Every single time I go back to Pacheco Smog, it's always a wonderful experience, and this time was…read moreno different. Shervin was extremely kind, and I couldn't believe how fast I got in and out. The price was fantastic! Top-Notch, as usual! Thank you, Shervin!

I had a really frustrating experience with Pacheco Smog…read more I bought a used car that already had an aftermarket intake with a CARB sticker. When I first brought it in, the technician popped the hood, saw the intake, and still went ahead with the smog test--only to fail it on the visual. I was charged around $100 and told to fix the issue and come back, and that they'd retest at 50% off. I spent time and money replacing parts to get everything right and came back expecting that discounted retest. Unfortunately, the original guy wasn't there, and the person working that day refused to honor what I was told. Instead, he said I had to pay full price again. Yes, I'll admit I didn't have my original receipt--that's on me--but the bigger issue is they didn't even try to help. The employee refused to call the owner to verify what I was told, and apparently they don't keep any record of previous visits. No system, no accountability--just "pay again." The whole situation felt unprofessional and honestly pretty shady. It seems like the priority here is collecting as much money as possible rather than treating customers fairly. I won't be coming back.

Nice people Good service…read more Very friendly Affordable price No wait & 10 mins it's done I'm coming back to this place every time I need a smog! Sorry wrong review I went to ACE smog next door and this review is for them .

I dropped in about 9:30 am and the work was completed right away. The man was awesome. I should…read morehave gotten his name but I was out so fast I didn't.

Bay Side Smog Service is always outstanding!…read more I've been here a few times with different cars, and they are consistently friendly, accommodating, and quick. I've always been able to get an appointment the same day or the next day. They're located toward the end of the parking lot once you pull in. The smog check itself usually takes about 15-20 minutes, and there's a small office where you can wait while they complete the inspection. Once you pass, they provide the paperwork right away, and I've been able to renew my DMV registration within a few hours. If you need a smog check in the area, I definitely recommend checking them out. Great service, convenient appointments, and a very quick turnaround!

FINALLY!! A smog place I (and you) can trust…read more I came here as a last ditch effort in attempting to smog my wifes 2015 Chevy Malibu. We were getting some bad codes that prevented it from being smogged and I went to another smog place in Concord. I was sold approx $800 in repairs and THEN told that I should call CarFax get a quote and take it and get rid of the car! This 2015 Malibu is hardley drive as I work from home 100K milles. After hitting another auto repair place it was told to me... Im betting this would pass go to BAYSIDE SMOG... I did and Im glad I did. Retold my story to Naqib and he smiled and stayed neutral on it while seeing the disbelief in his eyes on my being told the car would cost more to repair and smog than to just "sell it as is" It took them 15 minutes maybe to smog the car with no issues... no weird side gimmicks or tricks, the car just passed as it was. Bayside has a lifelong customer and Ill steer everyone needing a smog to this guy. Solid service!

Excellent, fast, and friendly service! Called on a Tuesday around 12:40pm to book a same day…read moreappointment for a Smog check and was able to get one. I needed to get a Smog certification to get my car registration renewed, and Walnut Creek Smog made the process easy! Check in was quick, and the Smog check was completed in 15 minutes as promised. I've been here twice now, and I'll definitely be back in the future!

I had a great experience at Walnut Creek Smog. Making an appointment was simple and there was no…read morewait time after I arrived at noon. Andy and I had a fun conversation and the time flew by. The shop is clean and organized and everyone was very friendly. On the pocket on the driver's side door, I had a car escape tool holder attached and I had tried, unsuccessfully, to remove it. The man who did the smog saw that it was a problem and asked if I wanted it to be removed. He removed it which I really appreciate. He didn't have to do this but this was an example of someone going above and beyond. I highly recommend this shop.

Super Station is located along Monument Blvd, across the street from Del Valle Super Mercado…read more I came in as a walk‑in to get my gas car smogged on 07/17/2026 at around 10:45am. One of the attendants got me started on the paperwork almost immediately. By 10:55am, my car was already being inspected, and by 11:05am, everything was done. The total, including the state paperwork, was $58--about $15 less than what I paid for my last smog check at another shop. I was really happy with the quick turnaround and the price. Highly recommended! BONUS MATERIAL: - They are a STAR certified station. Smog check was $49.75 (with coupon found on their website) + $8.25 for the CA paperwork.

First time I took my car to a gas station car shop. I'll definitely go back for future smog test…read more They were quick and very professional. The price was very competitive.

Easy and fast smog service. Will was very helpful. I was in and out in less than 30 minutes.read more

Guys Smog is a well operated shop. Guy is a true professional. I recommend this shop hands down!read more

Great, quick service! The person working was really nice and made the whole process easy. I was in…read moreand out in no time. Definitely recommend supporting this local Pleasant Hill business!

Hours state they are open, showed up at 8:40 waiting till 9 for quick smog no one there, phone goes…read morestraight to voicemail, will take business else where

Called the same day and talked to the owner who was fantastic. I said I needed a smog check done on…read moremy car and he said I could come in the same day. I paid $65ish because they were running a promotion. I would definitely recommend them to anyone who needs theirs done. Thank you!

My Initial review has been changed because of Ken! I clld in expecting to get the same rude guy…read morethat's been there for years but was pleasantly surprised! Ken has great customer service and was just super cool! I told him I'd be in after work around 5pm. I pulled up, nobody there but me, but then again it's almost 100 degrees outside right now. I'm glad I gave them another shot. My review score went from a 1 to 5!! I appreciate you Ken and good looking out on the discount.

These guys handled my complicated project very thoroughly…read more I had a Tesla Model Y with an issue that was very difficult to diagnose. The knocking sounds were very quiet, and I honestly did not believe it would be possible to find the problem. But these guys were able to find it, and I am very happy. Thank you very much to them. It took longer than expected, but that is completely understandable for such a complicated diagnostic like mine.

I took my car here recently and when I got the estimate for my repairs I decided to Google the…read moreparts. It took me no more than one minute to see that they were way overcharging me for aftermarket parts. I then decided to call the dealer (most expensive parts you can buy) and in fact found out that I could get an original dealer part for less expensive than they were charging me for a cheap aftermarket part I encourage you to Google your estimate and see this for yourself before getting any work done here Another misleading thing was the manager up front seem to know absolutely nothing about cars or the automotive industry don't think that's a confidence builder to want to get my car repaired at a shop where the manager up front knows nothing about automotive repair. Do your own research and see I speak the truth

I went to Above Auto Care to have my Subaru's 60k mile maintenance done. I like to perform all the…read moremanufacturer recommended maintenance on time to help my car last as long as possible. When I went to the dealer, they quoted really high price and added a bunch of unnecessary services. I was able to get an estimate from Vuong which was much more affordable, and it was great to be able to text back and forth to make sure I'm only getting the services I really needed. It was also super easy to make an appointment. They were able to get me in and out in the same day even with all the difference things being done to my car. It was also really convenient that they have after hours dropoff available. You just park your car in their lot, and they have a safe place to drop off your keys. This was helpful because I had some work meetings I had to take in the morning at the time they opened, so I was able to go in before they opened and drop off my car. Highly recommend Vuong and his team if you're in need of any maintenance or repairs for your car!

Great customer service and quality work - the owner, Vuong, is super nice and will keep it real…read more Honest mechanics are hard to find these days, luckily there's Above Auto Care in Concord.