The majority of door locks can be replaced relatively inexpensively, and in most cases can simply be switched over without much fuss. There are two types of lock you might need to change in your home; a door knob, or a cylinder lock. Most locks can be changed without having to call out a locksmith. Follow our simple instructions to see how easy it is to do it yourself.
1. Remove the main body of the lock by removing the screws which hold the lock in place. Some door knobs may have a decorative ring which obscures the screws.
2. Remove the door knobs from both sides of the door, leaving only the latch mechanism in place.
3. Remove the latch. Usually this will slide straight out without much effort.
4. Insert the new latch, making sure that it aligns with the centre of the hole where the new door knob will be installed. All latches come in 2 sizes, either 2 ¾ or 2 3/8. Most are adapted so they can be adjusted to the right size.
5. Take the new door knobs and slide them through. Ensure the right handle is on the right side of the door.
6. Check the locking mechanism works and that the latch opens and closes smoothly, then screw the handles firmly back on to the door.
Profile cylinder lock
Profile cylinder locks are easy to change, and usually only require loosening a set screw, then sliding the cylinder out from its housing. The advantage to this is that you can replace the cylinder without having to change the door handles or other hardware.
1. Open the door to reveal the face of the lock.
2. Locate the centre screw by using the cylinder keyhole as a guide. Remove the screw.
3. Remove the cylinder by inserting the key and turning it slightly in the direction of the door hinges and pulling gently.
4. Insert the key into the replacement cylinder, and turn it slightly to align the cylinder cam.
5. Slide the replacement cylinder back into its housing.
6. Replace the centre screw, and then test that the door opens and closes without difficulty.