We are Quality. Affordability. ACE.

Who We Are

Ace Truck Body & Trailer Repair, Inc.'s motto, "You Had A Choice And You Chose Us," has led us through 34 years of growth and success as a full-service operation specializing in body and engine repair and painting of tractor-trailer and medium-size trucks, as well as mobile units to provide on-site repairs.

Al Karnitz Since Al Karnitz, our Founder, opened the doors to our company on August 11, 1981, the company has grown from four employees to more than 38 employees, and work out of our 33,000 square-foot custom-built repair facility, located just three miles from its original location. Over time, the company has become a successful, seven-figure, family-run business. Al's eldest son, Guy Karnitz, is operating as the General Manager. Son, Allan Karnitz, is in charge of Outside Estimating and Public Relations. Continuing through the generations, grandson Devon Karnitz, now works as an Estimator.

For the 32 years that Ace Truck Body & Repair, Inc. has been in business, they have not only contributed to Gwinnett's economy, they have also given back to the community through leadership roles held by Karnitz including serving as the secretary of the South Gwinnett Rotary and serving as the South Gwinnett Rotary's president for the 2007-2008 term. Ace Truck Body & Repair is also a longtime member of the Norcross Business Association.

What We Do

We promise to deliver exceptional service and quality work at an affordable price. We are a locally owned, full-service truck and trailer service operation specializing in engine and body repair and painting of tractor-trailer and medium-size trucks. In addition, we provide mobile units to provide on-site repairs, as well as expedited service if time is of the essence.

Team Our specialties include the following Services:

  • Engine Repair
  • Paint & Body Work
  • Trailer Repair
  • Mobile Dispatch Service
  • Expedited Service

Our team of professionals will provide quality work with reasonable turn-around time so that your truck or trailer can get back on the road. We strive to keep your costs as low as possible. We manage the entire process with precision. At Ace Truck Body & Trailer Repair we promise a hassle-free experience.

Our strong company background, and both established and continually growing customer base has provided the company with stability and growth for its 34-year life span. Our customer base consists of truck rental, long distance moving van lines, local movers, Pepsi, Frito Lay, Eagle Rock Budweiser, Ryder, Enterprise, First Lease, INL Truck Leasing, BellSouth and numerous other small truck companies.

Customer Support

Our entire team, including the management, mechanics, technicians, and all support staff will try to make your experience with ACE an enjoyable experience, whether you're buying parts or refurbishing your truck, trailer or entire fleet. Contact us to find out first-hand.


Don't just take it from us... Hear what a few of our clients say about our professionalism, competitive pricing, and superior customer service. You may even find out what former employees think of the way we do business.


We're located in beautiful Norcross, Georgia, and provide easy access to and from our large and convenient location near I-85. If you need our mobile service, we can come to you fast. For more information, see our Contact Page.


What We Know

While we don't know everything... after 34 years in the business, there is not much we haven't seen. We'll help you find the part you need for your truck or trailer, diagnose a specific problem with your rig, or define a maintenance plan to help you manage your fleet with as little stress as possible. Here's a short list of what we know, and the professionals that make sure you either become or remain a happy customer.

Truck Engine Repair
Truck Body Repair & Painting
Trailer Repair
Truck & Trailer Parts
Al Karnitz Al Karnitz Founder/CEO Al started Ace in 1981 as a turn key, full service tractor and trailer facility. It has grown from four employees to forty-eight since that time.                                                     
Guy Karnitz Guy Karnitz COO Guy joined his dad in 1985 to assist with the operations to grow the company. His sales experience at Brown’s Transportation has brought Ace Truck to where it is today.
Jamie Cole Jamie Cole CFO/Office Manager Jamie started with Ace in 2014. With her 20+ years of automotive financial experience, she is able to complete the necessary budgets and controls to grow Ace to new heights.
Jim Thompson Jim Thompson General Manager Jim has recently joined the Ace team, this year (2015). His service in management experience with Idealease will set Ace quality over the top of all competitors.