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24 stations listed · 20 in Concord · 10 open weekends · 21 rated 4.5+
Of the 24 stations we list here, 20 are in Concord itself and 4 come from towns including Walnut Creek (1, 5 mi), Antioch (1, 11 mi) and Vallejo (1, 16 mi). The stations on this page are rated from 4.3 to 5.0 across 3,138 reviews; 13 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these stations on specific qualities, they most often praise professionalism (94%), quality (81%) and punctuality (77%). The topics that come up most in reviews of the stations on this page are "price", "diagnosis" and "honest". 10 are open on Saturdays and 1 on Sundays. 6 list staff certifications (ASE) and 9 have a BBB rating of A or A+. Domain records put 11 websites of the stations on this page at ten or more years old; the oldest dates from 1995. 2 offer financing; 4 are family- or locally-owned and 10 list coupons or special offers. We have a website on file for 18 of the stations on this page; 11 publish a contact page; 4 list a public email and 2 take bookings online. We count these figures across the stations on this page; distances are straight-line, and hours and prices change, so confirm the details with the station before you visit.
Data verified October 9, 2026
Listed for drivers in and around Concord, CA, these 24 shops carry out emissions and inspection work. What each one says about its station license, hours and retest policy comes from its own website; ratings and quotes come from public reviews.
Inside your own state, yes. 20 of the 24 shops here are in Concord and the rest come from other towns, shown with their own city. Crossing a state line does not work, because the test has to be accepted by the state that registers the car.
Excerpts from public reviews of the stations listed on this page.
