Welcome to our website!

Trans-Medic Transmission Clinic is a full service transmission repair shop. Our clinic covers the full spectrum of automotive drivetrain repair, including automatic and standard transmissions- both foreign and domestic.

This family owned and operated business was established in 1984 in Windham, New Hampshire. A second location can be found in the beautiful Lake Sunapee area..

Both Andrew Costa proprietor of the Windham location and family member John McKew, proprietor of the Sunapee location have more than 40 years experience in the transmission repair industry.

Trans-Medic emphasizes that car and truck transmissions need regular check-ups for the vehicle to function properly. Part of our service is to educate the consumer.

Our team of service technicians proudly display the ASE insignia denoting that they have been tested and certified by the Automotive Service Excellence board.

Trans-Medic Transmission Clinic offers personalized service, competitive prices and top quality repair work.