Brentwood Smog Express is a family owned and run business located in Brentwood, California. Our business has been voted the Best Of Brentwood for the past 15+ years. We Keep your car running clean! We offer inspections and testing for emissions, performance, maintenance and more! We also offer DMV registration services. Do your part in protecting not only your engine, but the environment. With regular emissions testing and inspection services, you can extend the life of your vehicle, all while limiting the negative impact your car has on the environment. We offer a variety of services related to emissions and inspection, including materials, training, location services, licensing and more. Call us today!