However calling a locksmith will generally set you back about 50 100 and you could probably do the job just as well yourself.
Changing locks on old doors.
Replacing a deadbolt which should be done if your lock is ever compromised is a quick and simple process no matter what type of door or lock you have.
When you want the lock to open with a different existing key say so you no longer want to use separate keys to enter the front back and side doors the lock must be disassembled and the pins.
When you change a lock you or a locksmith removes the old locking door hardware and replaces it with new hardware.
Change your locks yourself by removing the lock cylinder and changing the pins.
When to change a lock.
Measure the diameter of the holes currently cut out of your door so you can select a new door lock that fits those dimensions.
Since most homes have multiple doors with multiple locks re keying can get expensive.
If you re worried about installing the door locks yourself don t be.
If you have an old door lock that you need to replace whether it s because the lock is broken or you re simply concerned about a stray door key you could call a professional locksmith to come change the lock for you.
Before you learn how to change door locks measure the space where you ll install the replacement.
Take care to measure carefully as matching the size can be especially problematic in older homes.
First we removed the hideous old door knob and deadbolt.
Next put a new latch in and replace the door knob.
Door thickness can vary as can the exact location of the hole for the deadbolt relative to the edge of the door.
To change the lock on a regular door knob first use a screwdriver to remove the door knob and the old latch.
Once you have the kit remove the lock cylinder from the door knob so you can change the pins inside.
They ll usually be standardized but on old doors they may not be.
You ll have all new locks and all new keys but changing your locks can be expensive and isn t always necessary.
Schlage provides a set of extremely easy instructions to follow.
Dump out the old pins insert the new key and use tweezers or small needle nose pliers to match the new colored pins to the color.
Replacing door locks you ll pay from 40 to 300 to buy a new door lock depending on design materials and whether it s a simple key in knob lock or a high end lock and handle combo with.
Insert the pins and reassemble the lock.
Then we inserted the interior mechanism for both the new deadbolt and the door handle and screwed them in place.