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Meet Our Staff

ASE Certified | Certified Transmissions, Inc.

Certified Transmissions Inc. is a local family owned, and family run automotive service organization. Our family of 100% ASE Certified knowledgeable and experienced personnel have one common goal in mind. That is providing reliable Prescott auto repair expertise at an honest price. Our office staff plus transmission and general automotive ASE Master Techs are diligent in applying the highest degree of integrity and attention to all of our diagnostic, service, maintenance, and repair work. Adherence to our various affiliate's Code of Ethics also helps ensure that when you trust us with your vehicle, or just want automotive information, you can have confidence in the outcome. The Certified automotive family is always courteous in our effort to provide you with the quality of service you want and deserve. Here's who provides that at Certified Transmissions, Inc.

Mike Pfeiffer | Certified Transmissions, Inc.

Mike Pfeiffer, AAM

Owner and President: ASE Master Tech, Service Consultant, and Parts Specialist

Originally from the Midwest, Mike's first experience in the automotive industry was in his Uncle's transmission shop over 40 years ago. Mike and his wife Sharon moved to Prescott and broke ground for their family business, Certified Transmissions, Inc. in 1987. Mike has many professional certifications including: GM Factory, Toyota Factory, ATRA, ASE Master Automobile Technician, ASE Service Consultant, and AAM (Associate of Automotive Management) through AMI (Automotive Management Institute). Mike is also a member of the elite Sonnax Tasc Force. He attends most technical and management seminars held annually by these organizations. Mike is currently President of Arizona's ATRA chapter, President of the local ASA chapter, and is on the Board of Advisors for the local Prescott High School's Automotive Technologies division, plus an active Board member for our local Yavapai College's Automotive Technologies Division.


Paul | Certified Transmissions, Inc.


Service Manager: ASE Service Consultant, ASE Parts Specialist, Work Flow Supervisor

As Certified's chief Service Consultant and work flow specialist, Paul is an ASE and Automotive Management Institute Certified Service Consultant. Paul started out in the automotive industry by working at his dad's service station in the mid 1980s. He joined the Certified Transmissions, Inc. family in 2003. Paul also holds an ASE Parts Specialist Certification and keeps Certified's operations running smoothly, despite a hectic, busy schedule.


Andy | Certified Transmissions, Inc.


Shop Foreman: ASE Master Tech, ASE Undercar Specialist, ASE Medium/Heavy Truck Specialist, ATRA Master Rebuilder  

Andy joined Certified in 2003 after his many years in the industry, including as a Ford Master Drivetrain Specialist and a UTI (Universal Tech Institute) Instructor. Andy's many professional certifications include ATRA Master Transmission Rebuilder, ASE Master Automobile Technician, ASE Undercar Specialist, and ASE Medium/Heavy Duty Truck Technician. Andy keeps Certified's shop production running at its most efficient and answers many technical questions from our neighbor automotive shops, especially concerning transmission issues, including late and vintage parts.


Kevin | Certified Transmissions, Inc.


Diagnostics and Repair Solutions Specialist: ASE Master Tech, ASE Master Medium/Heavy Truck Tech, ASE Advanced Specialist, with other ASE Certifications

Kevin loves to solve complicated electrical and mechanical automotive issues and challenges. Joining Certified in March 2008, Kevin is a veteran of both the automotive industry and the U.S. Air Force. Kevin has several ASE advanced Certifications including Master Automobile Technician, Undercar Specialist,  Advanced Level Specialist (Engine Performance and Diesel Engine Diagnostics), Master Medium/Heavy Truck Technician, and Alternate Fuels Technician. While attending NAU he majored in Electrical Engineering. Kevin's military service involved being an honor graduate in Electronics, Communications, and Navigation. Kevin's 20 years of ASE Certified experience in the automotive field is supplemented through continuing education in nearly every automotive discipline.

 AJ | Certified Transmissions, Inc.


General Services Specialist: ASE Master Tech, ASE Automobile Specialties

Besides being an ASE Master Automobile Technician, AJ is also ASE Automobile Specialties Certified in Automatic and Manual Transmissions/Transaxles, Engine Repair, Suspension and Steering, and Brakes. AJ joined the Certified family in August, 2012, with 12 years experience in the automotive industry. With his training and expertise, AJ knows how vehicle systems generally and specifically integrate with each other.


George | Certified Transmissions, Inc.

George, AAS

Transmission Rebuild Specialist: ASE Certified Transmission Specialist

For the past ten years, George has been Certified's semi-retired, Go-To transmission rebuilder. George holds an AAS Degree in Automotive Technology from Triton College, which program is certified through ASE (Automotive Service Excellence) via its NATEF (National Automotive Technician Education Foundation). George and Andy, our Shop Foreman, have worked together in the same shops or in close proximity to each other in the automotive and transmission industry for over 35 years. Even on a part-time basis, George gives a full-measure of full-service automatic and manual 2-wheel and 4-wheel transmission assembly, transfer case, and differential expertise. George is extremely knowledgeable with either vintage or the very latest transmissions and everything in between.


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