Fast courteous service. I arrived before the shop opened and had 2 people ahead of me. I only…read morewaited about half an hour for my Smog.

I was hoping to have utilized services from this location "based" on reviews that I read. But upon…read moremy arrival, I did not notice much activity at the location. So I proceeded to walk up to the door to only find out that the doors were locked., I viewed the business hours on the door, which reflected open. I then reached out to their "text" line nicely asking about their hours and was informed shortly after (with no greeting) that their machine was down for the day. And expected to be back up and running the following afternoon. So I had to take my business elsewhere.

Response time was quick. The service was quick and easy…read more Got my car smogged and processed in about 15 minutes.

I have taken multiple cars to them and it has always been a fantastic experience! They have taken…read morecare of our cars and made the Smog check process smooth without having to go to the DMV! They even were able to reprint my registration for me when I lost it!! Thank you for being so great!!

Amazing service! Love this business for doing all our smogs to all of our cars, that we have even…read morereferred our neighbors to come here. The Tech is quick and the doing the smog and efficient Please keep this business IN BUSINESS by reading my post and bringing in your cars to get your smogs done here!!!! We bought our Acura RSX Type-S, my Honda S2000 and our Ford Expedition and brought our neighbors brought their Jeep Cherokee.

If this place is close to you, it's a great deal. Ask for the Yelp pricing. It was $30 less than…read moreother competitors. I only found out by doing one of those Yelp quote requests (from various competitors, did it sheerly by accident trying to make an appointment at a prior place I went to). It's a no frills place. No appointments. Walk-ins only. We were lucky in that the person before us was just finishing up when we arrived so we didn't have to wait too long. The waiting area is a few fold-up chairs in a square concrete area that is quite sloped.

This place has five stars for a reason!…read more I was in and out before I was able to finish a chapter of my book. Hands down the FASTEST service I've ever experienced. Friendly, efficient, thorough. They had multiple employees ready to jump in to ensure your car is handled with speed. Clean facility. Location is spot on. Anything car related always riddles me with anxiety, but they took the stress out of this. I will drive the extra miles to return here for my smogs. Definitely will be recommending to friends and family members. THANK YOU!

It was $73 total in December 2025 with a $15 off coupon. It's near the Auto Center freeway exit,…read moreconducive to warming up your engine on the way there. There were 2 cars in front of us when we went, and they still got us out of there quicker than most smog joints. Waiting room is clean, if stark. There's a bathroom if you need it. But man, the music was SO LOUD. Like, the receptionist was yelling over the music, "OKAY, SIGN HERE!" and when she grabbed the remote, I presumed it was to finally turn the music down. Nope. She just changed it from '00s pop to contemporary country. There's an option for a tip at checkout, which always makes things nice and awkward, regardless of tip level.

Service was very professional, provided exceptional service! thanks for help getting my car smogged…read more.

I would not recommend these people there are overpriced and very rude when it comes down to Service…read moreI would never recommend any of my friends or family to come here at all. Spend your money elsewhere.

Told me one price after service he tried to change the price. Dirty business practices is not ok.read more

If i could give these guys no stars I would, I did a smog check for a 1999 corolla and they charged…read moreme $120 dollars. I have never seen a smog cost soo much. I have 6 cars and this is the first I have ever been smogged for $120. They are lucky that i had to get it done today other places were closed or else I would have never came to these robbers. I was robbed and not even at gunpoint and that's crazy

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!

This is a hidden gem! I tried to get a smog done at another local shop and when they couldn't take…read moremy car for the second time I jumped on Yelp to find someone who could get my car. My first call was to Walnut Creek Smog and they told me they needed to calibrate the machine and to come in an hour. I showed up and was greeted and they quickly got to work. They smogged my car quickly and were priced fairly. The employee who helped me was super friendly. They just won us over as new customers!

They finished my Star Smog certification in a timely fashion. Reasonable. I'll be back when my…read moreother car is due for a smog check.

Great service! Got me right in with a short wait and no appointment. They honored the $25 off…read morecoupon after check in here on yelp.

Stopped in to get my car smogged. They're always professional. There's a small waiting room with a…read morefew chairs, but honestly they're so quick there's no need to sit down. The price is fair as well. Overall, you should definitely go to Smog Guys to get your vehicle smogged. Great all around service.

Quick and easy - service great and at a good price. I go there with all my cars. No reason to look…read moreany further. Just had my 2005 Ford T-Bird smogged and again: all good.

This place is very honest they do quality work I would recommend to everybody let's book ahead…read morebecause they're very busy. It's not easy to find a good mechanic.

Extremely fast and friendly I will make this my smog spot from now on!!! Very good, thank youread more