Deadbolts are a type of lock a locksmith installs for residents and business owners in order to ward off burglars. A deadbolt provides more security than an ordinary key-operated lock because the weight of the locking bar is usually sufficient to increase break-in time to 10 or 15 minutes. Many individuals are now hiring locksmiths to replace their typical key locks with high security deadbolts. The use of deadbolt locks has cut into burglary rates all across the nation. In order for a deadbolt lock to be opened, the lock cylinder has to be manipulated. The traditional spring bolt locks can easily be penetrated by just about any assertive thief. There are two different kinds of deadbolt locks. One type is called the surface mount deadbolt and the other is referred to as an internal deadbolt. Surface mount deadbolts are placed on a door's exterior whereas internal deadbolts are found within the door itself. Internal deadbolts offer a higher level of security than the surface mount deadbolt because burglars will have to get into the door in order to penetrate the lock. locksmiths can install either one of these deadbolts. When you hire a locksmith to install deadbolt locks, always be sure to ask for a new deadbolt that will match up to your existing lock system. A locksmith can accomplish this task as long as you have a copy of the original key available.