We are open 7 days a week: Monday thru Saturday (9am to 5pm) and on Sunday (9am to 2pm)
Fast, affordable and No Appointment — All in one visit
We’re Open 6 Days a Week to Serve You Better – Click Here to Check Our Hours
(Plus $8.25 cert)
— The price is only valid for Vehicles 2000 or newer —
We’re Open 6 Days a Week to Serve You Better – Click Here to Check Our Hours
Certified technicians providing reliable and efficient smog check services for all vehicles.
We test every vehicle — hybrids, diesels, out-of-state registrations, and gross polluters.
Quick, efficient service so you can get back on the road without delay.
Convenient hours to fit your busy schedule, including weekends.
Our expert technicians provide professional, courteous service every time.
Hybrids, diesels, out-of-state, high emitters—plus conventional
Smog Check in about 15 minutes
Clear estimates, honest recommendations, and friendly smiles
9:00 AM – 5:00 PM
9:00 AM – 2:00 PM
9:00 AM – 5:00 PM
9:00 AM – 2:00 PM
Clean Air Smog is a family-owned, STAR Certified smog check center proudly serving San Francisco for over 23 years. With more than 300,000 completed inspections, we’ve built a strong reputation for honesty, accuracy, and fast service. Our experienced technicians ensure every vehicle is thoroughly tested to meet California’s strict emission standards.
Voted the #1 smog check station in San Francisco, we’re thankful for our customers’ support and the many five-star reviews we’ve received across top platforms. We look forward to serving you again.
At Clean Air Smog , we provide quick, dependable, and certified smog checks for all vehicles. Our expert technicians ensure precise testing to keep your car compliant and performing at its best.
Get Your Smog Check for $56.75* + ($8.25 cert)
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