Fast, courteous, and good. I've been bringing all my cars here for smog testing with no problems or issues. 1997 through 2001 are my car years. Great service, great prices. Highly recommend. read more

Brought my 2003 Nissan Frontier in for testing. It was done very quickly and professionally. The technicians were friendly and courteous. What more can I say? read more

Granted I was the first customer of the day, but this was totally painless, very fast, in and out in less than 15 minutes start to finish. Two gentlemen that work there were great, professional and courteous. Get their coupon offline at their website, it'll send text straight to your phone, saved me $30.00, highly recommend this location. The old adage, early bird, worm etc. is still true today! read more

Easy appointment booking on-line and honored as well. Fast, efficient, and friendly service. I highly recommend this station.

It was easy to schedule the appointment online. Staff were very pleasant and competent with the paperwork for my smog check. Sent the information in right away. Honored a $20 discount coupon from the website. Will recommend them! read more

What a positive experience I had here, this being my 1st Time -a friend told me about her good experience including best pricing around!! I was signed in by Luis who handled my time there with excellent customer service. He handled a rude customer there with professional diplomacy and integrity which I appreciated and respect. I was grateful I came here, will recommend gladly and will return again. Thank You Luis and staff there, keep up the great job!! read more

I had a wonderful experience at 101 Smog! I called in to let them know I was coming in and when I showed up they were ready for me. I was out of there in no time with a great price. They run such a clean shop there, very well organized, fast, and no inconveniences. On top of all that, Jorge was incredibly helpful, providing me with good advice that saved me money. I'm definitely recommending this place to anyone I know in the Bay Area and I'll be back as soon as I need another smog test. read more

Jorge (the owner) is super friendly, we had to come back for one of our other vehicles to get smogged and he was busy but made sure to get us in a timely manner! Especially since it was a little warm out and I had my toddler with me! (Mom life). I remembered why we liked this spot because everyone there is super friendly and quick! Probably took them less than 20 min! Be sure to check in on yelp for their coupon!!! read more

What a DIFFERENCE, Professional and Courteous customer service can make. Kudos to Luis and Mark and we extend our personal thanks too. They were great, the price was great, Mark gave me some professional guidance prior to the retest. These two gentleman have outdone their competition and they have a new loyal customer. Our other car will be switched over to their service next year. Check them out, that's our advice. read more

easy, quick and friendly. I get both my cars smogged here and have always found it to be a good experience.

Very courteous service by Luis. I dropped in while they were busy, so Luis booked me an appointment the next day where I (my car) was taken care of in a timely and professional manner. read more

Luis was super nice and helpful! Excellent customer service! Thank you Luis!!!

This place is great and efficient! I was happy to stumble across this location and their coupon on yelp. The place is clean and had waiting area chairs outside (due to covid) ... the tech was very helpful and efficient. She had my car in and out in about 10 mins! I highly recommend 101 smog. read more

Fast and courteous service. Go online for a coupon to save $$. Small but efficient shop for a smog check. All smog checks available, a STAR Station..for older cars read more

9/11/19 I was in a huge hurry and stopped at 101 Express Smog with no appointment. Kelby must have sensed that it has been a tough week for this 65 year old woman, even though I said nothing. He checked his appointment book and told me he would fit me in and have me out within 45 minutes or so. I went to Starbuck's and headed back over. Kelby was working alone and dealing with walk-ins, as well as appointments. He was patient, kind, knowledgeable, and had the car done in less than 45 minutes. I highly recommend this smog station. Thank you, Kelby, for being so great on a day when I really needed your kindness and expertise! read more

Every two years, when I get that notice from the DMV that I need to get my car retested, I once again hunt for a place that can get my car in and out for a cheap price. I came across 101 Smog while browsing the area and spoke with Jorge on the phone who told me he'd be able to check my car on that same day. The two workers (Kelby and Jorge) were both very polite and courteous, and my car was tested faster than any other smog test station I've been to. Having two workers seemed to make the process a lot faster since they were testing two vehicles at a time. Very convenient and fast. Will come again. read more

Took my car to get a smog test at 101 Express Smog. The test took over 30 minutes and finally at the conclusion of the test, the desk attendant tells me that my car failed and I need to pay the $71 for the test. He told me that the year of my car has an EGR valve and they couldn't find it. Basically insinuating I removed it and wasn't in compliance. Well, the year, model and engine size of my car doesn't have an EGR valve. I told them this, but they insisted I was wrong. Neither the desk attendant or technician could show documentation regarding this or explain what an EGR valve does. More importantly, we're extremely rude and disrespectful when I was just trying to get more information and explain again that my car doesn't have an EGR valve. In addition, they told me I would have to pay again to have another test. As I was leaving, the technician walked out behind me and proceeded to mock me and laugh at the situation. I will never take any of our cars, or recommend this smog test station to anyone. These people are inexperienced, incompetent, extremely rude, unprofessional and totally ripped me off. I'll be reporting this to the Better Business Bureau as well. read more

I really appreciate the quick and easy experience I had at Petaluma's 101 Smog! After I left, they called to let me know I forgot my book there and held it for me until I could come back the next day. They were so helpful and gracious, thank you! My only comment is the only place to sit and wait is outside, and the weather was great this time -- but it would be nice to have someplace to go when the weather changes. Thank you! read more

Jorge was awesome! Friendly and straight to the point, with none of the shady BS you sometimes find at other places. I've had a few bad experiences in the past at other shops so I'm glad I've found a place I can bring my cars to every time I need a smog. read more

This was a great experience! The shop was very organized and the service was quick. The team was responsive and they offered honest advice that saved me real money. I drove over one hour for the smog check and am doing it again next week for my wife's car! read more

Decided to stop in and take care of my smog check last time I was in town. Heard about 101 Express Smog from a friend, and I had a great experience. Service was fast, effective and very reasonably priced! I usually dread taking my car in for a smog check every few years since it can be such a hassle, but I can't say enough good things about 101 Express Smog. Will definitely recommend to all my friends in the Bay Area. read more

Jorge was super friendly and helpful. Got me in and out of there super quick, definitely recommend this place.

My mom and dad came here together before I did and when I needed my smog done this is where they sent me!! Came in and made an appointment for Next day although they do take walk ins! service was great and when I got here they got right to it, in and out in no time! Thank you! read more

Simply great service. Everyone very friendly, professional, and efficient. Highly recommend.

We have a "not new" vehicle that had not been driven much recently. We put multiple miles on it before taking it to 101 Express Smog. It failed the test and they told us to drive it more. We did - over 100 additional miles. It failed yet again so they did a thorough check and suggested we take the car to our mechanic. We did, a repair was made along with an oil change. We took it back for the test. It passed and the price for the re-test was decent. Lots of back and forth but we passed the test thanks to their help. That fact earns them five stars. read more

Quick, convenient, and affordable. Have to get my car smogged every two years, but 101 Express Smog made it as painless as possible. The technicians, Kelby and Jorge, were friendly, and the shop was clean. Will be coming back again in another two years. read more

If I could give ZERO stars I would. I read the reviews, I printed the coupon, and I called. "Bring it in this afternoon"-they said. I explained I had work done on the car and REALLY needed to get the smog-to get the tags- in other words " don't screw me over!" Guess what? We got in the car, we drove straight there and WHAT??? Some pimple face kid says " Uh, all booked today- sorry". COME ON!!! BEWARE OF THIS SHOP'! They change prices at a whim- sometimes honor a coupon- sometimes not- BAD NEWS! Do not go here! read more

Easy peasy. I arrived on time for my appointment and they started the smog check immediately. In and out in 15 minutes, at a decent price.

Beware... I sent a friend down to get a smog on his 97 toyota tercel. He came back one hour later...happy it had passed but also $90 lighter in the pocket. I thought maybe he had failed the smog check and they rechecked it a second time NOPE...turns out thats whats they charge if you just walk in off the street.. They have a number of coupons running for $40+ cert, yet they charged him double the rate. I went in to speak to somebody and while standing there heard the guys tell three people three different prices on smogs on similar cars...??? Funny... read more

Let's figure they're getting one 'extra' star (if only Yelp allowed zero) because the guy was fairly quick getting my car smogged without appointment. Not the friendliest sort, but expedient. What is bad about this place is 1). they're expensive - with coupon smog was still over $50. 2). A retest if you fail is $41.00 - pretty bad considering how many places will offer one for FREE. That should be made clear UP FRONT but wasn't. That's not my idea of a fair or consumer-friendly business practice. I brought my car in recently and told the guy I thought I may have a code still in the computer. He didn't offer to check for that, as he should have (which would've saved me some time and their initial smog fee). It takes maybe three minutes to check that. Pep Boys and others do it for free. But then I consider their $41.00 retest fee and I see the scam. AVOID THESE THIEVES. I will not be returning. READ the (IMO wrongly) filtered reviews for this place. read more

I'm writing this review only due to how satisfied I was with their work. Being a licensed smog technician that worked in Petaluma; I knew the prices/tricks the shops in town used on customers who walk in blindly asking "How much?" I knew where to find their coupons, so I called them up and specifically asked them how much is the smog with coupon...OUT THE DOOR. For an '05 SUV the charge was $49.95 out the door with certificate. I called the other test only stations, even the ones I previously worked for. To my surprise, they wanted full price. So I head down to 101 to give them a shot, I've heard horror stories from customers/shops. They were organized, friendly, professional, and I have been referring all my family/friends and yes even a few previous customers from when I worked in petaluma (yes, I did hand out a personal number to nice customers in case they needed help with anything). Customers I see around town ask me where did I go. I just tell them 101 smog will take good care of them and tell them they found the $26.95 coupon. As stated before $26.95 does not mean out the door, but with all necessary + unnecessary fees it's still cheaper than the shops in town. read more

I am beyond upset. this is a rip-off smog place. Your telling me that my truck didn't pass the visual smog part because you can't understand what the manual says/shows and just figured you wouldn't pass the visual part?!?! are you f-ing kidding me!!! read more

I DO NOT recommend this place. Had a smog test done and failed they didn't write down why I failed. Charged me $30 for an EVAP test which they didn't even do. So $65 later and a failed smog test I have to go somewhere else. What a rip off. At the time of the failed test I was so shocked that I just paid the bill and left. That was dumb I know. Most places only charge $10 for an EVAP. Very arrogant guys working there. Never ever will I go there or recommend them !!!! We have to give a star but they DON'T DESERVE a star at all!!!! read more

Poor service. High price. They left grease stains in my vehicle. I would never do business here again. All of the other smog shops charge much less than 101 smog. If you go to any other shop in the area they will tell you that 101smog is a bunch of scam artists. read more

I've recommended this place to two people in person, and been here twice for two different cars - the guy is awesome, and, unlike other smog places in town, they can do a Saab (make sure you call first if you have an exotic vehicle). Make sure you go on their website and print out a copy of their $20 off coupon, I've not heard of anyone having trouble using it. They can generally do walk-ins, and I've never seen a line of more than two cars. While you're waiting, you might consider walking over to the Indian food place in the shopping center - they have a great lunch buffet. read more

$39.95 TOTAL for a smog??? This can't be true right? I had a Valuepak coupon at home and was told when I called in that I didn't need to go home and grab the coupon. When they made the appointment, they just added the coupon and the price was $39.99 TOTAL! Very professional. read more

Best Smog check in town Right off the freeway and easy to find.Dropped off my Chevy pick up in the morning to be smogged and it was done within the hour. Kelby was very helpful and got me on my way in good time. I recommend bringing your car here for a smog. read more

Called for an appointment and brought my car in later that day. All I had to do was mention coupon and Jorge took care of me. Was out the door in 20 minutes for about $55. Overall, it was easy and convenient. read more

HOLD THE PHONE; 12/2016 I have used 101 for all my cars for years. I have noted a progressively lousy ratings, including my visit this morning. What used to be a 5 star rating is now down to a 1+, rounded to a 2. Time to change providers. 2012 Gotta agree with the other Yelpers giving this establishment 5 whole stars. I went this morning, with my little coupon, they took me in immediately, honored the coupon, and I was out of there in probably 15 minutes. They were not overly friendly, but efficient and getting cars in and out with precision. I then registered on line with the DMV and they already had notice of my car passing the test. I would recommend it, but be sure to look for the "good" coupons, i.e. $26.95 plus the standard fees. BTW the shop was clean and orderly, and they have a flat screen TV for patrons (I watched Price is Right) 11/4/13 I lead a charmed life. I went there today, with no reservation. I produced my Valpak coupon, and in 18 minutes I was outta there, and the out the door price is $45. I drive a 4wd SUV, but no problem. 12/10/16 Ooops. No more Mr. Nice Guy. Today, the price went up to $79.95. WTH! I mentioned I had been there many times before (since 1998, no less), and they then reduced it to only $65. Previous years was about in the $45 range. Time to go shopping, I guess. read more

These guys did great. Got me in and out with a great price. Under new management. Very close to the dmv. I highly recommend there services. Zero wait time. read more