Mark Duval
Mark is the owner of Duval's Service Center and New England Transmissions(since 1985).  He is an ASE Certified Master Automotive Technician and L1 Specialist NAPA Tech of the Year (96') Graduate of South Portland High School, SMCC (Automotive), and Saint Joseph's College ( Business)

Robert
Robert is and ASE Certified Advanced Level Specialist, Master Automobile Technician, and Off-Road Specialst, Garduate of SMCC Automotive Program

Tim
Tim is and ASE Certified Master Automoble Technician.  Graduate of South Portland High School and Wyoming Tech.

Tom
Tom is and ASE Certifed Master Automobile Technician, a graduate of South portland High School, SMCC Automotive Program, and a South Portland Resident

Zach
Zac is an ASE Certified Technician, graduated from South Portland High School and Lake Region Community College in NH.  He has six years of training with General Motors and resides in South Portland.