About Us

Tumwater Automotive is a family-owned business that has been in operation since 1991. Owner Brett Hardcastle has been in the automotive repair business most of his life. Prior to opening his own shop, Brett worked for his father who owned service stations in the Olympia area. In 1987, after learning the business with his dad, Brett bought an Exxon service station that was located on Trosper Road next to present-day Fred Meyer. Wanting to focus more attention on the automotive repair service side of the business, he built and opened Tumwater Automotive on Capital Boulevard in 1991.

There are four ASE certified mechanics on staff each having their own specialty skill area as well as excellent knowledge and experience on servicing automobiles. The mechanics are highly qualified and are in continuous education to keep up-to-date and proficient at repairing the diversity of vehicles on the market today. When customers come in to have their car serviced they can count on always having their own mechanic to do maintenance and repairs on their vehicles. The mechanics at Tumwater Automotive work to build a rapport with their customers by encouraging them to discuss their automotive repair concerns with their mechanic. This way customers and mechanics work together to understand the repair and maintenance needs of their vehicles.

In 2004, Tumwater Automotive was recognized by General Motors for its excellence and was featured in General Motor’s Intune Magazine as a leader in customer service specializing in progressive automotive repair. As an AC-Delco certified shop, you can be assured that all the parts used in the repair of your vehicle are top quality. Tumwater Automotive uses cutting edge technology to diagnose the problem with your vehicle and only uses the best parts on the market for repairs.

In 2005, Brett and Denise Hardcastle opened Tumwater Auto Spa which is located next door to Tumwater Automotive. The automated exterior carwash serves as a compliment to the automotive repair business. All cars are given the “spa” treatment prior to being picked up by customers.


Mitchell Williams

Mitchell has been the Service Writer at Tumwater Automotive since 2009. Mitchell has recently taken over the technical/computer responsibilities in the shop office at Tumwater Automotive. He has proven to be a quick learner while taking over communicating with our customers using our RO Writer system. Mitchell makes sure customers are checked in, drives the shop shuttle, and helps with the flow of parts between office and mechanics. Mitchell is a graduate of high school and enjoys sports in his free time.


Tom Victor

Tom has been with Tumwater Automotive since 1994. ASE certified – engine repair, brakes, and engine performance–Tom specializes in brakes, engine repair and diagnostics, differential repair, tune-ups, suspension repair, drive train and AC. He received some of his training at SPSCC, served as a US Navy diesel technician and was with Chevron USA. Tom continues to train and fine-tune his craft as a mechanic. His hobbies include drag racing and working on his son’s 1969 Chevrolet Nova which is a father-son project for racing.


Mike Sallee

Specializing in general auto repair—foreign and domestic, Mike has been with Tumwater Automotive since 1991. He is ASE Certified and has received a variety of AC Delco and CARQUEST0 Certificates and awards. In his thirty years as a mechanic, Mike has continued his training through AC Delco and CARQUEST. Mike has been married for 25 years, has two sons and loves to work in his garden and woodworking.


Mike Senko

Mike has been with Tumwater Automotive since 2009. He is ASE Certified and continues his training with AC Delco. He is an excellent mechanic that can tackle the most challenging of jobs. In his free time he enjoys hot rod restoration and is a mentor in the youth automotive field.


Matt Madden

With over twenty-seven years of experience, Matt has been with Tumwater Automotive since 2007. He specializes in import and domestic drivability, wheel alignment/suspension, and electrical diagnosis and engine repair. Matt is a Hunter Wheel Alignment Master Technician, ASE Certified in engine repair, manual drive train/axles, suspension and steering, brakes, electrical/electronic systems, heating and AC, engine performance and automobile advanced engine performance. Matt has Delco Tech Course Completion in Engine Diagnostics, Carburetion, Fuel Injection, Ignition and Emission Systems. He continues his training through AC Delco and CTI Technical Institutes.


Brett Hardcastle

As owner of Tumwater Automotive, Brett has been in the automotive industry most of his life. He began working for his dad who owned service stations in the Olympia area learning the business from the bottom up. After attending WWU, Brett bought an Exxon service station in 1987 located in Tumwater. Then in 1991, he built Tumwater Automotive. Married with four children and five grandchildren, Brett enjoys tennis, spending time with his family and enjoys being involved in the Tumwater community he grew up in.