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    101 Express Smog

    3.2 (162 reviews)
    Open 9:00 am - 5:30 pm

    Services - 101 Express Smog

    Smog check

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    Leah S.

    We are a military family and we move around a lot. Every state has different requirements for registering your vehicles and making them road safe. California requires smog inspections in order to register your vehicle and so after spending our morning at the DMV we found ourselves here. I had called a couple other smog places but they were not very helpful to me. I think this was my third call and the lady on the phone was friendly and helpful and told me to bring the car over right away. When we arrived, it was just her and one technician and there was one person with an appointment ahead of us. We signed our car in and then walked down the row of stores to grab some donuts as a thank you for them getting us in. When we returned, the car was ready to go and they gave us their yelp discount which was about 50% off. We were thrilled about their prompt service, their friendly demeanor, and their pricing. As we got to talking with the lady behind the counter, we found out that she was not only military affiliated but also affiliated to submarines like us. Such a small world! We absolutely will be bringing our other car here this week to do its smog test in order to register that car as well.in fact, I already have an appointment for tomorrow to do just that. In the future, I will absolutely be returning here with the great service, the military friendly team, and the convenient accessibility right off of the freeway in the northern part of Petaluma. What a great way to lower the stress of day spent at the DMV, with something as convenient and personable as this smog inspection business! Who would have thought?!

    101 Express Smog and me in the shade 90+ degree day, Luis finishing smog check on my van. Great work Luis, thanks!

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    1 month ago

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    3 months ago

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    5 months ago

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    2 years ago

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    2 years ago

    Business owner information

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    6 years ago

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    2 years ago

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    2 years ago

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    2 years ago

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    3 years ago

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    3 years ago

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    3 years ago

    Went for a smog check. Quick friendly service! Close to my work so a no brainier for me.

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    4 years ago

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    3 years ago

    Super easy and quick. Highly recommend. Great location. Great service. The app demands I keep writing.

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    3 years ago

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    4 years ago

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    7 years ago

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    7 years ago

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    3 years ago

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    3 years ago

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    3 years ago

    Excellent service with a smile. Jessie was very pleasant and helpful. The service could not be better. I will return as needed.

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    4 years ago

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    5 years ago

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    3 years ago

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    5 years ago

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    3 years ago

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    3 years ago

    Reliable and quick smog checks. Got my registration tags for a twenty bucks fee. Worth not having to deal with DMV

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    Page 1 of 5

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    Review Highlights - 101 Express Smog

    On top of all that, Jorge was incredibly helpful, providing me with good advice that saved me money.

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    Super Sonic Smog - Best Little Smog Shop in Town!

    Super Sonic Smog

    (78 reviews)

    Well after letting one of my cars sit for a year with a dead battery, I finally put in a new…read morebattery and then needed to get the car smog (yup, the registration came up and it required a smog). I called my usual place which is opened on Saturdays (more convenient for me so I don't have to take time off from work) and spoke to the person who answered the phone and asked to make an appointment. Well I was surprised that it wasn't the place I called but another shop as my usual spot forward their phone to another business due to a fire they had. This person said I could take it to them or take it to Super Sonic Smog but neither took appointments and were only opened Monday through Friday. I thought about it and went to Super Sonic Smog the next morning shortly after they opened and there was a line of cars as well as the cars they were working on. I happened to see Joe who does some of the smogs and asked how long he thought it would be and he said at least an hour. Well I couldn't wait that long as I had to get back to work so he said to come by around 4:15pm that same day. So I went to work and asked my boss if I could leave at 4pm to get the car smogged and he was fine with it. I left and got there about 4:10pm, and then waited. Randy ended up working on my car and I ended up waiting longer than normal smog should take due to the fact that the vehicle before my car had some issues so it took longer. Pricing was very reasonable and they do charge a convenience fee for using a credit card, though I didn't know it until I saw my receipt as there was no signage in the business stating that they charged a fee. Services was great and I will definitely take my other car here when it's time for a smog.

    Marc in the office is hilarious. I'm dying laughing at people complaining about him. We had the…read morebest time. Looks like other people don't get our sarcastic sense of humor lol. My smog took less than 15 minutes?! Crazy. Think the owner greeted me when I first got there, what a gem. Next time the DMV slaps another smog requirement on me I'll be back. Thanks for making this such a headache free experience despite my showing up 1 hour before close on a Friday. (Sorry!) FYI no reservations here, just first come first served.

    101 Express Smog - smog_check_stations - Updated May 2026

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