Are you worried about the security of your home or office? One of the simplest ways to increase security is to change the door lock cylinder. A door lock cylinder is the part of the lock where you insert the key to unlock the door. Changing the lock cylinder is a quick and affordable way to ensure that you have control over who has access to your property.

In this article, we will discuss step-by-step instructions on how to change door lock cylinder.

Step 1: Remove the old lock cylinder

To remove the old lock cylinder, you will need to take off the doorknob or lever. Usually, this involves removing a couple of screws that hold the knob or lever in place. Once you have removed the knob or lever, you should be able to see the lock cylinder. Use a screwdriver to loosen the screws that hold the cylinder in place. Once the screws are loose, you should be able to pull the cylinder out of the lock.

Step 2: Measure the old lock cylinder

To ensure that you purchase the correct replacement lock cylinder, you will need to measure the old one. Use a ruler or tape measure to determine the length of the cylinder. You should also measure the diameter of the cylinder. Most lock cylinders are either 1 inch or 1 1/8 inch in diameter.

Step 3: Purchase a new lock cylinder

Once you have measured the old lock cylinder, you can purchase a replacement. You can find replacement lock cylinders at your local hardware store or online. Be sure to match the length and diameter of the old cylinder to the new one.

Step 4: Install the new lock cylinder

To install the new lock cylinder, simply reverse the steps you used to remove the old one. Insert the new cylinder into the lock, and tighten the screws that hold it in place. Then, replace the doorknob or lever, and tighten the screws that hold it in place.

Step 5: Test the new lock cylinder

After you have installed the new lock cylinder, be sure to test it to make sure it works correctly. Insert the key and turn it to ensure that the lock engages and disengages properly. If the lock does not work correctly, you may need to loosen the screws and adjust the cylinder until it works properly.

In conclusion, changing a door lock cylinder is a simple task that can greatly improve the security of your home or office. By following the steps outlined in this article, you can easily change the lock cylinder yourself and rest easy knowing that you have control over who has access to your property.