Riley Transmissions


Monday-Friday 8am to 5pm

Saturday 8:30am to 12pm

You only want to leave your vehicle in the best, most capable hands when it needs work done.


That is why you should always bring it to Riley Transmissions. We are BBB accredited and our technicians are certified through ATRA. That means we really know our stuff!

Transmission Repairs

More on transmission repairs

Contact us today with questions or to make an appointment.


- Differentials

- Transfer Case Repair

- Computer Diagnostics

- Radiator Replacement

- Brake Service


Automotive Repair

More on automotive maintenance

- Over 36 Years in Business

- Accredited BBB Member

- 30 Year Member of the  

 Automatic Transmission  

 Rebuilders Association

- Nationwide Warranty Through

  ATRA (Automatic Transmission  

  Rebuilders Association)


Why choose us?

Contact us today

We have been locally owned and operated for over three decades, and proudly serve San Marcos, Wimberley, Lockhart, Seguin, Maxwell, New Braunfels, and Martindale.

repairman wrench and screwdriver Wrench and transmission wrench with automobile line stripes stripes auto repair top ATRA-Riley Transmissions

Our automatic transmission overhauls include a nationwide warranty!

Where quality isn't expensive, it's priceless.

Riley Transmissions offers complete transmission repair and services. Family owned and operated for over 36 years, we have been voted as the #1 Transmission Repair Shop in San Marcos and Hays County for 18 years.