Master Key System

A Master System is a set of locks in which a single key can open just one lock, a group of locks or all the locks. This system is used in particular by places such as apartment buildings. For example, individuals have a key that opens the door lock to their apartment and to the common laundry room. The building owner or superintendent has only one key to open door locks for all the units and areas in the building. The key that opens all the locks is called the master key.

Our expert locksmiths at Upper West Side have specialized knowledge in installing and maintaining master systems. These key systems are highly complex to install and complicated to maintain and we at Upper West Side have the specialized ability to handle master key systems of any kind and many different locks and keyways such arrow lock Medeco Mul-t-lock Master lock Corbin Russwin ASSA ABLOY and more.  It is also imperative that as because Upper West Side is a highly reputable locksmith, we continue to maintain your master system to ensure it stays completely secure.