Rekeying locks is an essential security measure that homeowners and business owners should consider, especially when moving into a new property or experiencing a security breach. By rekeying locks, you can prevent unauthorized access and ensure the safety of your property and belongings.

In this article, we will explore the process of rekeying locks for commercial and residential properties. We will provide you with a step-by-step guide that is easy to follow, even if you have no prior experience with lock rekeying.

Before we dive into the process, let’s first define what lock rekeying means.

What is lock rekeying?

Lock rekeying is the process of changing the internal mechanism of a lock so that it works with a new set of keys. It involves disassembling the lock cylinder, replacing the existing pins with new ones, and then reassembling the cylinder to work with a new key. This process is less expensive than replacing an entire lock and can be done by a professional locksmith or DIY.

Now, let’s explore the steps involved in rekeying locks.

Gather the necessary tools and equipment

Before you begin the rekeying process, make sure you have all the necessary tools and equipment. You will need a rekeying kit, which typically includes a variety of pins, springs, and tools. You will also need a screwdriver, pliers, and a key decoder. Make sure to purchase a rekeying kit that is compatible with your type of lock.

Remove the lock from the door

To rekey a lock, you will need to remove the lock cylinder from the door. To do this, use a screwdriver to remove the screws on the faceplate of the lock. Once the screws are removed, you should be able to slide the cylinder out of the lock body.

Disassemble the lock cylinder

Once you have removed the lock cylinder, you will need to disassemble it. Use the key decoder to determine the size and position of the existing pins in the lock. Then, use a plug follower to remove the cylinder plug from the cylinder body.

Replace the existing pins

Once you have removed the cylinder plug, remove the existing pins from the cylinder using a pinning tray and pliers. Then, replace the existing pins with new pins from your rekeying kit. Make sure to use the correct size and position for each pin.

Reassemble the lock cylinder

Once you have replaced the existing pins with new ones, it’s time to reassemble the lock cylinder. Use the plug follower to reinsert the cylinder plug into the cylinder body. Then, use the key decoder to ensure that the new pins are aligned correctly.

Test the new key

Once you have reassembled the lock cylinder, test the new key to ensure that it works correctly. Insert the key into the lock and turn it to ensure that the lock is unlocked.

Repeat the process for all locks

If you are rekeying locks multiple locks, repeat the process for each lock. Make sure to keep track of which key works with which lock, so you don’t accidentally mix them up.


Rekeying locks is an essential security measure that can help protect your property and belongings from unauthorized access. By following the steps outlined in this article, you can rekey your locks for your commercial or residential property with ease. Whether you choose to hire a professional locksmith or do it yourself, rekeying your locks can give you peace of mind and ensure the safety of your property.

Leave a Reply

Your email address will not be published. Required fields are marked *