All Smog & Tune

Yes. All Smog & Tune 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. All Smog & Tune 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.

All Smog & Tune is open Monday 7 AM to 5 PM; Tuesday 7 AM to 5 PM; Wednesday 7 AM to 5 PM; Thursday 7 AM to 5 PM; Friday 7 AM to 5 PM; Saturday 7 AM to 3 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

All Smog & Tune accepts Cash, Credit Card.

All Smog & Tune has held a BAR smog license since 1988. You can verify the license status at bar.ca.gov.

All Smog & Tune 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 (626) 337-7422 for a quote.

All Smog & Tune does not take online bookings here, but walk-ins are welcome. Call (626) 337-7422 to check the wait.

Staff at All Smog & Tune 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 All Smog & Tune 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 West Covina are Purrfect Auto Service (1.0 mi) and Vista Smog And Test Only Center (1.1 mi). Both are listed further up this page with their ratings and hours.