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    101 Express Smog

    3.6 (242 reviews)
    Closed 9:00 am - 5:00 pm

    Get pricing & availability

    Response time

    3 hours

    Response rate

    100%

    Services - 101 Express Smog

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    Recommended Reviews - 101 Express Smog

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
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    16 hours ago

    Great service, fast friendly and affordable. Allowed me to come in early for my appt. Thanks

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    Photo of Rew C.
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    7 months ago

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    Photo of Adrian G. P.

    Adrian G. P.

    Helpful 7
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    2 months ago

    Kind, honest proprietor, best prices in town, quick in and out experience. I've used 101 Express Smog twice and have no complaints.

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    Adrian G. P.

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    8 months ago

    This is the only place I go for my smog. He's great. Super timely. Communicated well. And the pricing has stayed consistent.

    Helpful 1
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    6 months ago

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    8 months ago

    I've been taking my vehicles here for service for years now. Always punctual and friendly service. Great value!

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    Adrian G. P.

    Our pleasure, thank YOU.

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    11 months ago

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    1 year ago

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    6 months ago

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    1 year ago

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    8 months ago

    Quick, professional and courteous! Reccomend this shop highly. Convenient waiting room.

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    Adrian G. P.

    It was our pleasure, thank you Terry.

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    1 year ago

    Was able to accommodate same day appointment, service was fast and affordable. Would recommend if you need last minute smog certification!

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    Adrian G. P.

    Your words and business are greatly appreciated!

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    1 year ago

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    Adrian G. P.

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    2 years ago

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    2 years ago

    Another great experience here with another quick in and out appointment getting my truck smogged!! Thanks again RJ

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    Adrian G. P.

    Thank you as well for being such a pleasure to work with!

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    2 years ago

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    2 years ago

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    Adrian G. P.

    You were a delight to work with :)

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    1 year ago

    Needed a smog check and got in and out very quickly without an appointment. We definitely recommend.

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    Adrian G. P.

    Thank you, It was our pleasure!

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    2 years ago

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    3 years ago

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    Adrian G. P.

    Helpful 0
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    2 years ago

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    2 years ago

    Helpful 1
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    2 years ago

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    Adrian G. P.

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    2 years ago

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    4 years ago

    Helpful 2
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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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    2 years ago

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    Adrian G. P.

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    3 years ago

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    3 years ago

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    9 years ago

    Helpful 1
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    2 years ago

    I have been going to this small family owned business for years. They are reliable, friendly and very reasonable!

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    3 years ago

    Accidentally made the appointment for the wrong day, showed up after their lunch with no appointment and they had me out in 20 minutes.

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    3 years ago

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    4 years ago

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    4 years ago

    Helpful 2
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    2 years ago

    I called and they recommended setting an appointment so I did. They were on time and finished fast.

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    3 years ago

    Helpful 1
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    5 years ago

    Business owner information

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    Adrian G. P.

    Helpful 1
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    Page 1 of 7

    Ask the Community - 101 Express Smog

    Do they still do coupons and where can I get one? I can only find Petaluma coupons.

    Hi Susan we absolutely do still offer coupons! To inquire about cost and appointments give us a call at 707-571-7664 and I’ll be more than happy to help. If we don’t answer in the first try give us a few mins before trying again or we will… Read more

    Don’t See Your Question? Ask Away!

    Review Highlights - 101 Express Smog

    That's an automatic fail!) 15 mins later, RJ was done with the smog check and everything was finished!

    Mentioned in 13 reviews

    Read more highlights

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    Sonoma County Auto Care - Sonoma County Auto Care. 518 College Avenue. Corner Of College Avenue And Mendocino Avenue.

    Sonoma County Auto Care

    (72 reviews)

    Single women stay away!! last year in march, I had a new…read morebattery put in at Sonoma county auto, and less than a year later I find out they put in the wrong battery, didn't register it (part of regular service when putting in a new battery), wasn't powerful enough for my engine and created more problems. In June, I had a cooling hose replaced and front breaks there also, but they didn't install the hose clamps properly and caused fluid to continue to spray all over my engine and under neath my car, by july ( a few weeks later) something was dragging under my car and I went in (kinda freaked out, seemed dangerous) but LouLou said they were at lunch and to come back in an hour- (a few people sitting in the office eating) .... so I came back in two hours BUT it looked like tHE mechanic and the Lady were leaving and the lady told me to come back the next MONDAY, very dismissive , but then the man got out of his car and ripped the hanging part out from my car and said it should be fine, .... I was stunned. It was 3:30 on Friday afternoon- and front desk girl wanted to go home- dismissed me again. NOW 2026, I got a new mechanic, of course..and the new mechanic said there are several issues including the battery and under my car there is a small hole in a hose which caused a slow oileak and splashed OIL under my car because there was no cover.... Leaving it exposed to road debris. My car is older but I have taken it in anytime I had the slightest issues. But now $5k later it's in worse shape than ever and would be thousand of dollars to clean and repair all these issues. My car is the shop again, Again because my battery- so Today- I called Sonoma auto to check the warranty on the battery they installed and got nothing but rude helpless answers from the front desk person. . Sh treats me like I annoyed her. Except, I'm a paying customer. Not there to make friends with LouLou. She's rude or she's just covering for the faulty services I received. Or both- sometimes, just taking reasonability for action is all a person needs to hear. But being meet with more dismissive behavior will only add fuel to the fire. Take responsibility, be accountable and treat customers like customers.

    I met Chris at his old shop. Helped me buy my old car back from him at a fair cost. The car has…read moresentimental value to me,and after the work was done,because I had already sold it to him, he let me get it back. They have been my mechanic ever since. No one else works on this car except Sonoma Auto Care. The best and fair.

    101 Express Smog - smog_check_stations - Updated May 2026

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