Mul-t-Lock is one of the leading names world wide in the field of high security products for the protection of man and property for institutions, industrial constructions, offices, vehicles and buildings, both commercial and residential.  Products of Mul-T-Lock companies are enjoyed by over 100 million users around the world.  The ASSA Abloy group is the world's leading manufacture and supplier of Mul-T-Lock products.  Pre-Lock Security is proud to be an authorized Toronto 24 hour locksmith dealer serving Toronto, GTA, and now the Barrie area.

MUL-T-LOCK’s Patented Interactive Key Control System will give you the confidence you need to know that you are in total control of your keys. To understand MUL-T-LOCK’s Interactive System, you must first understand what “Key Control” means.

Good Key Control
Only the user and the people the user authorizes are able to obtain additional keys.  In our professional opinion no one should be able to duplicate your key without your knowledge!!

Bad Key Control
Anyone can obtain additional keys without any verification or requirements. 

MUL-T-LOCK’s Interactive Key Control System is protected by a United States Utility Patent which lasts well into the next decade. Since it is patent protected no company can make imitation key blanks which will fit into the MUL-T-LOCK product line. Furthermore, MUL-T-LOCK has instituted a Key Control Procedure which all Authorized Service Centers must abide by. Over 90% of all keys in the marketplace are not patent protected. If a key is not patent protected other companies can manufacture that key blank and sell to whomever they please, and any Key Control Procedure instituted by the original manufacturer is void, thus leaving the consumer wide open for unauthorized key duplication.