Master Key Systems and Restricted Keys

Master and Restricted Keys for Multiple Security Levels

Do you need to grant varying levels of security access to several employees? Maybe you want more precise control of who accesses your property and how. 

If this is the case, consider getting a master key system or a set of restricted keys for your property from Oestreich Sales & Service. 

With master key systems, business owners and property managers can provide their personnel with keys designed to open only specifically-required doors and locks.

We're a licensed and locally owned locksmith company providing expert lock and key systems for Joliet, IL since 1904. Call Oestreich Sales & Service today for a free estimate on master key systems or restricted keys.

How Master Key Systems Work

Standard keys push a lock's pins in a specific order to turn the lock over. Master key systems are an expansion of this same principle. 

A master key system consists of lower-level keys, called change keys, that can turn over specific locks, with master keys designed to open locks that the lower keys cannot turn over. 

This system allows for multiple master key levels for increasing degrees of access.

Restricted Keys For Specific Personnel Access 

Restricted keys allow property owners to prevent unauthorized key duplication and ultimately maximize security. 

With restricted keys, the uncut key blanks are kept and supplied by specific locksmiths. Because these blanks are restricted, it is easy to keep track of who should be able to make copies.

Typically, the property owner keeps a definitive list and authorizes specific personnel to have new keys or duplicates created. This allows business owners to know exactly how many keys to their property exist.

Oestreich Sales & Service is a member of the Associated Locksmiths of America with decades of restricted key cutting experience. Call us today for a free estimate on restricted key cuts for your business.