St Louis Alarm Co Service Areas

St. Louis Alarm Company proudly serves the greater St. Louis metropolitan area, including St. Louis County, St. Charles County, Lincoln County, Jefferson County, and Franklin County in Missouri.  Our expert security solutions extend to communities such as O’Fallon, St. Peters, Wentzville, Troy, Chesterfield, Ballwin, Arnold, and beyond. Whether you need residential or commercial security services, we are committed to providing top-tier alarm monitoring, video surveillance, and smart security solutions to keep homes and businesses safe across the region.