Google reviewers rate SG Smog Check Center 4.6 out of 5 based on 253 reviews, noting that the owner responds to 96% of feedback. Customers frequently praise the station for quick service, reasonable pricing with available coupons, and professional staff who efficiently handle smog inspections. However, recurring criticisms in low-star reviews highlight instances of perceived rudeness, inconsistent scheduling policies, and disputes over failed inspection results where vehicles subsequently passed at other facilities.
Data from Google, last updated October 26, 2026.
Reviews from Google, shown as published (original wording, unedited).
Quick and friendly service
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!
Very professional, quick and easy to understand, great service
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!
Fast and friendly smog at 9am on a Sunday! Thank you!!!
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!
This place failed my mom’s car for blue smoke they said they saw. I myself nor my mom or sister had never seen this blue smoke since. We took the car back and no smoke was present and they still failed her and said they saw blue smoke. I took it to a place in Fairfield and it passed no problem with no smoke present. These guys are lazy and didn’t even put the car on the machine the second time. They just failed her. They are not trustworthy. I wouldn’t go here ever again
I bring all my vehicles here for Smog testing. There cost is reasonable and they make every effort to get you in and out.
They're rude! Beware!!
Stay away from this clowns, I call in to see if they can help me, they say yes, once I arrived they say they can't because they are too busy. They changed their mine in 10 minutes, just go around the corner there's a better place.
Quick and professional
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!
Great place to go for a Smog check. I was in and out within 15min. The lady in the front desk area had great customer service and made it easy to get in and out in a timely manner.
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!
I’m the type who calls around and hopes to get the best price. My partner, on the other hand, prefers convenience. It’s nice when both concepts come together. That is exactly what happened at SG Smog Vallejo. Omar was efficient, professional, and friendly (like give him a raise, expeditiously!) The price was $48 after the coupon and we were in and out with no wait on a Friday morning. Did I mention this is directly across from the Dmv? I just knew there was gonna be a surcharge for this convenience, but once again, they quoted me the best price over the phone and really exceeded my expectations. This will be my to go place from now on! Thanks, Omar.
Thank you so much for taking the time to leave us a 5-star review for your smog test service! We are thrilled to hear that you had a great experience with us. Our team works hard to provide top-notch service, and we are grateful for your support. If you ever need assistance in the future, please don't hesitate to reach out. Thanks again for choosing us!