Simply said, they give you better security and the option the control how many keys are out there. Therefore, it is a great solution for those who want a restricted key system and to know that there are no additional copies out there in the wrong hands. Click Here for more information about high security locks.
The short answer is somewhere between $200-$450 on average.
If you are looking at a door knob cylinder or deadbolt, the price for the cylinder only should be around $200.
If you are looking for a cylinder with restricted keylock system for commercial than the price usually is about $450.
For most residential doors you can estimate a good lock, with up to five keys – around $300.
This home had security issues. The doors had no deadbolts and basic hardware. We upgraded with high-security mul-t-lock hardware and a keyless keypad for convenience.