Looking to build your future in diesel repair? Join a team that values quality work, community, and your growth.

Why Work at GJ’s Service
When you join GJ’s Service, you're stepping into more than just a job — you’re becoming part of a close-knit crew that cares deeply about doing things right. We’re proud of the unmatched quality of work we deliver and the way we support one another every day. Whether you’re just starting out or bringing years of experience, you’ll find a place here where your skills matter and your effort is appreciated.
We handle a wide variety of jobs, from brake repair and maintenance to diagnostics, oil changes, and motor work. You won’t be stuck doing the same task every day — we make sure your work stays interesting and challenging. We serve drivers from all across the region, including Spring Green, Gotham, Madison, and other nearby communities, so you’ll always have something new in the bay.
What Makes Us Different
At GJ’s Service, our difference starts with how we treat people. We care — plain and simple. That applies to every customer who comes through the door and every technician who works in the shop. If you value being respected for the work you do, and if you want to work in a place where coworkers feel more like family, this is where you’ll thrive.
We’re small, but we do things right. With just four technicians on the team, everyone has a chance to contribute and be recognized. You won’t get lost in the shuffle or stuck on repetitive tasks. You’ll be trusted with real responsibility and given the tools and support to do your job well. We also offer a positive, team-first culture that makes work feel like something to look forward to.
Contact Us About Joining the Team Now: Call 608-583-2200!
If you're looking for a long-term career in an environment where hard work and loyalty are valued, give us a call at 608-583-2200. We're always happy to talk to motivated individuals ready to be part of something great.
FAQs
What Areas Do You Serve at GJ’s Service?
We are based at 420 East Forest Street in Lone Rock, WI, near the intersections of East Forest Street and County Road C. Our service area reaches about 50 miles out, which means technicians here support customers from all over the region. That includes towns such as Spring Green, WI; Gotham, WI; Richland County; Iowa County; Sauk County; and surrounding areas.
What Does a Typical Day Look Like for a Technician at Your Shop?
Each day brings a mix of service requests and repair types. You might start the morning handling a diagnostics job and spend the afternoon on a full brake system service or an oil change. The variety helps you grow your experience and ensures your workday stays fresh and engaging.
Do You Offer Training or Support for New Technicians?
Yes, we’re very focused on helping new team members get up to speed. Our experienced technicians are hands-on mentors who take the time to explain not just the “how,” but the “why” behind every task. We also foster a learning environment where questions are encouraged and every day offers a chance to improve.
Ready to Work Somewhere You’re Valued? Let’s Talk.
At GJ’s Service, your skills are more than appreciated — they’re essential. If you’re ready to make a real impact and grow alongside a team that treats you like family, call us today at 608-583-2200. We’d love to hear from you.
Open Positions
We post new positions regularly on our website.
Don't Take our word for it.
Read Customer Testimonials.
"Awesome crew! Had a tire leaking 1 of the mechanics was waiting for me when I got there and went straight to work on it. If I have a problem in that area again I know right where I'm going."
"Nicest friendliest hard-working bunch of folks I ever met. They got me in and out so fast. Highly recommend coming here if you need anything for your trucking business."
"Awesome shop, I'm from out of town and needed help with a check engine light. They got me in right this morning at opening checked it out for. Thanks for the help guys"
Contact Us
Let us know what is going on with your vehicle, and we will get back to you soon with a quote.