Quality Smog

Quality Smog holds a STAR certification that is currently suspended in the BAR registry, which means it cannot test DMV-directed vehicles until the certification is restored.

Yes. Quality Smog 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.

Quality Smog is open Wednesday 9 AM to 4:45 PM; Thursday 9 AM to 4:45 PM; Friday 8:45 AM to 4:45 PM. Closed Monday and Tuesday and Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

Quality Smog accepts Cash, Credit Card.

Quality Smog has held a BAR smog license since 2017. You can verify the license status at bar.ca.gov.

Quality Smog 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) 267-0075 for a quote.

Quality Smog does not take online bookings here, but walk-ins are welcome. Call (925) 267-0075 to check the wait.

Staff at Quality Smog 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.

Quality Smog 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 Pittsburg are County Smog Llc (0.4 mi) and Pittsburg Smog (0.6 mi). Both are listed further up this page with their ratings and hours.