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    Cornerstone Auto Solutions

    4.7 (92 reviews)
    Closed • Closed

    Services - Cornerstone Auto Solutions

    Auto brake repair

    Auto engine repair

    Cornerstone Auto Solutions Photos

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    Recommended Reviews - Cornerstone Auto Solutions

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    5 months ago

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    24 days ago

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    2 months ago

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    Philip N.

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    5 months ago

    These guys were great, easy and straight forward with me. Much love for this crew. I'd recommend anyone to these guys

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    Philip N.

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    6 months ago

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    Philip N.

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    7 months ago

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    Philip N.

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    11 months ago

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    Philip N.

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    4 months ago

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    Philip N.

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    6 months ago

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    Philip N.

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    7 months ago

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    Philip N.

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    10 months ago

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    Philip N.

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    5 months ago

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    Philip N.

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    4 months ago

    I always have a good experience going to Cornerstone. They are up front with their pricing and a shop I can trust. I highly recommend!!!

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    5 months ago

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    Philip N.

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    5 months ago

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    Philip N.

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    1 year ago

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    Philip N.

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    6 months ago

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    Philip N.

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    3 months ago

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    Philip N.

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    7 months ago

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    Philip N.

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    6 months ago

    Always great service. Helpful team. Attention to detail and experienced. Trustworthy and great warranty program.

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    Philip N.

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    8 months ago

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    Philip N.

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    2 years ago

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    9 months ago

    Couldn't be happier with my experience at Cornerstone! Phil and Lopez and the whole crew took care of me. I'd never go anywhere else!

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    Philip N.

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    2 years ago

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    Phil N.

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    3 years ago

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    2 years ago

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    2 years ago

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    Phil N.

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    4 years ago

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    5 years ago

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    8 years ago

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    4 years ago

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    3 years ago

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    4 years ago

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    8 years ago

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    8 years ago

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    7 years ago

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    6 years ago

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    Page 1 of 3

    Ask the Community - Cornerstone Auto Solutions

    How much does a smog check cost?

    Does Cornerstone do wheel alignments? If so, how much do they charge, and do they do good work?

    Yes they do offer wheel alignments.

    Does this business off auto air condition service?

    If you are asking does this business offer air conditioning service, then the answer is yes...… 

    Don’t See Your Question? Ask Away!

    Review Highlights - Cornerstone Auto Solutions

    “Phil has an excellent team and they do a great job of keeping me informed throughout the process.”

    Mentioned in 27 reviews

    Read more highlights

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    (144 reviews)

    (I had this in my drafts and forgot to post so im posting it now)…read more I usually go to a mechanic in Upland, CA but when my check engine light turned on yesterday while i was here in Whittier i decided to look for a mechanic in this area since im always in Whittier. We went driving around to see what shops we found. Im really big on vibes and so when i spoke to a few mechanics I didn't feel comfortable with them. I wanted a place that wasnt overly expensive but that did a great job. After stopping at a few shops we saw this one and stopped. My first impression was 50's vibe lol Its like a small historic museum with a lot of retro items. The person I spoke to came across as a "no bs" type of guy. I heard him talking to the person in front of me and although I was a bit intimidated I felt that he would be honest and felt a good vibe. He was very professional. The communication was excellent. Service was quick. And they explained what needed to be done in a way I understood. The receipt they give is very detailed which I loved. I have since got a new car but if i ever need a mechanic, i would come here!

    Came here today to have Freon added to my car. Air…read moreconditioning in the car had been poor recently and it wanted it to work with the summer months coming around. I called prior to get a price quote and they said it could be done today. I decided to wait while they did this service. (Btw, Freon is $10 an ounce!) *This is my usual place to come to get a quick oil change too! Price is reasonable and they are open 1/2 day on Saturdays.

    Full Service Auto & Transmission Repairs - My engine had several leaks and was absolutely filthy and within a week I had a brand new looking engine and no leaks.

    Full Service Auto & Transmission Repairs

    (494 reviews)

    5 stars Francis at Full Service Auto & Transmission Repairs…read morein La Mirada did a lot of work on my 2007 GMC Yukon XL and he nailed it. He replaced the radiator and water pump, repositioned the external transmission cooler, and replaced the tail housing gasket on the transmission. My truck has never run cooler transmission temps than it does now. Francis is very knowledgeable and actually understands how these older trucks heat up when you're towing or sitting in traffic. He explained what he was doing and why instead of just slapping parts on. If you need cooling or transmission work done right, take it to Francis.

    On April 3, 2026, I dropped my car off at Full Service Auto & Transmission Repairs for what should…read morehave been a simple repair -- replacing the skid plate. I found Francis through an online search because of the many positive reviews, and during our first interaction he was friendly, professional, and seemed very knowledgeable. He ordered the part directly from Acura and quoted me a fair price. My car was ready the following day, but when I arrived to pick it up, Francis informed me that my vehicle had been involved in an accident while in his care. He explained that another driver had been speeding through the parking lot and crashed into him. He gave me the other driver's information, and I contacted him immediately. The other driver gave a very different version of events. He stated that he was backing out of a parking space and did not see Francis. He also told me that Francis provided his driver's license information but refused to share insurance information. Now, more than a month later, I still have a damaged vehicle and have not received insurance information from Francis despite multiple phone calls, text messages, and outreach from Mercury Insurance. I trusted this shop to take care of my car, not return it to me in worse condition and leave me responsible for a $500 deductible. What has been most disappointing is the lack of accountability and urgency. Francis acted as though this situation was not a major concern and repeatedly assured me that the other driver would "take care of it," which has not happened. According to the other driver, Francis even asked him to change the story about what happened. I chose this business because of its strong reviews and the image Francis presents, but my experience has been extremely stressful and disappointing. I believe customers deserve honesty, transparency, and responsibility when their vehicle is in someone else's care.

    Fullerton Auto Repair Clinic & Body Shop - Brought in for seal replacements

    Fullerton Auto Repair Clinic & Body Shop

    (454 reviews)

    I got a few quotes before deciding to bring my 2014 Prius Plug-in here, and I'm really glad I did…read more They weren't the cheapest and they weren't the most expensive, but I felt like they charged what they needed to in order to get the job done I had no idea they even worked on hybrids because I never saw that mentioned anywhere, and I think more people should know. They took the time to explain the repair, confirmed the diagnostic code, and even pointed out a few things I should do to help my Prius last longer. They noticed my hybrid battery cooling fan was missing after I told them I just had it "replaced" at another shop. That's the kind of information you don't usually get from a repair shop. They ended up not needing to drop the subframe, so they adjusted the labor instead of charging me for work they didn't have to do. It still took the amount of time they said it was going to take, but still discounted me a little bit which I thought was cool. I also had them do an oil change while it was there, and even that was less expensive than what I normally pay at places like Jiffy Lube or Valvoline. If you own a Prius or any hybrid, I'd definitely recommend checking them out. More than anything, I left feeling like they genuinely know these cars and took the time to educate me, not just fix it. I'll definitely be bringing my Prius back if I ever need anything else.

    I brought my car in here for a diagnosis because the car wasn't running properly and the check…read moreengine light came on. I was told that I needed a new engine and it would be like $6000. I got a second opinion and found out a tensioner in the timing chain had broke, and that was it, they rebuilt the timing system and I'm back on the road for less than $2000. I wouldn't trust them to change my oil.

    Cornerstone Auto Solutions - autorepair - Updated October 2026

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