Walnut Creek Smog

No. Walnut Creek Smog Incorporated 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.

Walnut Creek Smog Incorporated is open Monday 9 AM to 6 PM; Tuesday 9 AM to 6 PM; Wednesday 9 AM to 6 PM; Thursday 9 AM to 6 PM; Friday 9 AM to 6 PM; Saturday 9 AM to 2 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

Walnut Creek Smog Incorporated accepts Cash, Credit Card.

Walnut Creek Smog Incorporated has held a BAR smog license since 2021. You can verify the license status at bar.ca.gov.

Walnut Creek Smog Incorporated 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) 938-1646 for a quote.

Walnut Creek Smog Incorporated does not take online bookings here, but walk-ins are welcome. Call (925) 938-1646 to check the wait.

Staff at Walnut Creek Smog Incorporated 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 Walnut Creek Smog Incorporated 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 Walnut Creek are Gordon Smog Test & Lube Center and Diablo Subaru Of Walnut Creek (0.1 mi). Both are listed further up this page with their ratings and hours.