1801 W Arrow Route
Upland, CA 91786

Mon - Fri: 8:00AM - 5:00PM

Sat - Sun: Closed

98.9% would refer friends and family to us

5 stars Customer since 2008

Thanks Glen -- if you have time to see this note, here's a question for the 1996 Geo when I get on the freeway. What's the best gear to use? Should I push it into 2nd gear in order to pull ahead of other vehicles in order to merge? 4th gear is the cruising gear and has no boost on the Geo. Thanks!

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5 stars Customer since 2013

First time customer with GDA. Glen took the time to explain what he anticipated may be a problem for our old Ford Taurus, did the work, explained what he observed, was friendly and I believe very fair in his pricing. You get the feeling from speaking with Glen and looking around at his shop at dozens of hand written testimonials from appreciative customers that not only does Glen know his craft but he also cares alot about his customers experience with GDA.

5 stars Customer since 2004

Excellent job and service as always.

5 stars Customer since 2006

Wonderful to be back !

4 stars Verified customer

Glenn gets the job done on time, and can often succeed where other shops fail.

4 stars Customer since 1997

It's nice to have a mechanic who I feel is honest and knows his job very well.

5 stars Customer since 2010

Vehicle was taken in for smog service and inspection. Was a great experience, like one stop shopping. Repair, inspection all in one place. Fair pricing too. Will return for future services, found a great shop.

5 stars Customer since 2012

Timely service and reasonably priced

1 stars Customer since 2011

You are so very helpful and we appreciate having the brakes up and running. Can't remember how we found one another, but we are certainly thankful we did.

5 stars Customer since 2013

Excellent service, excellent prices. Finally a professional who knows how to take care of cars and people!