Promax Auto Service

Yes. Promax Auto Service 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. Promax Auto Service 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.

Promax Auto Service is open Monday 8 AM to 5:30 PM; Tuesday 8 AM to 5:30 PM; Wednesday 8 AM to 5:30 PM; Thursday 8 AM to 5:30 PM; Friday 8 AM to 5:30 PM; Saturday 8 AM to 3:30 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

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

Promax Auto Service accepts Cash, Credit Card.

Promax Auto Service has held a BAR smog license since 2002. You can verify the license status at bar.ca.gov.

Promax Auto Service 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 (949) 597-1999 for a quote.

Promax Auto Service does not take online bookings here, but walk-ins are welcome. Call (949) 597-1999 to check the wait.

Staff at Promax Auto Service 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 Promax Auto Service 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 Lake Forest are Purrfect Auto Service #17 and Us Smog. Both are listed further up this page with their ratings and hours.