Mechanical HVAC Service Technician J. F. Ahern Co. United States, Wisconsin, Fond du lac 855 Morris Street (Show on map) Jul 31, 2026 Build Your Future with Ahern Looking for a company that values your skills, respects your contributions, and gives you the tools to thrive? With more than 145 years as a family-owned business, we've built a reputation as one of the best mechanical and fire protection contractors in the country. We pride ourselves on delivering unmatched quality and innovation while providing you with job stability and support. We have an exciting opportunity for aMechanical HVAC Service Technicianlocated in Fond du Lac, WI . Here's what you can expect when you work at

Ahern:

Top-of-the-Line Tools & Technology:

We provide you with cutting-edge, new tools to help you excel

Safety First:

Your well-being is our top priority. We're committed to ensuring every employee leaves work as healthy as they arrived

Exceptional Work Environment:

You'll work on exciting, hands-on projects that make a real difference - saving lives, protecting the environment, and ensuring personal comfort and well-being

Perks You Can See:

As you progress in your career, field employees receive personalized, regularly upgraded Ahern vehicles(with your name on them!). This is just one of the many perks you have to look forward to How will you contribute? Ahern is seeking a Mechanical HVAC Service Technician to fulfill service work with customers in the Fond du Lac and surrounding areas. In this role, you will troubleshoot HVAC equipment issues, conduct preventative maintenance on chillers, rooftop units, air handling units, hot water pumps, boilers, burners, and perform combustion tuning. Be on a rotating on-call schedule. In this role, you will service a wide variety of industries, including heavy industrial, commercial, schools, healthcare, and food plants. Your employment relationship will be governed by a collective bargaining agreement. This is an excellent opportunity to showcase your exceptional customer service skills while actively engaging with Ahern's service customers. What you need to qualify? Qualified candidates must be a Mechanical HVAC Service Technician with 5+ years of experience, ideally working on owner-direct service work. The position requires a candidate to have a universal Refrigerant certification. Must have a clean driving record to operate company vehicles, be able to travel for the position, and pass an appropriate drug screen and physical (the job entails a great deal of lifting and climbing). Successful candidates must be self-starters, have a strong mechanical background, have a good working and learning attitude, and be able to work in a fast-paced construction environment (both indoors and outdoors). By joining Ahern, you'll gain the stability of a company that's been a leader in the industry since 1880, the pride of doing meaningful work, and the support of a team dedicated to your success. Don't settle for just any job - experience what it's like to work for the best! Ahern is an Equal Opportunity Employer and is committed to providing a workplace free from discrimination and harassment.