Mathilda Smog Check

Yes. Mathilda Smog Check 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.

Mathilda Smog Check is open Monday 12 PM to 5:30 PM; Tuesday 9 AM to 5:30 PM; Wednesday 9 AM to 5:30 PM; Thursday 9 AM to 5:30 PM; Friday 9 AM to 5:30 PM; Saturday 9 AM to 5:30 PM; Sunday 9 AM to 5:30 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Mathilda Smog Check accepts walk-ins, so you can drive in without booking ahead.

Mathilda Smog Check accepts Cash, Credit Card.

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

Mathilda Smog Check 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) 444-1812 for a quote.

Mathilda Smog Check does not take online bookings here, but walk-ins are welcome. Call (650) 444-1812 to check the wait.

Staff at Mathilda Smog Check 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.

Mathilda Smog Check 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 Sunnyvale are A1 Performance Auto Repair (0.4 mi) and Sunnyvale Discount Smog (0.7 mi). Both are listed further up this page with their ratings and hours.