Catalytic converter repair service near Diamond Bar, CA

Gabriel is a great mechanic that does all my repairs. Very honest! I highly recommend him as a mechanic.

Amazing work. The owner Kenni is an amazing woman. It makes me feel so comfortable taking my car somewhere to get an oil change especially being a woman because I know they will always be honest with me. I will always come here for any of my car needs.

I bought my Pontiac brand new in 1988. 277,000 miles later it's starting to have a few problems, especially with the fuel injection and passing smog. IS&R fixed its current issues in one day and charged far less than I had expected to pay. Good work done quickly for a fair price. Now I'm trying to decide which of its other problems to have them look at next. Craigs great to work with as well!!!

ou. The owner Lary is a great guy and will work things out for every customer to totally understand what's happening to their vehicle . I trust this place and it's service and would definitely recommend this shop to my family and friends. =) -Kat Critchfield

I was on vacation with my family and I had a tire that kept losing air. This place hooked me up with a new tire valve and got me back on the road in no time! I came in with 20 minutes until closing time and they still provided fantastic service! Great customer service. Highly recommend this place for any tire needs! -Kristie Phillips

Professional/excellent service. I would definitely recommend this auto repair shop to others!

one of the worst feelings as a car owner is when that red "check engine" light appears...ugh. i brought my truck in today knowing that robert & his crew would be honest with me and let me know if any repairs were truly needed. i feared it was my alternator, a very costly repair... turns out it wasnt, and was related to the ignition box which has been replaced earlier that morning. no repairs were needed! big sigh of relief! i continue to give this business my loyalty because i trust them. bonus is that you get a complimentary car wash with your service. win! win! thank you again silver star !!!

Great job! Fixed an ongoing problem with my brakes at a good price. Honest, same-day service.

Owners, chief mechanic Chris is a native of Sweeden where he learned from the Volvo factory the highly technical applications of diagnostic techniques fixing Volvo automotive as well as the Saabs. Chris & his parents including cousin Jim worked at the Volvo factory. The mechanics working at Bertone has one common goal, customer satisfaction. None can compete with Bertone with consistent top quality service with very reasonable price. Bertone's customer base is built from repeat customers & referrals. Roger Valencia

This was the only place that can get my tire on the fly. I have a tire size that's hard to find quickly and The pricing was perfect. The service was great!! And pretty quick. I came in today and will be back in a few weeks for more work. I had a screw that was in a very bad area of my tire preventing it to be repaired. Before they charged me for the tire they took a look to see if it was repairable. Thanks guys!! Darcie Ragans

These guys are awesome Francisco has the best customer service he's staying after closing to solve a problem with my dad's ac. The cost isn't worth staying after but he goes above and beyond. This is my new place to bring my truck and refer my friends and family to, not only is it low priced service they are also honest. Good luck FNP wish you guys the best keep that 5 star rating you guys are number 1!

Went back to ATD saw alex and Tony, They got me in and out for another full synthetic oil change. Took care of my car and got me back on my way. Love this place. These guys the staff and the mechanic on duty are awesome. Aaron Doolittle

Came here because I had a flat tire. But not only that I needed an oil change so this individual camilo took care of me really fast. Not only was he fast he had the best customer service I have seen in a while. I highly recommend checking this place out. Great job u guys. Ask for camilo hes the best! Jonathan Cook

Had two flat tires on the way to get a horse. These guys changed what was wrong in literally 5 minutes no muss no fuss! Amazing place will be back to get our tires done in the future! Jamie Schicht

As always, you were courteous , fair, professional and patient, while we may have appeared to be impatient. Thanks again!!

I have used several mechanics over the years but found no one better than Jerry @ Santa Ana Smog and repair. He can work on just about all cars. He is very thorough and most important HONEST. He is currently working on my old MG car which is from England. Ana R Costa Mesa, CA

Good services they left my car like new got two new tires and alignment too! Jesse Guizar