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Smog Check & Emissions Testing Stations in Castro Valley, CA

3 of the 25 auto repair shops we list in Castro Valley have smog checks or emissions tests.

Not every repair shop is licensed to test emissions, and a map search for a smog check mixes test stations with parts stores and dealerships. Every station here names smog checks or emissions testing in its business name, its listing category or on its own website.

  1. Chabot Smog

    20747 Lake Chabot Rd, Castro Valley, CA 94546

    Mon–Fri

    Smog & emissionsDiesel & truck
    Call Website Directions

  2. Lake Chabot Mobil Auto Repair & Smog

    18950 Lake Chabot Rd, Castro Valley, CA 94546

    Smog & emissions
    Call Directions

  3. Smog World and Lube

    2780 Castro Valley Blvd, Castro Valley, CA 94546

    Smog & emissions
    Call Directions
Bring your registration renewal notice. States that require emissions testing usually print the type of test on it. In California, a notice that says “STAR station required” means only a STAR-certified station can do the check, and test-only stations check cars but do not repair them.

More in Castro Valley and California

Smog Check & Emissions Testing Stations near Castro Valley

Good to know

How much does a smog check cost?

Prices depend on the state and the station. In California a smog check usually costs about $30–70 plus the state certificate fee; in states that run their own emissions programs the fee is often a flat amount set by the state.

What happens if my car fails the emissions test?

You get a report with the reason for the failure, and the car needs repairs before a retest. Many states give a free or discounted retest within a set number of days, and some offer repair assistance or waivers when repair costs pass a limit.