They were friendly and the check was very quickly done. The waiting area was clean and comfortable…read morefor the short wait. I definitely recommend them!

Best smog experience ever. Fast, communicative and great service. And a great price! Highly…read morerecommended!

Had to lower my rating today by two stars, they opened late, staff said owner isn't taking a coupon…read morethey have on their website for older vehicles? The staff have never been super friendly and that hasn't changed. Value is ok but would have been better with $20 off

Definitely a bait and switch. Caution they will not honor the coupon on their own website. Service…read moreis quick.

Best customer service ever!! Super fast kind friendly ask for Benito!!…read moreI will be recommending Action Smog to everyone!! Thanks

A very good place to go for your smog test. The gentleman who runs it is honest, kind and…read moreefficient. He honors the $20 off coupon on the website. I had to go to a Star station this time to renew my registration. In calling around, this place was (with the coupon) by some margin the least expensive.

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.

Great place to go! Super fast with no appointment (took approx 10 min from the minute I drove in…read moretill I drove out!), great price and wonderful service! I will return when I need another smog and I highly recommend! So glad I was referred by a friend to go here!

Very fast! Very friendly, small garage in SR. Reasonable prices. Would definitely go to again.read more

Coogler's did an outstanding job in identifying and repairing the smog-control system on my older…read morevehicle. Their service was professional, transparent, and courteous. They provided me with a detailed estimate for the work and followed up with an illustrated report showing all the stages of the work upon completion. The repair bill was fair and reasonable. Jeff, a service manager, answered all of my questions carefully and fully. Gary, a service technician, repaired the vehicle, which now performs better than it has since I first got it as a used car. I very highly recommend Coogler's for all your automotive maintenance and repair needs.

Very easy to make an appointment. Very clean inside and a beautiful little patio to go eat outside…read morewhile you wait for your car. A place to play video games inside if you needed to entertain your kid. Fast and efficient. It was a great experience.

Absolute best. Everyone recommends this place and now I know why. If you have a nice car that you…read morereally like it will be in good hands while getting smogged here. A+

Rosland Smog has been Hahn Automotive's go to smog shop for years! They are the best in service and…read morenot a hassle at all!

This place is truly amazing! First off they were the lowest priced Smog check in Sonoma county…read more Second they dont need a reservation , though they do take them. I popped in later in the afternoon when it was convenient and they Gladly took me in all with a big smile. Only had to wait maybe :20 minutes to get a tech on my Volt and the actual test was only a few minutes-maybe :15. Third as many have already written they have a super nice waiting room complete with free coffee, chocolate, pop corn, cup O noodles, TV and big comfy chairs and a lovely tropical fish aquarium complete with hermit crabs. They sent all the required data directly to DMV. Easy convenient location. I am so happy with them! I highly recommend Hensley's and will continue to use them. A+

Friendly front desk people, very nice waiting room with Phone charging station. Payment link and…read moresmog cert was immediately sent to my phone, as soo. As the test was done, so writing this review took me longer than making payment and getting my smog cert. Good looking female smog technicians talks very good about gender equality. Overall, I recommend this place, price is competitive. Proffecional Service.