Price
Call for price
Hours
Open 7 days a week
Station type
Test & Repair
Appointments
Walk-ins welcome
Hours
- Monday
- 6 AM – 9 PM
- Tuesday
- 6 AM – 9 PM
- Wednesday
- 6 AM – 9 PM
- Thursday
- 6 AM – 9 PM
- Friday
- 6 AM – 9 PM
- Saturday
- 6 AM – 9 PM
- Sunday
- 6 AM – 9 PM
Good to know
Languages
English
Payment
Credit Card, Debit Card, NFC/Contactless
What to expect at Hamilton Union Service
Hamilton Union Service is licensed by the Bureau of Automotive Repair as a Test & Repair smog station in Campbell, so it can run the inspection and, if your car fails, diagnose and fix it in the same shop. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Walk-ins are welcome. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- Hamilton Union Service can diagnose and repair the problem in the same shop, then retest the car.
- Each station sets its own retest price, so ask before the first test.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
337 E Hamilton Ave, Campbell, CA 95008-0206
Get directions →Hours
- Monday
- 6 AM – 9 PM
- Tuesday
- 6 AM – 9 PM
- Wednesday
- 6 AM – 9 PM
- Thursday
- 6 AM – 9 PM
- Friday
- 6 AM – 9 PM
- Saturday
- 6 AM – 9 PM
- Sunday
- 6 AM – 9 PM
Also listed on
Other stations near Hamilton Union Service
Premium Auto Repair Center
1820 S Winchester Blvd
Integrity Automotive Service
1800 Winchester Blvd
Campbell Automotive
28 E Rincon Ave
Fast Smog
2029 S Bascom Ave #d
TC Smog Check
2029 S Bascom Ave Suite B
Nearby cities in Santa Clara County
Questions about Hamilton Union Service
Hamilton Union Service is open Monday 6 AM to 9 PM; Tuesday 6 AM to 9 PM; Wednesday 6 AM to 9 PM; Thursday 6 AM to 9 PM; Friday 6 AM to 9 PM; Saturday 6 AM to 9 PM; Sunday 6 AM to 9 PM. Hours can change on holidays, so call ahead if you are cutting it close.
Hamilton Union Service accepts Credit Card, Debit Card, NFC/Contactless.
Google lists the following accessibility features at Hamilton Union Service: wheelchair accessible entrance, wheelchair accessible restroom.
Hamilton Union Service has held a BAR smog license since 1989. You can verify the license status at bar.ca.gov.
Hamilton Union 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 (408) 866-8363 for a quote.
Hamilton Union Service does not take online bookings here, but walk-ins are welcome. Call (408) 866-8363 to check the wait.
Staff at Hamilton Union Service speak English.
The closest alternatives in Campbell are Premium Auto Repair Center (0.4 mi) and Integrity Automotive Service (0.4 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.
Own this shop? Add photos
BAR field office: San Jose • Licensed since 1989