AB Systems 24/7 llc is a leading certified New York security company dedicated to providing advanced, custom-tailored security systems and services to our clients across all five boroughs (Manhattan, Brooklyn, Queens, The Bronx and Staten Island). We offer a full range of top-of-the-line residential, commercial, government and industrial security systems from the world’s most trusted brands, while adhering to New York building codes and regulation requirements. Enjoying a reputation for professionalism, quality, reliability and superior client service, we proudly protect and service over 20,000 clients of all sizes, including residential properties, property management and construction companies, office buildings, hotels, schools, retail stores and small businesses, in addition to governmental, hospitality, educational and religious institutions.