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    A1 Smog

    4.9 (193 reviews)
    Closed 8:00 am - 4:00 pm

    Services - A1 Smog

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

    17 More Services

    Auto noise diagnosis

    Tire Pressure Monitoring System diagnosis

    Auto no-start diagnosis

    Auto vibration diagnosis

    Auto diagnosis or inspection

    Auto pre-purchase inspection

    Auto maintenance

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto HVAC repair

    Auto steering and suspension repair

    Routine automotive maintenance

    Smog check

    Transmission leak inspection

    A1 Smog Photos

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    Recommended Reviews - A1 Smog

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    This is my 2008 Lincoln navigator with over 300,000 miles on it. Jon and his guys keep it driving like new!
    Dan H.

    I have been using JOHN and his guys for almost 3 years now. They have worked on all of my vehicles. Most recently my 2008 Lincoln navigator that has a little over 300,000 miles on it. The interior is immaculate because all the driving has been highway driving with only me as the driver. But it needed some front end work from an alignment standpoint and a little loose in the steering and I took it in and left it with John and they just don't give up. I will just put it that way they will fix whatever the problem is if you give them enough time because they are a patient crew I must admit that. But if you give them enough time and let them go through and change the necessary parts and sometimes it ends up being the smallest things that make something work correctly, but they are just great and I can't say enough good things about Jon and his team!! You can trust them with any vehicles.

    Pricing
    Esther C.

    I got a smog test here and my windshield wipers replaced. It all took about an hour to complete when I came an hour before closing. This store front is a little hard to find but it's tucked behind another storefront. Their wait room is really nice and calming. Dude, the dog, is cute but his barks were sometimes scary. They have a coupon on their website but you cannot stack coupons. There are coupons for the smog test and windshield wipers but I could only choose one coupon for one service. Hope this all helps. Good spot in Davis.

    Carlos P.

    As always. They get you in and out quickly. Thanks for the great service!!! If your in Davis, make this your go to Smog Shop!!!! Hint. Go to their website to get savings.

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    3 years ago

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    4 years ago

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    4 years ago

    Getting my vehicles smogged is a breeze here..no bs no upsells..in out and done. Thank you Jon for the awesome service.

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    3 years ago

    Jon is amazing every time I come in fast service super friendly I most definitely will come back in Thank you

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    4 years ago

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    8 years ago

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    5 years ago

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    6 years ago

    Always the best service, and honest people. I come here anytime I need a smog check. Quick, easy, and honest.

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    8 years ago

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    9 years ago

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    4 years ago

    Very professional company and decently easy to get scheduled. This is a small business I'll keep going to as long as I live in Davis.

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    7 years ago

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    7 years ago

    Great service, super quick, and the owner has an adorable dog that greets you. Would absolutely recommend!

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    5 years ago

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    12 years ago

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    Page 2 of 5

    Ask the Community - A1 Smog

    How much does an oil change cost?

    79.99+waste and tax. 5Qts Synth.

    Do they offer repairs if a car fails the smog test?

    Yes there is a full repair shop on site which is great one stop shop.

    Don’t See Your Question? Ask Away!

    Review Highlights - A1 Smog

    Will take my car for service there from now on.

    Mentioned in 11 reviews

    Read more highlights

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    The Smog Connection

    The Smog Connection

    (174 reviews)

    I called ahead, and while they allow walk-ins, an appt was recommended. I was able to secure one…read morefor later in the morning. I planned to run an errand and head straight over, unfortunately I left my paperwork at home. Not knowing they could do the testing without it, I ran home and realizing it was already time for my appt, I called to let them know I was running late. Thankfully, the next appt was already there, so we were able to basically switch spots (them taking the current time that had been mine and me taking theirs). The woman in the office was so helpful and kind about it! I got there before the updated appt time while the vehicle before me was finishing up testing, and we were in and out like a flash after that! Very friendly, fast flexible service, and great pricing. All in all, as painless an experience as smog checks can be, would recommend!

    I have been going to Smog Connection, Timm is the owner, for longer than I can remember. My car is…read more20 years old and every time a smog is due, I call Timm. I only have had one problem and it was a bad gas cap. Timm used a cap he had, told me I had to replace mine, and my car passed with flying colors. His price is reasonable and I am usually in and out of his shop in under 30 minutes. My only complaint is that he is a SF FOURTY NINERS fan. Being a RABID & DIEHARD GREEN BAY PACKER fan, you can see the problem! Thank you Timm for taking care of my car for the last 20 years. I will continue to support your business for as many years as I have left.

    University Imports Automotive - Front door... cool graphics

    University Imports Automotive

    (73 reviews)

    Back for another lap. Had to revisit another projected repair, because it was time. My Audi is old,…read moreafter all. Stuff fails. That's just how it goes with machines that have moving parts. Chris delivered, AGAIN! AND, Chris, who has an abundance of integrity is the BEST at sleuthing, especially if there is a mysterious symptom your ride is presenting. DO. COME. HERE.

    Called on a Thursday for Big Bertha. She needed a cumbersome VEHICLE SAFETY SYSTEMS INSPECTION per…read moreCA DMV requirement. Formerly known as the Brake & Lamp inspection. I spoke with the owner who was very polite and informative. He made sure I knew what was expected before I brought her down. He really did not have to go over it with me as it is the customer's responsibility to know. However it was clear he did not want me to be surprised nor disappointed. He got Big Bertha in the following day!!! We were able to drop her off the night before and leave the keys in their locked mailbox for after hours. The parking lot is very well lit. This came in handy as we had to do an impromptu last minute adjustment to one of Bertha's side markers. On the day of the inspection they were able to answer my typical "what is this thingy for?" on Big Bertha. They completed the inspection and she was ready just in time for us to race to the DMV and complete the paperwork before the weekend. We drove from Fairfield to Davis for this service. When trying to schedule it locally we told they only do one a day and were scheduled a month out. It was well worth the drive to Davis, for the price, customer service and nearby tacos. Would not hesitate to recommend this shop to anyone and look forward to doing business again.

    A1 Smog - smog_check_stations - Updated May 2026

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