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We value our Customers!

Honesty, Excellent Service at Affordable Prices


Why you should choose us?

We offer highest value in our test only smog check services. We define value as accumulation of reasonable price and diligent customer support.

No Appointment Needed

An appointment is available, not necessary. Walk-ins are welcome.

Convenient Location

Besides being a local smog test station, we are also conveniently located on W 39th Ave and El Camino Real intersection.


We are Star Certified Test Only Station. We are not licensed to perform any repair. Our aim is to help your car pass the smog test.

In & Out in Only 10-15 minutes

Appointment is Available, not Necessary

Convenient Location

Costumer Rewiews

Ted Wittman
Ted Wittman
The service was friendly when I did interact with the technician for my smog check. They also honored my coupon. I was waiting for them to service other drivers but that went as quickly as it seemed like it should’ve. The shop is pretty dirty and the signage could use some changing out. But the reason for knocking a star is because the technicians don’t acknowledge you when you come in. You need to say something to them even when you’re standing next to them. If they could do a better job at acknowledging their customers, this would be a good place to go for smog checks.
Ahmad Atta
Ahmad Atta
Great Service.
Yohei Ota
Yohei Ota
It is quick service if your car is no problem.

How can I become a privileged customer?

Simply visit our store and commit 15 minutes while your car is being smogged is good enough to
become a privileged customer of 4Less Smog Check Test Only Station.

Business Hours

Mon – Fri: 8:30 AM – 5:30 PM
Saturday: 9:00 AM – 5:00 PM

4Less Smog Check

3925 S El Camino Real San Mateo, CA 94403


Call us at
(650) 762-8434

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