Contra Costa Auto Service has been serving the Diablo Valley area since 1986. This facility is a general automotive repair shop in the heart of Concord, CA and the latest equipment and trained personnel to completely maintain and repair all make and models currently on the road today. The business was acquired November 2013 by Adrian Radu and Hal Dorton. Having added this location to the other two locations, they plan to expand their presence in the eastbay by continuing to serve their customers with the highest level of professionalism.. Oil changes,brake jobs,fluid flushes,scheduled maintenance,timing belts,cooling systems,air conditioning,transmission service,suspension,shocks,struts,electrical diagnostics.