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101 Express Smog

3.7 (244 reviews)
Open 9:00 am - 5:00 pm

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Response time

3 hours

Response rate

100%

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Recommended Reviews - 101 Express Smog

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12 years ago

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7 years ago

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7 years ago

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5 years ago

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Adrian G. P.

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6 years ago

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8 years ago

Clean sitting area.. friendly staff and no hassle deals!!! Will come back when needed again!!

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14 years ago

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8 years ago

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9 years ago

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9 years ago

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15 years ago

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12 years ago

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6 years ago

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14 years ago

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14 years ago

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12 years ago

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13 years ago

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12 years ago

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8 years ago

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10 years ago

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10 years ago

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12 years ago

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13 years ago

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11 years ago

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Adrian G. P.

Thank you for your positive review. Adrian :)

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13 years ago

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14 years ago

New staff is knowledgeable and price seems fair with coupon.

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14 years ago

They are cheap but they don't offer a free re-test like most of the other smog stations.

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14 years ago

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10 years ago

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9 years ago

We have used 101 Express Smog for several years for all our cars and have had quality affordable service every time. I highly recommend.

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10 years ago

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12 years ago

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12 years ago

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14 years ago

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11 years ago

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12 years ago

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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… 

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

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100% bring your car here. I am so grateful to have found a…read morereliable, honest, efficient and local auto shop. All of these gents are so kind and helpful and don't try to upsell anything but what is actually needed to keep a car safe and on the road. Fair pricing, honest and good work. We take all our vehicles here and recommend this business highly.

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.

101 Express Smog - smog_check_stations - Updated July 2026

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