Ace Auto Repair & Tire

Yes. Ace Auto Repair & Tire is STAR certified with the California Bureau of Automotive Repair, so it can test vehicles the DMV directs to a STAR station, including gross polluters.

No. Ace Auto Repair & Tire is licensed as a Test & Repair station. This station can run your smog test and, if the vehicle fails, diagnose and repair it in the same shop.

Ace Auto Repair & Tire is open Monday 7:30 AM to 5:30 PM; Tuesday 7:30 AM to 5:30 PM; Wednesday 7:30 AM to 5:30 PM; Thursday 7:30 AM to 5:30 PM; Friday 7:30 AM to 5:30 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Ace Auto Repair & Tire accepts walk-ins, so you can drive in without booking ahead.

Ace Auto Repair & Tire accepts Cash, Credit Card.

Ace Auto Repair & Tire has held a BAR smog license since 2021. You can verify the license status at bar.ca.gov.

Ace Auto Repair & Tire 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 (925) 743-1552 for a quote.

Ace Auto Repair & Tire does not take online bookings here, but walk-ins are welcome. Call (925) 743-1552 to check the wait.

Staff at Ace Auto Repair & Tire 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.

Because Ace Auto Repair & Tire is a Test & Repair station, it can diagnose and repair the problem in the same shop, then run the free retest within 30 days. If the repair bill is steep, California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in San Ramon are Bestech Smog And Auto Service (0.4 mi) and Clear Blue Test Only Smog Station (0.5 mi). Both are listed further up this page with their ratings and hours.