Schedule your service at either of our two locations!

Reliable Auto Repair You Can Count On

At Ultimate Automotive, we put our community first, providing expert auto and diesel repair services to our neighbors in Slidell, St. Tammany Parish. We're a locally owned family business, dedicated to earning your trust and ensuring the job is done right the first time, every time.

Whether it’s a minor tune-up or a major job, we believe every vehicle deserves the highest level of care. Our skilled technicians specialize in a wide range of automotive services, including:

  • General Auto Repairs: From brakes to batteries, we’ve got you covered.

  • Diesel Repair: Big engines deserve big expertise—our team is up for the challenge.

  • Routine Maintenance: Keep your car running smoothly with oil changes, tire rotations, and system checks.

We combine cutting-edge tools with years of experience to restore your vehicle to peak performance.

What Sets Us Apart

You're more than just a customer—you’re part of the family.

We take the time to listen to your concerns, explain your car’s needs, and provide transparent solutions tailored to your vehicle. Our commitment to quality and community is what keeps our customers coming back.

Why Choose Ultimate Automotive?

  • Expert technicians who prioritize precision and excellence

  • Locally owned and operated

  • Family-run, with a dedication to personalized service

  • A reputation built on trust, transparency, and reliability

Schedule Your Vehicle Service Today

Don’t wait for a problem to grow. Trust your car to the experts at Ultimate Automotive and experience the difference a dedicated, community-focused auto repair shop can make.

Click below to schedule your service or give us a call. It’s time to get back on the road with confidence.

Diesel Repairs

Need automotive repairs or services over the weekend? No problem. Our Gause location has you covered!

  • My first experience with this company was beyond a 5 star. My partner’s BMW went into auto theft lock and would not start. The staff came to our house and climbed into the trunk to help resolve the problem. . Wow, that’s unheard of customer service but that act alone made me use them when it came to my Jeep. They were honest with the previous mechanics mistakes, fair priced, and the customer service was on point. Thank you to the mechanics and Taylor for the A-1 customer service and follow up.

    Neyda Chacon

  • Great customer service, communication, and knowledgeable.I went in just to get my trans flushed and filled, as well as my rear diff.and they called me for a small problem with my battery terminals I didn't know I had ,with a service check they do anyway, and was fixed.I will definitely be going back for any future service I can't do myself, as well as being quite affordable

    Chris Childers

  • I am not usually impressed with auto service shops but Ultimate Automotive is in a class by itself. The A/C in my 2010 Subaru failed, blowing hot & steamy, so I had them check it out. Don Stannard, the Service Manager, was great to deal with. He was personable and professional, quickly assessed the issue and his tech team came up with a smart and affordable solution. I was most pleased with the clear communication. Don took his time in explaining exactly what was wrong and what they could do to fix it. Best of all, it was finished precisely when promised and blowing icy cold now. (Jeff, these guys need a raise!) Really a great team you got there.

    Ken Newton

  • On the 8th of April at 10 am we called for help at Steven's repair shop. We needed 2 spare tires for a 20 FT trailer which turned out to be a very specific size. My family has been traveling from Las Vegas to Florida for three days and we were all worried about how to fix our problem. Stephen went above and beyond his professional abilities to help us. But what not every person carries in himself is the humanity in the heart! He is an employee who represents the company he works for as a professional, building customer relationships of loyalty and trust. Ultimate Automotive should recognize his skills and give him the opportunity to train new hires. Thanks from family Ware!!

    Dede Ware