond one week on the calendar. Throughout the year, our Women in Construction efforts focus on creating opportunities for connection, growth, and belonging across our company through networking, professional development, hands-on experiences, and mentorship. We’re proud that women make up 14% of Ahern’s workforce, ahead of the 11% national average. At the same time, women remain underrepresented in shop and field roles across the industry, reinforcing why this work matters. We are committed to helping close that gap by expanding awareness of careers in construction, investing in recruitment, and building pathways for women to grow and lead. From our youth apprenticeship program to participation in events like Women in the Trades open houses, we’re working year-round to introduce more women to meaningful careers in the trades. The future of construction depends on attracting and supporting strong talent from every background, and we’re proud to be part of that progress....Show more

Last week’s Women in Construction Week gave us an opportunity to celebrate, learn, and recognize the women helping shape our industry. At Ahern, that commitment goes far beyond one week on the calendar. Throughout the year, our Women in Construction efforts focus on creating opportunities for connection, growth, and belonging across our company through networking, professional development, hands-on experiences, and mentorship. We’re proud that women make up 14% of Ahern’s workforce, ahead of the 11% national average. At the same time, women remain underrepresented in shop and field roles across the industry, reinforcing why this work matters. We are committed to helping close that gap by expanding awareness of careers in construction, investing in recruitment, and building pathways for women to grow and lead. From our youth apprenticeship program to participation in events like Women in the Trades open houses, we’re working year-round to introduce more women to meaningful careers in the trades. The future of construction depends on attracting and supporting strong talent from every background, and we’re proud to be part of that progress.

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J. F. Ahern

5mo

Happy New Year! 🎉 We hope 2026 is off to a strong start for you and your family, filled with good health, big goals, and plenty of moments worth celebrating. As we begin the year, we’re taking a minute to recognize what makes Ahern special: the people behind the work and the families who support them every day. To kick off 2026, we invited the children of Ahern employees to help celebrate Ahern by contributing artwork for our annual calendar design, and they delivered in a big way! Take a look at these fantastic submissions that show what Ahern means to them....Show more

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2026 Kids Calendar Drawings

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J. F. Ahern

7mo

After years of planning and collaboration, our Madison team is now thriving in a custom-built, 60,000 sq. ft. facility designed to support growth, innovation, and an exceptional work experience. From layout to finishes, every detail was thoughtfully chosen to showcase the pride we take in our craft, the excellence of our people, and the safe, modern environment they work in every day. Check out the video to see how this space was built with purpose, supporting training, collaboration, and cutting-edge work, and how it reflects the future we’re building together. Want to be part of it and grow your career with us? Explore our open positions: https://www.jfahern.com/careers...Show more

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Ahern's New Madison Office

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J. F. Ahern

9mo

This year, Ahern marked an incredible milestone: 145 years of excellence. We celebrated in true Ahern style! Our anniversary event reflected the people who make this company great: our employees and their families. From inflatable obstacle courses and a mechanical shark to casino tables and live music, we pulled out all the stops to honor our legacy and look ahead to the future. Here’s to 145 years of building something great, and many more to come....Show more

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Celebrating 145 Years

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Photos

J. F. Ahern photo of: An Ahern Fire Sprinkler system saved a Goodwill store in Saint Paul, Minnesota after several arson fires were lit inside the building and in the loading dock area.

J. F. Ahern awards and accolades

New North Workplace Excellence Award, New North and Right Management, 2022
AGC BUILD Wisconsin Award, Associated General Contractors of Wisconsin, 2021

Jobs at J. F. Ahern

Fire Systems Technician (Fire Alarm/Special Hazards Technician)

Fire Sprinkler Designer

Sprinkler Fitter Apprentice

Rochester, MN

View job

Employee reviews at J. F. Ahern

J. F. Ahern has an employee rating of 4.5 out of 5 stars, based on 193 company reviews on Glassdoor which indicates that most employees have an excellent working experience there. The J. F. Ahern employee rating is 22% above average for employers within the Construction, repair and maintenance industry (3.7 stars).

Ratings by category

4.5

Culture and values

4.4

Career opportunities

4.3

Senior management

4.3

Compensation and benefits

4.2

Diversity and inclusion

4.2

Work/Life balance

Employee reviews

Construction salesCurrent employee

5.0

Great Company To Work For

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J. F. Ahern

J. F. Ahern Snapshot