Professional Transmission Service welcomes you to our St. Joseph & Benton Harbor automatic transmission repair shop website. Each transmission technician at our automatic transmission repair shop is highly qualified and ready to deliver their expert automotive transmission repair technician knowledge & skills for your every automatic transmission repair need. Professional Transmission Service pledges to all of our customers that we will not remove a transmission from a vehicle in order to complete a repair unless absolutely necessary. Additionally, our shop promises to diagnose transmission problems for all of our customers in an honest and expert manner. Call us today for more information.