I needed to renew my vehicle registration at a STAR station. I went to A-Tek two years ago, and I…read morewent back again the other day. I didn't make an appointment and had to wait a little while, but they have a little waiting area with chairs. When it was my turn, it only took 10 minutes! It was quick and easy. The guy told me that he submitted my information to the DMV. FYI, they do not accept credit cards. You must pay with cash or Zelle. I highly recommend this place if you are looking for great service!

My go to smog place! whole process was always quick and easy. The owner got me in and out fast…read morewith no hassle. Super professional and honest.

Wonderful service received at Vista Test Only Center today! I called ahead to see if appointments…read morewere required. They indicated it was okay to just stop by. Sure enough, I arrived and there was no wait. The friendliest guy greeted me and offered me water and a chocolate treat while the service was completed. It was quick, easy, and a great service. I appreciate the ease of the experience and would highly recommend this business for smog testing.

I highly recommend Gregory and Vista Smog! After another…read moresmog shop wasted two days of my time, I found Vista Smog and Gregory was willing to see me immediately. My 2018 Honda Civic kept showing "Not Ready" because I don't drive much since I work from home. Gregory patiently explained the situation and told me to drive more and come back. He was honest, knowledgeable, and never once tried to scare me into taking my car to the dealer. He said he's been doing this since 1987, and you can tell. This is the kind of old-school customer service that's hard to find these days. After my car finally passed, Gregory even gave me a complimentary car wash next door, which was such a thoughtful gesture. After the week I'd had, the little smiley-face air freshener from the car wash actually made me smile. Most people only write reviews when something goes wrong. I wanted to leave one because Gregory did everything right. Honest, patient, professional, and genuinely caring about his customers. I've found my new smog guy and will definitely be coming back in the future. Thank you, Gregory!

Quick and reasonably priced. And they are open on weekends…read more Keep up the great work!

I love convenience. This is why every year, I go to Ralphs in Brea to renew my auto registration at…read morethe automated DMV kiosk. They charge a small fee but I would rather pay that than to wait for my sticker in the mail. However, last week when I went to renew my registration, I realized I had to do a smog check in order to complete the process. W H A T!?!?! I panicked because I have never gotten a smog check before AND my registration was literally due in a days. I paid for the fees and went right on to Yelp to start my search. There were many places through out the SGV and OC around me, all had very reasonable prices. However, not all of them were opened on Sundays. I was already on my way to Rowland Heights to run some errands so I decided to stop by Smog Test Only Discount Center nearby just to see if they would accept walk ins. Thank Goodness they were opened until 2pm and only had 1 customer before me. The total time spent was approximately 30 minutes and total cost was $55 (accepts Cash, CC, Zelle). Maria helped me and she was SO nice! I am not sure if I may need another smog check anytime soon, but I do plan on referring friends and family here if they ever need one. Bonus: They offer hair cut services as well. Not sure if it is for me but I can totally see men getting a buzz cut here while they wait.

Place is great, they were able to take my car in without appointment right away. Relaxing…read moreenvironment inside with plenty of comfortable seating and big screen tv while you wait. Outside there's a bench with good music on great sounding speakers. Super friendly and clean establishment.

I Yelped for a smog test, being new to the area. Piedra's had a Yelp special and I was able to made…read morea same day appointment. Service was easy peasy -- quick! Arriving I wasn't sure where to park and left the car near the building. Upon walking in, the attendant got my information and my key and told me to have a seat. I opened my computer to do some work. Before I could get much work done the car was ready, with results sent directly to the DMV. Nothing fancy, but Piedra's got the job done. I'll be back!

It was quick and easy…read more I went during my lunch hour and still had time to grab lunch before heading back to work

Got my smog test done here. I waited maybe 25 min. The guy there is very friendly. He gets things…read moredone quickly and it is affordable. He explains everything to you and more which is very helpful so I would def recommend to go to him if you need a smog check.

Even though I live 20 min away, I always come here for smog checks because of the team and the…read moreclean, spacious location. It's calm and organized--unlike a lot of other places. Today was no different. I recently bought a used car and needed a smog check for the title transfer. Thankfully, Daren took the time to double-check and realized the vehicle had already been smogged when the previous owner renewed the registration in February. Since smog inspections are valid for 90 days, I was all set! If it weren't for his attention to detail, I would have spent money unnecessarily. Thank you to Daren and the entire team--you guys are the best!

I typically rely on Yelp to vet a business's reputation before visiting, and in hindsight, I regret…read morenot reviewing the feedback for this establishment sooner. I visited this location for a smog check, only to experience the exact issues previously highlighted by other customers. If you filter the one-star reviews for "front desk" or "Nicole," a clear and troubling pattern emerges. It is disappointing to confirm that these accounts are accurate. The issues I encountered include: Unprofessional Conduct: Nicole was dismissive and remarkably rude. When I attempted to discuss the service, she was entirely unwilling to listen or provide basic professional courtesy. Pricing Discrepancies: There was a blatant refusal to honor the original price quoted. She insisted on overcharging me, disregarding the initial agreement. What is most concerning is that the owner, Julie, appears to be aware of these recurring complaints, as she frequently responds to negative feedback. However, the fact that these specific behavioral and billing issues persist suggests a lack of corrective action. As a consumer, I believe a business is only as good as its management's willingness to address systemic problems. Based on my experience and the history of similar complaints, this business really got some serious problem. Also, if you live around the Chino / Chino Hills area and see this Nicole lady, please avoid her at all cost.

The quickest service with the best prices. With everything going up in price, this business has the…read moresame price.

This man is never friendly, and tried to overcharge me for 10 dollars for a fuse . Find another…read moresmog place For clarification on the response from the business owner. This is what occurred. The owner stated that my diagnostic port was not working and offered to fix it. Which was odd, because I recently went and had a diagnostic test done on it. So I say okay how much would that be? he stated 10 dollars. I agreed, then he found that the fuse was missing. He then said I'll give you the fuse. I say okay great thank you. So he proceeds with the test. There is no further conversation. My truck passes then he says 50 for the test, 10 for the fuse, 3 for using Apple Pay. At this point is when things go wrong. I tell him 10 dollars for the fuse? he says no 10 dollars for the KNOW HOW. I say the know how? He says yes would you have known what fuse it was. Which is very demeaning. I take pride in knowing my vehicle and am very hands on. I let him know that I didn't need his know how as I could have just replaced the fuse myself and brought the vehicle back. I felt taken advantage of and normally would just say okay and pay but I felt that it was wrong.

To avoid price conflict *MENTION ANY COUPON BEFORE SERVICE*…read more My family and I come here to get our smog check done for our car registration. Sam is quick and friendly. I paid $58 which includes the test and certificate. Last year they offered a $10 coupon. I missed this year's coupon of $8 off which expired 2/28/26. I swung by at noon today (Friday) there were 2 customers ahead of me. My car was serviced at 12:21pm and was done at 12:28pm. I paid cash as I believe there's a small fee if you pay with a card. There's a waiting area, but I don't know if there's a restroom. ( I didn't need to use it)

Walnut Smog Check needs to have clear coupon rules. Let me explain. I found this place on maps and…read moredecided to give them a call, no answer. When we arrived there, we didn't get a greeting in any way. We asked for a smog check and the guy (possibly the owner) stated that we will be next. While we were sitting around, I was browsing around yelp and noticed that this place offers a coupon discount on smog check. It states "must present coupon prior to service". When he pulled up with a paper for a signature, I mentioned this discount to him and he told me that I needed to show him that when I came in. It doesn't specifically state on the coupon that I needed to show the coupon when I come in. Plus, he didn't even start the service on my car yet. He was really rude about it after and told me he is losing money if he decided to give me the promotion and he can't just adjust the price after printing out the paper. There was also no apologies. If he wants to do business correctly, he needs to own what is said on the coupon and not just change it last minute. I just felt bad vibes throughout this experience and left with a sour taste in my mouth. I ended up paying almost $60 for this smog check which I could've done for cheaper at another place. The service was fast though. That was the only thing good about it. I will not be coming back to this establishment.