Cartech

Yes. Cartech 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. Cartech 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.

Cartech is open Monday 9:30 AM to 7 PM; Tuesday 9:30 AM to 7 PM; Wednesday 9:30 AM to 7 PM; Thursday 9:30 AM to 7 PM; Friday 9:30 AM to 7 PM; Saturday 9:30 AM to 5 PM; Sunday 11 AM to 3 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Cartech accepts walk-ins, so you can drive in without booking ahead.

Cartech accepts Cash, Credit Card.

Cartech has held a BAR smog license since 2015. You can verify the license status at bar.ca.gov.

Cartech 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) 385-7116 for a quote.

Cartech does not take online bookings here, but walk-ins are welcome. Call (925) 385-7116 to check the wait.

Staff at Cartech 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 Cartech 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 alternative in Lafayette is California Smog (0.6 mi). It is listed further up this page with its rating and hours.