Duncan Auto Tech

No. Duncan Auto Tech is not STAR certified. If your DMV renewal notice says "STAR Station Required," you will need to visit a STAR certified station instead.

No. Duncan Auto Tech 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.

Duncan Auto Tech is open Monday 8:30 AM to 5 PM; Tuesday 8:30 AM to 5 PM; Wednesday 8:30 AM to 5 PM; Thursday 8:30 AM to 5 PM; Friday 8:30 AM to 5 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Duncan Auto Tech accepts walk-ins, so you can drive in without booking ahead.

Duncan Auto Tech accepts Cash, Credit Card.

Duncan Auto Tech has held a BAR smog license since 2016. You can verify the license status at bar.ca.gov.

Duncan Auto Tech 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 (831) 438-3850 for a quote.

Duncan Auto Tech does not take online bookings here, but walk-ins are welcome. Call (831) 438-3850 to check the wait.

Staff at Duncan Auto Tech 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 Duncan Auto Tech 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 Scotts Valley are Skip's Tire Auto Repair Center (0.4 mi) and Integrity Automotive (0.4 mi). Both are listed further up this page with their ratings and hours.