Dave (owner) and Steve (mechanic) are knowledgeable, helpful and friendly. I definitely recommend them!

Great personal attention and quality of work at this well known among Porsche nuts shop from second generation owner Dave Modderman , who oversees everything and discusses the work and options ..I had to convince him to change certain things that I wanted changing even when he said they looked fine ...many other shops are the opposite and swap out things that don't need it purely for their profit from gullible owners . That's the Modderman difference !

I feel confident that Dave aims to provide excellent quality service. He suggests only what is needed to maintain the reliability and joy of ownership for the classic cars he services.

top notch service with a smile!

Outstanding service. My first using their service and will continue. Would strongly recommend to any Porsche owner.

Dave and team at Modderman were great. I had an unexpected service light and needed my breaks done. They cleared the issue and replaced the brakes and rotors. The delivered the car on time and met every expectation. I would highly recommend Modderman

Always great service and I really value their in-depth knowledge of Porsche cars. I appreciate the drop off and pick up at my house.

Modderman Services were friendly, communicative, accurate and on time. They are my go-to shop.

David, He is great and the service and personality makes me feel like I am at home relaxing knowing that my daughter's car is in good hands. The staff very friendly and very fast on response with questions I stopped going to the dealer sense I met David he will actually do what he says on your vehicle and very well priced. David thank you again GO SJSHARKs

Amazing customer service. Highly trained and courteous staff. Hands down the best Porsche service in the Bay Area!