About Us

Built On Experience And Hard Work

Tall City Diesel Services is a family-owned business led by Jenny Phillips and Keith Phillips, built on years of hands-on diesel repair experience. After Keith graduated from UTI in 2011, he has spent over 15 years working in the field, developing the skills needed to handle complex heavy-duty repairs. Much of that experience comes from working with fleets, where uptime and reliability are critical.

In addition to fleet work, our team has several years of oil field experience, where equipment operates under extreme conditions and repairs must be done quickly and correctly. That background drives our approach—efficient, practical, and focused on keeping your truck working when it matters most.

Growing To Serve You Better

What started as a mobile-first operation has grown into a full-service repair business. Tall City Diesel Services still provides 24/7 mobile repair across a 100-mile radius, but we’ve recently expanded by purchasing our first shop in Seminole, TX.

This allows us to handle more extensive repairs while continuing to deliver the fast, on-site service our customers depend on. Whether you need us to come to you or prefer in-shop service, we’re ready to get the job done. Shop or Mobile, we get it done.

Honest Work You Can Count On

At Tall City Diesel Services, Jenny and Keith believe in treating customers with respect and honesty. You’re not just another ticket—you’re someone we communicate with directly, explaining the problem and the solution in a clear, straightforward way.

We stand behind our work 100%. If something isn’t right, we make it right. That commitment to honest service and quality workmanship is what builds long-term relationships with owner-operators and fleet managers who trust us to keep their equipment running.