To avoid price conflict *MENTION ANY COUPON BEFORE SERVICE* 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) read more

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Walnut Smog Check needs to have clear coupon rules. Let me explain. I found this place on maps and decided 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. read more

Walnut Smog Check - Smog Check Stations Near Me - Walnut, California

I needed to get a smog check for my car, and stopped in. It was early in the morning so I was probably their first customer of the day and there was no wait. Mr. Mohammed was friendly and quickly inspected my car in about 15 minutes. Save a few bucks and pay with cash and look for the $5 off coupon on their website. Credit cards have a 2.75% surcharge. I paid $53 for my smog check. read more

Walnut Smog Check - Coupon available on their website. - Smog Check Stations Near Me - Walnut, California

Under new ownership but always a great experience! We had some issues with EGR error codes. These folks advised on how to get it to register correctly by driving the vehicle at a steady speed for a few minutes and that did the trick. We were able to pass smog without any issues. read more

We took our SUV to do smog check and this place is nearby us. We got there around 10:30 a.m. and there were 2 customers ahead of us. It's $58 with certificates (sent to DMV electronically) and I showed the coupon on Yelp and the owner gave us $10 off, $48 out the door. It was fast and easy and we want to support our local business as well. Friendly service and it was done in less than 20 minutes. read more

Walnut Smog Check - Smog Check Stations Near Me - Walnut, California

Super easy! Three cars were ahead of me. Got in & out in less than 45 min. Took my dog on a walk while waiting for my smog check to be completed. The waiting areas, front and rear, have a lot of chairs and a nice breeze so it's cool on a warm day. The location has a bunch of other car related shops. I used a $10 coupon from their website, which was an awesome value. If you decide you visit, make sure you show them the coupon beforehand. Lots of signs notifying customers of this rule. read more

It was a breeze in park, was there no more than 15 minutes. The person was very cordial. I'll def be coming back. read more

Walnut Smog Check - Outside of the business - Smog Check Stations Near Me - Walnut, California

Came by for a smog check and I was informed there was a couple of cars before me. Nice owner with fast and efficient service. I would come back again. read more

The service is great and very fast. They were a able to get me in last minute and they were very respectful.

prompt service. I got smog checked. This is my second time around. It is near by where I live. It is convenient.

Muhammad was great! Needed to do a fast smog for vehicle registration and the service was very fast and efficient. Highly recommend !

Great place and service. Fast and repliable read more

Came here to get a smog check as it's the most competitive price near me, AFTER you use the coupon available on Yelp. If you do use it, make sure to show them the coupon first! Service was friendly and prompt. There was a couple of people ahead of me, but when it came to checking my car it took all of five minutes. They have an indoor sitting area where you can rest while your car is being checked. Would come again. read more

Pretty good service. Came in for my smog check (make sure to bring your notice) owner was very quick and takes the $10 coupon (make sure to show them a photo of it, you can get it from website). Total for me came out to be around $49.32, paid with credit card so they charged me an extra 2.75%.... read more

Please put up a Banner upfront that says "Mention the $10 off when you Walk in" I walked in, gave him my keys, went to the office, waited for him to come back. When he showed me my estimate I asked about the $10 off, it went downhill very fast at that moment. I don't understand the need to make the customer upset. Other than that, it was quick and done in 15 min. read more

Quick & straightforward service! Thanks to this place my car was ready to be registered. Took no more than 10-15 minutes cuz nobody else was in line. read more

The owner is very nice and the wait is very short. Easy in and out. Will come back again

I had a great smog check experience here! I called for a quote, and the price was the lowest I found close to home. There's a 10$ Yelp check-in coupon. No appointments are required, and I was informed that it would take 15-20 minutes. I arrived at 5:00pm on Friday, and there was no wait. The gentlemen were very kind and finished with my car in about 10 minutes. The waiting area has a few chairs and it was a little toasty without AC, but my car was ready quickly, so it was fine. In and out in under 15 minutes! read more

Went in a couple weeks ago. Service was great! They were very fast and it was an in and out experience. Very affordable especially with the 10% off from their coupon. Highly recommend. Be sure to carry cash they charge for card but not excessively. read more

First off I want to say the help I got from this smog spot was amazing the guy is straight forward but a really good person and kind hearted he helped me the best way he could and that means a lot the quality and customer service was perfect. read more

Walnut Smog Check - 2006 mazdaspeed 6 - Smog Check Stations Near Me - Walnut, California

We moved to California recently and had to have a smoke check for our car. As a newcomer we selected Walnut Valley Smoke Check based on the positive reviews. It turned out this was the right choice! Sam answered our questions in detail on the phone and welcomed us with brief and clear instructions. He took our car in immediately and finished the test promptly. When Sam handed over our certification, he also provided some helpful information about car registration in California. We were impressed with Sam's knowledge, experience and service. This smoke check event was a very pleasant experience! Thanks Sam and Walnut Valley Smoke Check! read more

Came back to this smog shop after it was previously closed. The new owner was friendly and got my car smogged within 30 minutes. Will definitely come back! read more

Walnut Smog Check - Car - Smog Check Stations Near Me - Walnut, California

I came in during lunch break on a Monday after reading reviews. Great service, very fast, $10 discount with coupon, and all the required paperwork is provided with e-send to DMV! The gentleman said his name was Sym (spelling?) who did the smog check. Thanks so much for your great work. It shows approved on the DMV status page. read more

Been coming here for a few years for my smog checks. Reasonably priced especially with the coupon on their website. The customer service is a lot better under their new ownership. I had a good experience recently with Sam. He was very quick and professional so I wanted to give him a shoutout. Thanks for the great service! read more

I highly recommend Walnut Smog Station! There was no wait midweek at lunchtime and I was in and out. The waiting room was clean and the price was more than fair especially with the coupon from their website. read more

Quick service. I was a morning walk in and was out in what felt like 5 minutes! Thank you Walnut Smog. read more

Amazing & quick service. Was helpful, friendly & informitive! Thank you! I will definitely be back in all my future smogs. Muhammad was awesome! read more

Walnut Smog Check - Walnut smog check - Smog Check Stations Near Me - Walnut, California

Quick and easy. All done in less than 20 minutes. I would recommend this establishment

I do recommend this place . good customer service ( fair price) $ The owner ( slameh) he is a good man knows what he's doing Thank you so much read more

Quick service and professional and reasonable price. This was our second time here. No appointment necessary first come first serve.

Got my Smog done on my lunch break. Was in and out in 15-20 mins. Reasonable price and friendly service.

Got here at 8:30 on the dot, the gentleman tells me 20 min. 10 min later we are on the road great service can't complain happy Friday. Very helpful and nice thank you for the service. Keep up the great work. read more

Smog check service was quick and the gentleman was professional and nice. Fair price, and stayed consistent with the prices shared beforehand over the phone. read more

I called them in the morning to get my smog check done. My car is an older model, and required a STAR inspection. The gentleman on the phone let me know the price ($48 with coupon) and how long it would take (15-20 min). The waiting area was clean and comfortable. There were 2 cars before mine, but they completed the work quickly. I probably waited 20 minutes for my car to be done. Bring cash to avoid a surcharge. read more

Walnut Smog Check - Smog Check Stations Near Me - Walnut, California

I called this location and they assisted me right away over the phone. gave me information before I got there once I arrived. He was waiting for me. Completed my smog check in less than 10 minutes and really great price. I recommend this location. read more

Change of ownership. I should have trusted my gut. Made an excuse for not passing, says my computer was reset when I only recently got an oil change not battery change. Says I have to drive 100+ miles when I use this car everyday. Paid $50 and another $20 to retest. Will not return for a retest but they already have my $ so they are winning. read more

I called the day before I arrived. The owner was very courteous and he explained the process very well. He had a $10 coupon available on his website. When I arrived, there was one person ahead of me. The owner explained the charges again; and gathered my DMV documents. My car's smog check was completed very quickly. I was treated with care and respect. I would highly recommend this business. read more

Amazing staff and the best and fastest smog test you can ever make. And the price is amazing.

Best price even before their online coupon. In and out fast. Even with one car ahead of me, I don't think I was there 15 minutes. Most impressive was how friendly, kind, and courteous the gentleman who helped me was! Great place- I will be back next time. read more

I called earlier today to find that I didn't need a reserved time to come in. When I arrived there was one car being worked on and one waiting. The owner was VERY pleasant and respectful and told me exactly how long it would be. HE WAS RIGHT ON! My car only took about 10-15 to finish. Considering the day was 100º, the owner was still very nice and considerate and kept me informed of the progress. Don't forget to locate the $5 coupon he provides on his website. Another perk for this business. I would definitely return upon receiving my next smog check from the DMV!! EXCELLENT. read more