American Lock and Alarm Corp. is one of the most skilled and experienced security contractors in the NYC metro, Nassau, Suffolk, Westchester, and surrounding areas. Founded in 1988 and immediately recognized as highly reputable among its industry peers, American Lock and Alarm Corp. has been providing security consultation and system installation to some of the largest businesses, including many Fortune 500 Companies, in the New York region. American installs card access systems, burglar alarms, video surveillance, and home automation systems. We have a full locksmith shop with mobile key-cutting and key-programming machines.