Baysmog

Baysmog is a STAR certified test-and-repair smog check station in Hayward, CA.

4.8(113 reviews)

258 W Tennyson Rd, Hayward, CA 94544

Price

Call for price

Hours

Open 7 days a week

Station type

Test & Repair

Appointments

Walk-ins welcome

STAR Certified - Authorized for directed vehicles and gross polluters

Hours

Monday
9 AM – 6 PM
Tuesday
9 AM – 6 PM
Wednesday
9 AM – 6 PM
Thursday
9 AM – 6 PM
Friday
9 AM – 6 PM
Saturday
9 AM – 4 PM
Sunday
10:30 AM – 4 PM

Good to know

Languages

English

Payment

Credit Card, Debit Card, NFC/Contactless

Other stations near Baysmog

Nearby cities in Alameda County

Questions about Baysmog

Yes. Baysmog 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. Baysmog 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.


Baysmog is open Monday 9 AM to 6 PM; Tuesday 9 AM to 6 PM; Wednesday 9 AM to 6 PM; Thursday 9 AM to 6 PM; Friday 9 AM to 6 PM; Saturday 9 AM to 4 PM; Sunday 10:30 AM to 4 PM. Hours can change on holidays, so call ahead if you are cutting it close.


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


Baysmog accepts Credit Card, Debit Card, NFC/Contactless.


Google lists the following accessibility features at Baysmog: wheelchair accessible entrance, wheelchair accessible parking.


Baysmog has held a BAR smog license since 2024. You can verify the license status at bar.ca.gov.


Baysmog 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) 887-4735 for a quote.


Baysmog does not take online bookings here, but walk-ins are welcome. Call (510) 887-4735 to check the wait.


Staff at Baysmog 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 Baysmog 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 Hayward are Quick Lube & Smog (0.3 mi) and Avis Auto Repair (0.6 mi). Both are listed further up this page with their ratings and hours.


How we get this data: BAR licenses and STAR status, Google hours and ratings, coupons published by the station.

Verify this station’s license and STAR standing at bar.ca.gov.

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BAR field office: S San Francisco • Licensed since 2024

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