We Offer Full-Service Transmission Repair Certified Transmission is a local shop in Ball La. Our staff at are all highly trained and certified technicians with one common goal in mind - quality service at honest prices. Adherence to the ATRA Code of Ethics also helps ensure that when you bring in your vehicle for transmission service or repair you know that you are receiving honest and professional service from our technical staff. Our transmission technicians are always polite and courteous in their effort to provide you with the quality of service you want and deserve.