Went to get a replacement pink slip for my car. Everything went smoothly, besides the fact that it's 8x the price of just going to the dmv. Very nice people though. read more

Hello all this place is awesome I recommend it to all come by and check it out smogged my car today. Been here before and friends and family. Alfonso is very knowledgeable and helpful. read more

Piedra's Smog Test Only - Smog Check Stations Near Me - Walnut, California

They are very nice and everything went smoothly, it takes like only ten or 15mins, very fast and efficient and professional! Very recommended! read more

Came in on a Saturday afternoon 1 hour before the shop is closing, in and out within 25 minutes. Took my car here 2 years ago and it did not disappoint this time as well. I would say its very simple, fast and reliable. This is my go to smog test station around the area. Price is reasonable. Highly recommended for any who needs to complete their smog check. read more

Piedra's smog test is a Great place for a fast smog checks. Fast and friendly service. Great price as well.

I needed a smog check as my DMV renewal was up and it required a smog check. No wait time for me as I was in and out. Fantastic place and great customer service. Would go again. read more

Wonderful service!! Got the coupon online so the smog test was $38(including certificate) which was a decent price. I went around 820 with no line and it was done in 15 min! Recommend this place!! read more

Very quick and friendly service. Very professional. Place is nice and clean. Very satisfied

Good and fast service. I was in and out in a promptly manner. Would definitely recommend this place to anyone.

Fast and friendly! Very professional. Will be back! Appreciate the extended business hours too. Thanks!

They were quick, professional, and reasonably priced. We were in and out of there in under 30 minutes. To topped things off they even honored a coupon, we forgot to show beforehand. read more

They work very quick here. I liked that I didn't spend more than half hour waiting. Very friendly staff and big enough waiting room. I will say that the waiting room is very dirty. The floors are NOT clean and the chairs need to be cleaned also. I felt like I needed to wash my hands asap after leaving this place. Other than that their service is good. read more

These guys welcome you like family. Reasonable price. Be sure to bring yo coupon from their website. No appointments needed, but limited parking. Other customers are also nice. Must be because the place rubs off their kindness onto you. Been several years, always came back. read more

Elvia was the most helpful person ever. (she's learning Mandarin SHES SO COOL)!! I was super stressed out after losing my registration and trying to figure out my car title but she really helped me out. This place is amazing! Come here for all of your car smog and registration needs :) read more

The very best place for a smog test. You've got the warm, friendly, and welcoming Silvino proactively taking care of your needs. Service was quick, and can't beat the price. I'd be coming back for the next test! read more

I was in and out within 15 minutes, couldn't be happier, employee was very nice and accommodating. Smog check was done immediately paperwork was done , explained to me and I was on my way......... Super easy and convenient. read more

I needed to get a smog for my car in order to obtain my tags and Piedra's was very quick and very friendly as well, definitely recommend

This is our family's go-to smog check place! They have the best prices and friendly service! Also the waiting area is clean and air-conditioned. Make sure to download the coupon and also leave them a Yelp review! read more

Wrost service, charge away higher than other shop around and add miscellaneous charges.

Came to get a smog check. Elvia was very nice and helpful. She definitely looked out and helped with any promotions they had going on and gave me a good deal. It was my first time needing to get a smog check and she explained everything to me. I came in mid day around 1pm on a Friday and I literally was in and out, the service was quick and I wasn't waiting all day. A good experience, overall. I would recommend Piedra's and I would definitely come back again. read more

I highly recommend this Smog Test place! Alfonzo was so helpful and friendly. He went way out of his way to help me with my vehicle. The lady in the office is also helpful and friendly. I had such a good experience here that I will bring all my vehicles here in the future to be smogged! read more

Excellent service easy fast done on time . If you never come to visit try different all u love & come back again when you need to check SMOG thank you all of you. read more

Going in Sat morning @8:20, not much wait, 20 minutes in n out, reasonable price with coupon.

Overprice for the regular smog check $59.95 registration renewal fee $39,if you just need regular smog check don't go there(this is for star) and other places charge $19.95 for the renewal registration. read more

The Good: Quick service and open a bit later than others. I was working in the area and noticed there were a few smog test places in the area. However, I was probably going to be off work around 5:45 and most places closed around 5 or 6. Got there around 6:15 and I was the only one there. Quick and passed withing 15 minutes. The Bad: Price is kind of high. Even with the online coupon ($31.75 + $8.25), it came out to $40 total. I'm used to paying around $30 out the door at most places without the coupon, so it's definitely WAY overpriced here. The Ugly: Saw another review on here that said they handle the registration and give you your sticker there, and there is no charge if you're a AAA member. This is honestly one of the main reasons I went here, even thought I know they charged a bit extra for the smog. However, the guy working there said this was not true and I had to pay a $39 fee for them to handle the registration. This was a user review, so I can't ding them for this, but they probably should clarify on their yelp page that this is not true. read more

It's a small place, nothing fancy, but the people are nice and friendly. Their service is quick, and we are able to get the smog check done in only 15 minutes. We have been coming here a few years already for the best price (even without the coupon) and service. Well, maybe we will try to use their coupon next time! read more

Highly recommend this place for your smog check! Fast, friendly service! I was out of there in 10 minutes. This was my first time, and I will definitely use this place again next time my car needs its smog check. read more

Although Piedras is out of the way for me, it was well worth $40 out the door w/coupon from their website. Courteous, efficient and professional. I will definitely come here again! read more

I had a coupon for a smog check $29.75 + $8.25 (certificate) + 10 (evap test) for a total of $48. The guy who greeted me said that my coupon would not work and was up selling me to 59. The coupon clearly says what it is and i don't know why this guy would not let me use it. His english is very poor cause I just kept saying I need the one with a certificate. But he could not comprehend what I wanted. Just went down the street on lemon. so much easier read more

Great customer service very friendly. I needed to renew my tags and get a smog check done. was in and out and done in 15 minutes. Highly recommend this place read more

Went here for a smog check. Not only were they super fast but most importantly, the advertised price was truly the price. Certainly not the bait and switch I was subjected to by other smog check places. I will definitely go back and recommend. read more

So far I love this place, second time here, very fast in & out. I guess I go at just the right time. The guy there was friendly, said hi, fill this out, gimme your key, here...you passed, pay me, smiled and said thank you Don't know his name. They do not do any repairs, smog test only. This is a STAR smog test place. read more

Had a smog only done today. With a pennysaver coupon it was $38 out the door including the certificate. Wait time was 5 minutes for the tech to have lunch. Smog time 10 minutes. In and out in 15 minutes. Nothing to complain about there! pro: quick service they turned the big screen TV on for me to watch vending machine, free water nicely priced with a pennysaver coupon free retest no repairs on site cons: need a coupon overall: highly recommend with a coupon. I will get future smogs here. read more

Both times I've been here I was in and out in less than 15 minutes. Quick and easy service and the lady at the front desk is very nice.

Very nice staff and service was quick. They have a TV in the waiting area with comfortable chairs.

Very friendly! I read other people's reviews for $38.00 out the door, so I decided to come here. Just make sure you bring the coupon! We didn't know we had to bring a coupon but he was nice enough to do my car for $38.00 and said to bring the coupon next time. I took my car around the corner originally and it was going to cost me $50.00 and looked like an hour wait. But my car was done in five minutes! I really recommend coming here!!! read more

These guys are fast and friendly. Couldn't ask for a better experience. If you go on their website they even have coupons for smog test. The guy working added the coupon without me even asking. Great people. read more

Been here twice now & the service has been good. Fast test & out. I agree, the staff is not so friendly & a smile couldn't hurt anyone. But I guess since they get you in & out, that's all that matters. read more

This guys are the best, time and time again they do a fast efficient job, you are in and out in no time, no hasssles accepting their coupon either. read more

Came here this past Saturday morning 6-9, to get my smog check Star Certified was in and out within 15 mins printed out their coupon from their site. Paid $40 bux out the door, super fast hassle free nice clean place with waiting room and tv, would recommend this place for sure. read more