In and out. Great price. Passed so I'm a happy camper. Service is good and friendly. Recommended.

Second time coming here. Had two vehicles to smog. Best place in the area for a smog. Honest price. Andy is a good guy who doesn't need to lure you in with a coupon when his prices are the lowest you'll find. Top notch service. read more

Called at 4:40 and said if he was still open, he said come now, when I got there he had a customer and I waited 20 mins, the car he was checking was 1999 or older car. So technical, nitpicking. read more

Great guy thanks for your help !!!! From Novato to you god bless for being honest and helping me out with my car

Andy was top notch! Had a car that hasn't run for a while with some battery issues. He told me what to do to help it possibly pass smog. Didn't charge me for that. I came back an hour later and was good to go. He's reasonable and is a stand up guy. Go to him for your smog needs, SERIOUSLY! read more

This review is long overdue. I used AO SMOG last year 12/31/2018 as my tags were due on the first. The owner was QUICK to respond back to my yelp inquiry and accommodated me within 30mins. I took my Corolla for a smog and was out with the quickness even with one person ahead of me. When my car needs a smog again later this year, I'm coming straight here! read more

Andy is the man! Such a friendly guy, honest, efficient, fast and fair. He has the best price in town and even better service. Our truck wouldnt pass because the battery had just died and had to he jumped so he told us how to drive it so that all would reset. We are passed and on our way! I reccomend Andy at AO smog to anyone in the Vallejo area. read more

It was a bit hard to see where this was located, but managed to find it. It's behind the gas station and bar, and in the same building as the mechanics. I got to the shop ~3:45pm on a Monday, with one car ahead of me, but they were wrapping up, so I grabbed a drink at the gas station, came back and the previous customers were leaving. I handed the tech my DMV paperwork, and moved my car up for him. It took ~15 minutes, in and out, charged as advertised. 10/10 will recommend and be back for any other Smog Checks! read more

Great and legit service! You can tell the owner isn't the type to pull tricks and unnecessarily charge you extra. He's straight to the point and thorough with the job. If you need a smog, definitely go here! read more

Great smog test! Called ahead on Wed. and they weren't busy. Headed over during my lunch break and handed it over to them while I ate my lunch in their waiting room. Quick, easy! And I made it back in time before my lunch was over! Awesome! read more

Quick, reliable service. I forgot my DMV paperwork and Andy was accommodating and put in extra work so I didn't have to drive back home to get it. There was no wait and prices were affordable. Highly recommend for STAR certified smog service! read more

Great service at AO smog. Very friendly and family values. Mr. Andy shows great care and concerns for your vehicle. I want time and punctual. If you have any questions or concerns call him and the deal is Always $29.95. I have been coming here for 6 years! Best service in town read more

Best experience I've had for a smog check. As noted by others, Andy is very polite, friendly and informative. I'll be recommending AO Smog to friends and family. read more

Andy is the best in the business and he doesn't just plug your car in the smog machine, he will meticulously check your car's undercarriage for any leak, i highly recommend this business!!!, keep it up man! read more

A trustworthy business. Thank you for helping me understand what was going on with me vehicle instead of just over charging me and taking my money like the last smog check place I went to. read more

The best smog place in the area! Quick and easy. The OG Andrew was very helpful. I definitely recommend

My boyfriend went in to do a smog check today and Andy was able to fit him in right away, he has the best price in town! Andy is very friendly and did the job in timely manner. It was my boyfriends first time there and will be going to Andy from now on, definitely recommend going to AO Smog! read more

Super quick, very nice to my dogs and great service! Highly recommend this place for a quick, inexpensive smog check.

The best smog place ever!! The owner Andy is very knowledgeable and honest. I brought in my car thinking I needed a smog and he notified me of the rules with new cars in California. He is really in the business for the customers, not to mention he has the best prices in town!!! Get to AO Smog and ask for Andy!!! read more

Service was A1! No wait! Andrew was courteous and professional and efficient! He also had the best price! I will definitely return in the future when needed, and I would recommend him to others. read more

I took my 2009 bmw 328i to get smog. Andy was very helpful and it only took 10 mins to get the smog and certificate. Will definitely come back read more

If you are looking to have your car smogged look no further! I had my car smog checked today at AO Smog and left with a smile. My experience couldn't have been any easier. AO Smog is best there is. The owner Andy is the one of the nicest people I have met. He is honest, experienced, professional and quick. He does the job right and for a great price! It is so refreshing to do business with someone like Andy. Don't get ripped off by others. Take my word and go see Andy at AO Smog. You won't be disappointed. I have taken my cars to Andy in the past and I won't go anywhere else. For those of you that are looking for Andy (formerly at Sonoma Smog) this is his new location and AO Smog is his new businesses name. Thank you once again Andy. read more

AO SMOG - Don't go anywhere else. You won't be disappointed! - Smog Check Stations Near Me - Vallejo, California

This place is the best I have ever been for a smog test. The owner was very helpful and kind. I had had to have my car jumped before I drove it in for the test, which can cause the car to fail if you don't drive it enough miles afterwards since that causes the car's computer to reset. He checked that out (think it's called an OBD double monitor) for free before even running the test and it turned out that I had run up enough miles to proceed safely with the test. The test was run quickly and I passed with no problems. When he saw that I had to jury rig the door to my gas cap to access it (a trick I learned on Youtube years before) since I didn't have money to spend on a repair I could work around, he not only showed me another way of doing it but actually gave me a discount on his already low fee. I think he could see I don't have a lot of money and felt sorry for me and so was generous enough to lower the price for me. I don't write a lot of reviews but when I find a business that goes above and beyond the call of duty like this, I try to help them out (and other people looking for their service) by posting one. AO Smog has my highest recommendation! read more

Andy at AO Smog is the nicest guy! I waited for one person and then he completed my smog test very quickly. Easily the fastest smog test experience I have ever had. Keep up the good work! read more

I rarely leave Yelp reviews but I had to for this place. I found this place on Yelp searching for Smog stations. Because of the r eviews and price, I had to check it out. I met Andy (who's mentioned in previous reviews) and he is very nice/friendly. Not only did he perform the smog test but he was checking out my engine for other problems. He happened to find a hose that was disconnected and told me about it. This guy is the best. I will be returning and sending other customers there as well. Andy if you read this, salamat Po! (That means thank you in filipino for those that dont know.) read more

If you need a smog test done, look no further. AO Smog offers the best price in town at $26.95 for vehicles model year 2000 and newer. Moreover, service is fast, efficient and professional, and owner/operator Andy is super nice and friendly. Such a pleasant experience. I highly recommend. Thank you, Andy! read more

This guy is the best in Vallejo everyone else was tryna charge me 75-100 by brother here only charged me $38 out the door and he had me in & out In ten min tops from now on he will always be my smog man I will vote for him as best smog place for 2018 read more

Stopped by here to get my car smogged on the way to work. Service was so quick and easy I was there less than 30 minutes. Probably less than 20. I checked out some reviews online and saw that this place has the highest ratings as well as the cheapest price. So I went to go check it out for myself and I definitely will be returning. I think I paid about $35 and I was in and out without an appointment. Great experience read more

LOWEST PRICE IN VALLEJO, FOR THE BEST QUALITY SERVICE! When I arrived, there was no wait! From the beginning Andy was super sweet and got started on my smog check really quickly. He moved with urgency and was able to hold a friendly conversation. I would definitely recommend him to family, friends, and all you Yelpers out there. I called the Top 10 smog checking places in Vallejo, and he was the cheapest, which includes him sending over your certificate to the DMV. read more

Came here today without an appointment and was out by 30mins with a person ahead of me. Super fast and efficient. Andy was super friendly and even gave me tips on how to get my registration sticker faster by going to AAA since I'm a member without having to go to the dmv line after noticing my registration is due in two days! Not only that, cheapest you can ever find in Vallejo! Will definitely be back in two years and recommend this place to my family and friends! read more

I called up few places before smog test. Nawabi autp recommended one next to Exxon and it asked for 80 which is ridiculous. I heard next town Bencia has going rate for 65. Anyways I found AO Smog through Yelp. Andy was nice and got rhis done professionally and thw best of all you wont find a better deal anywhere in town! Strongly recommend. read more

The owner was very helpful and kind. He was also quick, took my car right in and was done within 15-20 mins. Great price as well! Thanks again! read more

ANDY MADE THE WHOLE ADVENTURE WORTH IT !!! Took care of everything to my total satisfaction at a wonderful price. Recommended for sure. Signed T-MIKE, new Vallejo resident moved from LA and love Vallejo !!! read more

I needed a smog check asap. So I looked around for prices around my city which is richmond califas. but the prices seemed ridiculous & everyone i talked to were rude as hell. finally i found this place {thank god!!!}. even though the place was in vallejo califas it was worth the drive & paying for the toll to get here. the owner { andy } was a friendly, kind & courteous gentleman & his prices were the best in the bay area in my book. i recommend { andy } for your smog needs 150%. he had me in & out real fast. thank you {andy} once again for your great & friendly services. if i could give you 10 stars i would. read more

Andy is nice dude. I waited for 15 minutes. He got in and out in 15 minutes after that. Quick process and cheap and affordable. Will come back again! read more

Quick and thorough service! I went at 2:30 and Andy saw me right away. Andy is a very friendly guy and he ended up knowing my family in the Philippines! Glad I chose this shop to get my car smog checked! Price is very reasonable as well. Would definitely come back again! read more

I checked reviews on smog check stations & AO Smog has the BEST review & the BEST price. I gave them a call & I was told I can just come in. Sure enough, Andy is very nice, very professional, very kind & very helpful. I was very pleased with the service. Then, after the smog test was done, my car will not start. He went out of his way cheerfully to get the car started & running & he made sure it will not stop again before he let me go. ALL FOR FREE!!! WHAT A SERVICE!!! 5 ***** for Andy! Thank you very much, Andy. I will definitely recommend AO Smog check to my family & friends!!! read more

Andy was great very experienced knowledgeable about all vehicles service with a smile I'll be coming again and again thank you Andy for excellent customer service read more

Super quick and easy process. Lowest price I've seen for smog testing! Definitely recommend this place! I had something hanging down in the front of my car and he even helped me fix that! Awesome customer service! read more

Back again two years later as a repeat customer with the same 2012 Camry and the same smog report. Andy continues to excel in what he does and observed thorough process to complete the smog check. Since my last visit, Andy has gone on to earn 1st Place two consecutive years in a row in smog check by Solano County Times Herald. Congrats, Andy. It seems a third 1st place is coming this year. Till next smog check. read more