Duncans Automotive

Yes. Duncans Automotive 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. Duncans Automotive 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.

Duncans Automotive is open Monday 7:30 AM to 6 PM; Tuesday 7:30 AM to 6 PM; Wednesday 7:30 AM to 6 PM; Thursday 7:30 AM to 6 PM; Friday 7:30 AM to 6 PM; Saturday 7:30 AM to 6 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

Duncans Automotive accepts Cash, Credit Card.

Duncans Automotive has held a BAR smog license since 2003. You can verify the license status at bar.ca.gov.

Duncans Automotive 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 (916) 789-0303 for a quote.

Duncans Automotive does not take online bookings here, but walk-ins are welcome. Call (916) 789-0303 to check the wait.

Staff at Duncans Automotive 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 Duncans Automotive 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 Roseville are Automotive Service Of Roseville (0.4 mi) and Quality Tune Up Shops #42 (0.5 mi). Both are listed further up this page with their ratings and hours.