Step by step instructions on how to change a door lock.
How to change a lock from an original door.
Cylindrical door locks for entry doors are internal keyed locking mechanisms.
Remove the screws from the old lock on the inside of the door.
An experienced and professional locksmith can pick the lock open or shim the lock for unlocking it.
The most comprehensive method of ensuring security it involves removing the existing lock from the door including the handle if it s a handle lock combo and then installing a brand new lock in.
For rekeying the lock cylinder the locksmith must bring the lock to the unlocking position.
Once the new pins are in reverse the steps to reassemble the lock.
Use a phillips head screwdriver to unfasten the two or three screws located on the inside knob plate.
They utilize an internal lock that interacts with the trim of the.
Insert the pins and reassemble the lock.
It is as simple as changing 3 screws removin.
You may also need to use a wire tool or a paper clip.
If your new lock is the same brand and model as the old one you may be able to keep your existing latch plate and strike plate.
Then remove each side s door knob by pulling them away from the door.
How to change the lock cylinder in an entry door.
Remove the latch assembly doorknob.
All you need is a screwdriver and the replacement lock.