Smogday

Yes. Smogday is licensed as a Test Only smog station. This station performs the smog test and issues the certificate. It does not do repairs, so a failed vehicle has to be fixed elsewhere and brought back.

Smogday is open Monday 9 AM to 6 PM; Tuesday 9 AM to 6 PM; Wednesday 9 AM to 6 PM; Thursday 9 AM to 6 PM; Friday 9 AM to 6 PM; Saturday 9:30 AM to 6 PM; Sunday 9:30 AM to 6 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Smogday accepts walk-ins, so you can drive in without booking ahead.

Smogday accepts Cash, Credit Card.

Smogday has held a BAR smog license since 2025. You can verify the license status at bar.ca.gov.

Smogday has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (650) 732-9732 for a quote.

Smogday does not take online bookings here, but walk-ins are welcome. Call (650) 732-9732 to check the wait.

Staff at Smogday speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Smogday is a Test Only station, so it cannot do the repair. You would have the work done at a repair shop, then come back for the free retest within 30 days. California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in Belmont are Golden State Smog Center (0.4 mi) and 5 Star Auto Service, Inc (0.4 mi). Both are listed further up this page with their ratings and hours.