It's like having the original Fast Five working on your car. Each person is a cool unique character. Great vibe. Cool, competent, professional. Place is located in a hidden cozy spot with an island vibe. Definitely will use them again. read more

The customer service here is terrible I was given a $150 quote and then when I came to pick up my car from being serviced they tried to charge me $1000. If you need a good mechanic go to Clayton Auto Center by Jack in the box they're actually honest. read more

These guys are great to work with. Easy to chat with and get to the bottom of a situation. Really nice vibe at the shop with the whole crew. Highly recommend. read more

Clayton Valley Auto Service - Auto Repair Near Me - Concord, California

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Very fair prices for the service (new fuel pump and an oil change). Referred by a neighbor. Towed my car in, got it fixed in 48 hours. Thanks to Harold and the guys at shop. read more

This is a good mechanic. Very nice folks. Work gets done in a decent amount of time. I just wish their synthetic blend oil change wasn't so expensive, I believe I paid $160 for mine. Yowza. read more

The story goes - Driving on the freeway last weekend and I heard a humming noise in the rear driver-side of our car. I encountered a similar noise on my other car a couple of years ago and had a wheel bearing replaced. I researched online when I got home, and most arrows pointed towards the wheel bearing as well. On Monday, 11/18/24, I looked online for the nearest shops in our area and found another shop and Clayton Valley Auto Service. I actually called the other shop first, but I didn't like the convo over the phone. I called CVAS right after and spoke to Keely. She was very helpful over the phone and was able to squeeze me in for the day after. I dropped off the car on Tuesday morning, 11/19/24. I spoke to Harold when I got there and told him what I suspected the issue was. Harold told me he would check it out and give me a call. A couple of hours later, Harold called me and told me they checked the wheel bearing and there was nothing wrong with it. He also explained that after further investigation, they found the rear tires are worn and suspected that it could be the issue. They switched both rear tires to the front and confirmed their suspicion. Harold recommended I change the tires and told me that he is not charging me for their diagnosis. I felt kind of bad about the situation as they spent time trying to figure out what was wrong with the car. I remembered my wife telling me before that the brakes were noisy, so I asked Harold if they could check the brakes and replace them instead. I followed up with Harold over the phone around 3 pm. He told me the brakes were still good and that replacing them now would be a waste of $$$. He told me I could pick up the car anytime before 5 pm. When my wife and I arrived at his shop, he provided additional info about the tires being worn out and adamantly recommended we replace the tires. He handed us the key to our car. I asked him if he could charge me at least an hour worth of shop time, and he refused to do so. I felt bad I was unable to give them any business, and while at the same time, they spent their own time investigating what was wrong with the car. I never expected to be shooed away and not pay anything. But at the same time, it was pretty cool to still find businesses such as Clayton Valley Auto Shop, who are honest and have integrity. The next time I run into an issue with our cars, I now know where to bring them. Thank you again, Harold, for taking the time to check on our car. ‍ read more

Finally an honest mechanic shop! Bring your car in here with any issues. I rolled in with a big nail and they had Tyler repair the tire on the spot. Nice & professional, earned my business for life. read more

Friendly and professional, they were honest about what to expect with my car and its age but were able to fix it and get me back on the road! I ended up spending more than I expected, but I KNOW it was less than anything I would spend at a dealership. read more

It was my first time going to Clayton Valley Auto Service. I had an alert on the dashboard panel of my truck that noted Maintenance Required. I knew it was something imporant that I couldn't let go. So I called them to see if I could get a last minute appt and they took me in, even though they were quite booked. They assessed the issue and fixed my problem. Their mechanics and the entire staff was so accommodating, efficient, very well-skilled, friendly and their prices were quite reasonable. I will be a repeat customer, for sure!! read more

Harold, Laura and every technician cares about each customer. Their priority is you! They are honest, care about you and I will not take any of my vehicles anywhere but Clayton valley Auto! While I was waiting for my vehicle, numerous folks came in thanking Harold for their previous service indicating other locations suggested expensive and unnecessary service! Harold takes care of every customer and treats everyone like family! read more

Charly here. Harold is the owner and an honest mechanic. He helped me clean out the intake manifold and even gave me a very reasonable price and worked with me. He's now the guy I call when something's up. He explains the information very well. read more

This place is great. I have gotten a couple of oil changes here and all is well. It was a fast turnaround too. I also had them do a checkup on my car before a long Christmas road trip one of the guys there suggested I get my battery changed based on the sound of the car ignition cranking too much. I kept it in the back of my mind. And a few days later I start up my car and my battery is dead. I called up Clayton Valley Auto Service and they immediately drove over to my house, jumped my car, drove over to their shop, and did a battery change real fast. The service here went above and beyond! Also a sidenote, I had some issues with my electronics in the car after the battery got replaced and they diagnosed the problem to be a bad fuse and replaced it. So even though the battery change caused a new problem, they took responsibility to figure it out and remedy it. I really like this group of mechanics, they do a great job and I appreciate them! Thank you Clayton Valley Auto Service! read more

I have to agree with Michelle H. Harold is the greatest!!! He was very polite, honest and he took care of my car. I had planned a trip to LA and he could hear the desperate cry for help in my voice when I called in. He had me bring my car in and he and his co-worker performed the diagnostic and still couldn't find the problem. He tried one more thing. He pulled up a report " Hyundai shutting off" and found on the report, 4 other people had the same issue. Bingo! It was my timing! Thank you again Harold Yolanda S read more

Harold is very good at what he does, I had taken my vehicle to a tire and front end shop and was told I had a bad motor mount. They could not fix it so I called Clayton Valley auto, within a hour Harold called and said it was not a motor mount but a broken bolt near the engine. He fixed it in an hour for a very reasonable price! read more

At 7:30 in the morning I pulled into a Walnut Creek parking lot, steam coming from under my engine hood. Fluid was pouring out onto the ground. AAA took me to the folks at Clayton Valley Auto Service by 8:30. I had called ahead and they said, "Sure. Bring it in." I thought it was a coolant hose. It turned out to be the water pump. They replaced it, refilled the coolant, pressure tested the system and ran a test drive. Everything checked out and I was called at 1:45 saying the job was done and I could pick up the truck. That's great service. The dealer would have charged me a great deal more and taken a great deal more time to do the work. I got great value for my money. Thanks. read more

My husband's work van literally broke down across the street from CV Auto service. The owner walked across the street to see what was wrong. He took a look at it, ordered the part needed. It came in that same day. The owner had us back on the road by the afternoon so that my husband was good to work by the next day. We thank you for your help and appreciate you. read more

Harold and Laura are great. They went above and beyond to help me. I am so appreciative. They made sure my car was fixed and were so helpful and reassuring. Five stars all the way. read more

Had a repair done on my 2007 Acura last week by Clayton Valley Auto Service. I have to say once again this place has gone above and beyond. They got us in immediately, the diagnosis was very timely and the repair was done the same day. The price was half of what the Acura dealership was quoting and they didn't try to up sell us on everything under the sun like the dealer always does. I had a feeling the serpentine belt was also bad but forgot to mention it, and they but a new one on anyway at just the price of the belt ( it had to come off any way with the alternator replacement). Harold the owner was fantastic and very helpful. I hate taking my cars in for repair, but these guys made it a pleasure. Thanks Clayton Valley Auto Service! read more

I drove from Corona Calif. 422 miles to have Harold service my car. I didn't realize I would need to have my car serviced on this trip, However as my car started showing signs of engine problems i'm so grateful I was recommended to Clayton Valley Auto Service. Harold greeted me as I drove in and explained everything to me every step of the way. Right away Harold let me know this should be covered under warranty with Chrysler. Then he checked out everything to make sure the problem was covered under warranty so that I had enough information to decide how to proceed. Being a small business owner (from out of town on a working trip) Harold and all of his staff showed what amazing customer service is. Their kindness and integrity truly blessed me. read more

great service & entertainment while you wait... very flexible, honest & upfront ! shopping center just a few steps away & fire station right next door ! read more

Clayton Valley Auto Service - Auto Repair Near Me - Concord, California

Goldmine! Talk about great service and a shop that figured out my GMC issue super fast. Experienced, and honest. Busy yes, but worth the wait. This is my shop from now on. Thank you Clayton Valley Auto ! read more

Clayton Valley Auto Service - My K2500 - Auto Repair Near Me - Concord, California

Harold the owner just fixed the hood on my car for me because it wouldn't close correctly. He said Happy holidays and wouldn't take payment. My neighbors recommended the shop for the good work and honesty. I'll go to them for my car needs from now on. The vibe in the shop was friendly and fun. Happy Hollidays everyone! read more

Very timely inspection and diagnosis of my car, explained the problem in detail along with their strategy for the repair. Completed the car as promised at a very reasonable cost. Great communication with the service writer ( sorry can't remember her name). Will be returning here for sure read more

The new owner, Harold, is a real stand up guy! I had been a loyal customer to this shop prior and am happy to report I'll continue to be. Harold took ownership of a problem that wasn't fixed quite right with my thermostat that the previous owner didn't catch. He was honest and took care of the problem without trying to make a buck. How many mechanics do you know that would do that?? You can tell he puts a lot of pride into his work and truly cares about his customers. read more

Had a very positive experience this morning at Clayton Valley Auto Service: the fiberglass liner of the front driver's side fender had come loose and I was told to bring it down first thing in the morning. Very quick service; fairly cheap and everything's going well on the road again! read more

Extremely helpful, answered all my questions on the phone and Harold was very helpful to check out my car and refer me to someone he trusts despite having so many cars to work on. read more

Hands down the best! Drive all the way from Oakdale, CA for these guys to work on our vehicles. They are practically family at this point. They are always very prompt and we've never had a single issue when we've gotten our cars back. Thank you Harold, John and all the staff for keeping our cars at their best! read more

A great auto mechanic so close to my home! Such a pleasure to deal with professionals that are friendly, hard working, timely and respectful of my wallet. I will definitely be recommending this shop to everyone I know! You gentleman made my day. read more

Not a good experience here. I made an appointment for 730am. I had to be at work at 7am, so I dropped my car off - used the envelope to provide my key and wrote detailed info on the envelope.Took an Uber to work. I called at 705am to verify they received my key and was told that they haven't gotten around to checking the mailbox yet. That they are busy moving cars out of the lot at the moment. Okay, I understand that. However, when I was off work (6 hours later) I called to check on the status of my car. I was informed that they haven't even looked at it yet and the mechanics were at lunch at the moment. I was not told that my car wouldn't be looked at until the afternoon - if that was the case I would have brought it in after work. I was not kept posted that there was a delay. So I told her I would just come pick up my car then, since they didn't have the time for it. Took an Uber to their shop. Mechanic didn't even come out to say sorry, that they can re-book for another time, that they would reimburse me for the Uber.. nothing. I was told they were backed up and given my keys. I totally understand being delayed .. however you should really contact your appointments and let them know that you won't be able to to get to their car. Give me the option to not even go through the motions of dropping it off and paying for Uber round trip when you are so busy you can't possibly get to my car that day. I had heard from many people that this was the shop to go to, but this was not the experience I was looking for. Such a shame. read more

Harold is the best and my go to guy for all my car needs! Friendly and fast service. Honest reliable guy..he had my car fixed and ready to pick up within hours..my AC has never been cooler and the jerk from my transmission is fixed and now runs better than ever! Highly recommend! read more

Too bad that you can not give negative Star. Started out fine with these folks when I brought my mustang 3 months ago to trouble-shoot where a squeak was coming from under the hood and why the car pulled to the left when you applied the brakes. Owner said they could fix and did solve most of squeak but still happens occasionally and brakes no longer pull but now vibrate like hell when applying brake while headed down incline of any kind. I also had them install a Pertronics electronic ignition kit being told that was an easy install. Car now runs like a Vietnam era Huey Helicopter landing on hard rock terrain. Not good. Took car back to Clayton Valley and was told that there will be a 3 week wait until they can get my car back in. Thought that was a bit unreasonable but had no choice so waited. 2.5 weeks later---after waiting for 3 weeks to get back in to fix original work done----to find out they still had not fixed either the brake vibration or Huey effect. Pulled car out last Thursday promising myself never to use them again. Returned today for to collect original ignition rotor that I had been asking for and had to literally run from irate owner (Harold I believe) as he yelled profanities "get the fk out" Beware of what you are promised here. They appear helpful at first. Beware the owner's smile. ..... read more

I stopped by for a simple tire repair, a plug, which tire shops wont do anymore. Plugs have been done for years and I got exactly what I wanted . Very friendly, I will be brining my car back when needed for a real service. read more

5 stars all the way! I was so very impressed with Harold and CV Auto when my car decided not to start. Harold is trustworthy and knowledgeable. Luckily I had a small problem. This is a fabulous family owned shop. I will be bringing my car here for all future maintenance and repairs. read more

I've been going here for years, this shop is awesome. Once again they have got me back on the road quickly and at a reasonable cost (I do my research). If you need any auto repair work done I highly recommend this place. CLAYTON VALLEY AUTO SERVICES 925-682-2281 1505 Rishell Drive, right behind the Fire Department On Clayton Road just past Bailey Road. read more

My 2005 Honda Element's Check Engine light had been on for awhile. Based on the positive reviews on Yelp and the fact that Clayton Valley Auto Service is just a short walk from home I decided to give them a try. I dropped the car off at 7:30am and received an estimate for the diagnosis before 10am. There was a problem with something called the VVT solenoid. The estimate seemed reasonable so I gave my approval. I did some research online and saw that a new one could cost as much as $500. Harold's estimate including parts and labor (and a new gas tank cap because my gas tank cap gasket was broken) was $430.72. The final cost was actually a few dollars less than the estimate. The car runs so much better. I highly recommend Clayton Valley Auto Service. read more

Great crew, great service, and good prices! Walked in for a thermostat replacement and it was well worth it, was in and out in an hour. The new owner Harold and his son John really know how to run a great shop and is providing the best service around town. I will definitely be coming back for future service and I highly recommend them! read more

Love this place! Great customer service and they do work quick and efficient. My go to shop for sure!

This is not good. Took my 2013 Ford Escape in on 12/01/2020 for leaking coolant. At first estimate included timing belt--good to do to avoid extra charge in future. Actually came out to $468.99 as it ended up not being the water pump, rather leaking from heater hose. Then on 12/10/2020 car having same problem of coolant leak. With only 96 additional miles on the repair. This time it was $246.78 of which labor was $153.85. I didn't mind paying for the parts. But not the labor. I went back a week or two later and spoke with Harold. He would not lower the fee so I told him I would not go back there. (I had no problem in the years I went there before Jeff passed away.) Anyway Harold said "do you expect my employees to work for nothing?" No I don't want him to pay his employees zero for their work, but I do expect him to stand behind their work. The way this was handled he would be nickel and diming me to death for the same/ongoing problem. BTW--Better Business Bureau is for the businesses, not for the consumer. read more

Attention attention Harold is amazing ! Took care of my care in a timely matter and kept me updated on everything I needed done to my car including prices ! Completely honest every step of the way! Best service I had in a while!! From now on he has my service in his hands ! Truly trusted ! read more

The most excellent service and professional auto shop. I've been taking my trucks here for years and the shop is better than ever and fully upgraded. Professional mechanics that are skilled with new ownership that provides great service with integrity. read more