Castners Auto Service

Castners was able to diagnose a rattle noise from underneath my car when two other garages could not. They determined it was my secondary catalytic converter. They were even able to drop me off and pick me up from my office, which is only a couple of miles away. Great experience and would highly recommend to others.

If you want an HONEST auto repair place then Castner’s Auto Service is the one! I had another auto repair place tell me that my 3 year old transmission in my CTS needed to be replaced. I went to Ron Castner for a second opinion. He told me it was most likely my brakes that where causing a miscommunication with my wheel module because of the shaking when I applied the brakes and I needed to replace one gasket spark plug tube seals, spark plug & Ignition coil So instead of $ 5,000 to replace a perfectly good transmission. It only cost me $ 1,200 that included turning rotors replacing pads, and other brake stuff. AND then I still had a hard down shift when going downhill and applying my brakes. THIS IS THE BEST PART, I went back to Castner’s and Ron said «your brakes still don’t feel right, I stand behind my work» so he then replaced my rotors, pads, caliper. pad hardware reline front and rear brakes, and other stuff AT NO ADDITIONAL COST!!! YES CASTNER’S STANDS BEHIND THEIR WORK. I HIGHLY recommend them.

Castners has been very helpful with diagnosing many difficult issues on one of our vehicles that would not pass smog. They gave valuable direction and our older truck passed. They also have serviced our newer vehicles many times. They are honest and reliable!

Last week we had our 2006 PT Cruiser worked on here. The timing belt and engine mounts had to be replaced. The work performed at the shop was completed in a timely fashion and under budget. in short, they under promised and over delivered. I couldn’t be happier. coming from a retired 30 year mechanic, this place is where I get my cars worked on for now on. Thank you Castner Auto Service. This is a very professional and CLEAN shop.
ps my wife swears the car has more pep and pickup.

This place is awesome. Family owned and operated for 50 years or so? Very trustworthy. Took my ’02 Accord for brakes, fluids, and to check on a few things. Told me what I absolutely needed, what I needed when I could afford it, and what could wait a little longer. Prompt service and called me multiple times to keep me updated and provide options. If your main concern is finding a mechanic who will be straight up with you, this is the place.

Great service. never feel I’m getting ripped off. They open the gates at night to put my car inside. I drive 30miles from Eastvale just to use them

I showed up for a smog check on a busy day and they were all able to check my car right away. Friendly service with a reasonable price.

You know how frustrating it is when your car breaks down, I called Castners, frustrated because I couldn’t get to where I needed to be, and Katie answer and was so helpful, and that service continued the whole way through, they were fast, fair, and did great work, highly recommend Castners Auto Service

Top notch! My family has been going to Castners for years and years. They never try to upsell you and are always honest and helpful. I really would never go anywhere else.

HONEST, HONEST, HONEST! Top notch service every time. Don’t go anywhere else.

castners auto service is honest, and fair. they take great care of me. ron is the man!

Friendly honest service. You can trust them.

My family has been coming here for almost 30 years. Very honest and reliable… friendly and good service. They are certainly not the cheapest always, but very fair and they do quality work. They won’t scam or upsell you on things you don’t need.

I took my car in because it was overheating. I figured it was going to be something expensive. Ron, the mechanic, says it probably just needs a little fluid. What mechanic has ever tried to save you money?
It ends up being a little more extensive repair because of a leak but the whole team is honest and up front. They called to explain my options and did not try to up sell me on some nonsense.
If you are looking for an honest, family owned mechanic, Castners is definitely worth a try.

These guys are a permanent part of history repairing cars in Placentia for more than 60 years. They fix cars right and are honest. I have used them many times and will continue to do so, they do not charge too much but they don’t charge low prices that usually mean poor quality or adding things you don’t need.
These guys know what they are doing, are laid back and really care about you. I consider it a risk to try some of these other shops because they can really be, well… dishonest.

Wow… no one has reviewed this awesome, family owned and operated car repair service? Hard to believe. They tell you the truth, stand behind their work, and fix your car on time. They don’t bring you in and start the up sell. They want you as a customer for life. I typically shy away from these type of commitments, but you have to have 3 things in life nearby where you live: 1) a reliable car repair shop, 2) a good, inexpensive italian restaurant, 3) a sports bar with adequate tvs for Sunday football.