My husband and I both took our cars here for smog checks on different occasions. Zorik (I hope I…read morespelled that right) was so nice and worked really fast. I only spent about 10 mins, if that, from the time I pulled in to the time I left. Pricing is fair. Would recommend!

Seamless experience, drove up at 8am on a Saturday morning and was ushered right in. I've been…read morecoming to this convenient location for years and I feel like I've always received superior customer service. Check their website for coupons! Even without a coupon I feel it's worth my time to visit Cal Smog when required by the DMV. Clean, no frills, in/out quick!

Super easy and quick - no appointment needed. Probably in and out within 10 mins. Current price for…read morea smog check in April 2026 is $60 cash ($65 credit). - Saturday hours are great (8am-2pm) - Enter into the garage area from Greenwood St (not Walnut) - They do a few other services like oil changes The only other thing to highlight is that there is a small fee to retest if the car fails the smog check. You can share with them that you are not sure if the car will pass smog and they can try to do a few basic things to gauge right off the bat which we appreciated. Other places may do re-test for free if you do the initial smog check with them (but possibly higher in overall price) so keep that in mind.

Highly recommended. Honest and quick. My son took his civic over to smog registration - done in…read moreless than 15 minutes. He said they were very friendly and they charged him what they quoted me over the phone.

My 2015 Nissan Rogue was due for its Smog Check. My check engine light was on when I brought it in…read more I had the light checked at auto supply store and they said that the oxygen sensor was bad. Arthur looked at the printout paperwork and said that that may not be the problem. He popped the hood and he found the problem within less than a minute. One of the hoses was not connected to the engine and reconnected it. After another diagnostic check found that there may another issue but suggest that I drive a few miles to reset the emissions computer. After I drove the recommended miles I had the car smog check and it passed. I've brought in a number of cars we've had to Arthur. He is very honest, friendly and knowledgeable. I highly recommend anyone to bring their vehicle to this establishment. Definitely 5 stars.

I can't stress enough how amazing Arturo is at Walnut Smog & Repair. Always so thoughtful and…read morehonest, having car issues can be so stressful but the moment I drop off my car I know I'm in good hands. If you are looking for a skilled mechanic with integrity who always communicates your options on top of a speedy turn around with your vehicle, look no further.

Vick at Express Smog Test Only Center provided outstanding customer service from start to finish…read more He was prompt, friendly, professional, and incredibly efficient. The whole process was smooth, stress-free, and much faster than I expected. Vick went above and beyond to make sure everything was handled with care and explained clearly. Without a doubt, this is the best smog test service in town. It's rare to find this level of excellent service these days. I highly recommend Express Smog Test Only Center if you want honest, reliable, and top-notch service!

I picked this place because of the stellar reviews and everyone was right -- Vic is the absolute…read morebest!!! He explains everything very thoroughly. He's easy to talk to, respectful and efficient l. My car failed the first time because of a memory issue from a recent repair. He gave me clear instructions. I made an appointment to come back and he helped checked to see if there were any glaring errors before retesting. Ended up passing which is great! Def come here to do your smog checks! Vic is your man

EXCELLENT service! This is the first year I had to get a smog test for my car and wasn't sure where…read moreto go. Hill Smog is just down the street and gave me the best quote of other smog testing facilities in the area. Quick response and quick service :) I was in and out. 10/10 would go back!

No bullsht, just straight business highly recommend. Got in got out super fast and nice staff tooread more

Ara was very informative and responsive. Friendly and checked my brakes when I came in for a smog…read morecheck.

Took my GX460 in for an oil change that I needed to get done last minute due to a road trip I had…read moreto make the next morning. The guys there were super awesome, trustworthy and professional. I love my truck and I would trust these guys at this shop with it (which is saying a lot).

Gary was so sweet! The smog test was quick and easy. In and out in less than 10 minutes. And very…read morereasonably priced!!!! I will do business here again!

Gary is knowledgable, courteous, fast and efficient. I recommend his service and plan on…read morereturning. Great job!

I had a great experience at Vista Test Only Center. It was pretty busy when I arrived, but the…read morestaff kept everything moving efficiently and communicated clearly about the wait. What really stood out was their customer service--they even offered me a cold bottle of water and a mini pastry while I waited, which was such a thoughtful touch. The technicians were professional, friendly, and had me in and out as quickly as possible despite the crowd. It's easy to see why they've built such a strong reputation for smog checks in Pasadena. If you're looking for an honest, efficient place with genuinely kind customer service, I definitely recommend Vista Test Only Center!

This is an exceptional place! Sam is so friendly and helpful and he made the task easy. I will…read morealways return here because of his great service!