Syosset Locks Services LLC is the top provider of CCTV installations, keyless entry systems, access control installations, locksmith services, and key duplication and cutting in the Nassau County area. Count on us to use the latest, most popular products available, including brands such as Gardall, Emtek, and CDVI. From doorknobs and hardware to safes and security systems, you can come to us for the security products you need for your home, office, or personal belongings.