Nearly 90% of our Interns rate their experience with us as well above average and 80% of our Interns accept full-time roles after graduation. Why? Because at Ahern, Internships aren’t about making coffee or running errands - they’re about building your future with hands-on experience.
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 a Intern located in Fond du Lac, WI
How you will contribute:
You will be responsible for responding to customer emails and managing customer database information by handling submitted forms, which include updating contacts, notes, billing information, invoice adjustments, and submitting invoices for payments. You will also upload reports to compliance engines and invoices to third-party portals for payment processing. Additionally, you will work on data entry and cleanup projects. Auditing work orders, reviewing, and creating invoices for delivery to customers will also be part of your responsibilities.
What you need to qualify:
The ideal candidate should be pursuing a bachelor’s or associate's degree in business, accounting, or a related field. Candidates should be knowledgeable of MS Word, and Excel and have good computer skills. Candidates should be self-motivated, career-driven, customer service focused and able to grasp information quickly.
What's in it for you?
As an Intern, you are empowered with genuine hands-on work experience, allowing you to make a meaningful impact and contribute to Ahern’s success.
Why complete your Internship at Ahern?
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.

Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and service projects. Founded in 1880, the company has over 1,700 employees servicing commercial and industrial customers across the United States. We partner on new construction or retrofit projects, service existing facilities, and provide prefabricated systems while reducing client risk on projects of all sizes.
Ahern's Core Purpose:
To create and maintain systems that save lives, improve the environment, and ensure personal comfort and well-being.
For additional Company information, please visit jfahern.com.
For information on starting a career with us, please visit aherncareers.com.
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