Grumpys Smog Center

Yes. Grumpys Smog Center 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. Grumpys Smog Center 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.

Grumpys Smog Center is open Monday 7 AM to 6 PM; Tuesday 7 AM to 6 PM; Wednesday 7 AM to 6 PM; Thursday 7 AM to 6 PM; Friday 7 AM to 6 PM; Saturday 7 AM to 3 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

Grumpys Smog Center accepts Credit Card, Debit Card, NFC/Contactless.

Google lists the following accessibility features at Grumpys Smog Center: wheelchair accessible entrance, wheelchair accessible parking, wheelchair accessible restroom, wheelchair accessible seating.

Grumpys Smog Center has held a BAR smog license since 2003. You can verify the license status at bar.ca.gov.

Grumpys Smog Center 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 (818) 882-4333 for a quote.

Grumpys Smog Center does not take online bookings here, but walk-ins are welcome. Call (818) 882-4333 to check the wait.

Staff at Grumpys Smog Center 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 Grumpys Smog Center 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 Chatsworth are Chatsworth Smog Check Center and Abe's Auto Repair Center (0.5 mi). Both are listed further up this page with their ratings and hours.