Pro Smog Center

Yes. Pro Smog Center Inc. 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. Pro Smog Center Inc. 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.

Pro Smog Center Inc. is open Monday 8 AM to 6 PM; Tuesday 8 AM to 6 PM; Wednesday 8 AM to 6 PM; Thursday 8 AM to 6 PM; Friday 8 AM to 6 PM; Saturday 8 AM to 1 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Pro Smog Center Inc. accepts walk-ins, so you can drive in without booking ahead.

Pro Smog Center Inc. accepts Cash, Credit Card.

Pro Smog Center Inc. has held a BAR smog license since 2018. You can verify the license status at bar.ca.gov.

Pro Smog Center Inc. 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 (909) 390-2234 for a quote.

Pro Smog Center Inc. does not take online bookings here, but walk-ins are welcome. Call (909) 390-2234 to check the wait.

Staff at Pro Smog Center Inc. 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 Pro Smog Center Inc. 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 Ontario are Crown Lexus (0.5 mi) and Mini Of Ontario (0.8 mi). Both are listed further up this page with their ratings and hours.