Hesperian Arco Smog Pros

Yes. Hesperian Arco Smog Pros 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. Hesperian Arco Smog Pros 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.

Hesperian Arco Smog Pros is open Monday 8 AM to 6 PM; Tuesday 8 AM to 6 PM; Wednesday 8 AM to 6 PM; Thursday 8 AM to 6 PM; Friday 8 AM to 6 PM; Saturday 8 AM to 5 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Hesperian Arco Smog Pros accepts walk-ins, so you can drive in without booking ahead.

Hesperian Arco Smog Pros accepts Cash, Credit Card.

Hesperian Arco Smog Pros has held a BAR smog license since 2019. You can verify the license status at bar.ca.gov.

Hesperian Arco Smog Pros 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 (510) 278-2977 for a quote.

Hesperian Arco Smog Pros does not take online bookings here, but walk-ins are welcome. Call (510) 278-2977 to check the wait.

Staff at Hesperian Arco Smog Pros 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 Hesperian Arco Smog Pros 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 San Lorenzo are Bestech Smog 2 (0.2 mi) and A - One Auto (0.9 mi). Both are listed further up this page with their ratings and hours.