How to Rekey a Lock in 5 Easy Steps

 

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DIY Locksmith: How to Rekey a Lock in 5 Easy Steps

Whether you're moving into a new home, lost a key, or just want to enhance your home’s security, rekeying your locks is an affordable and effective solution. Rekeying allows you to change the internal mechanism of a lock so that a new key can open it, without needing to replace the entire lock system. Here’s how to rekey a lock in 5 easy steps.

1. Gather Your Tools and Supplies

What You’ll Need:

• Rekeying Kit: You can purchase a rekeying kit specific to your lock brand. It will include new keys, pins, and tools necessary for the job.
• New Key: Make sure you have the new key you want to use with the lock.
• Screwdriver: Depending on your lock type, you may need a flathead or Phillips screwdriver to remove the lock from the door.
• Tweezers (Optional): Helpful for handling small pins inside the lock.

2. Remove the Lock from the Door

Step-by-Step:

• Unscrew the Lock: Start by using a screwdriver to remove the screws on the doorknob or deadbolt faceplate.
• Disassemble the Lock: Carefully pull the lock apart, keeping all parts in a safe place. You will need access to the cylinder, the part of the lock that you’ll be rekeying.
• Remove the Cylinder: Once you’ve taken the lock apart, remove the lock cylinder from the assembly. This is the part that holds the pins and where the key is inserted.

3. Take Apart the Cylinder

Step-by-Step:

• Insert the Current Key: Insert the old key into the cylinder to turn it slightly, which allows you to remove the plug from the cylinder without the pins falling out.
• Use the Retaining Tool: If your rekeying kit includes a plug follower (a small cylindrical tool), use it to push the plug out of the cylinder while keeping the top pins and springs in place.
• Keep Track of Pins: Carefully remove the old key pins from the plug, making sure you don’t lose any of the small springs or other components.

4. Insert the New Pins

Step-by-Step:

• Match the New Key to the New Pins: Using the new key provided in your rekeying kit, refer to the pin chart included in the kit to find the corresponding pins for each cut on the new key. Each pin should match the height of the new key cuts.
• Insert the Pins: Place the new pins into the plug, ensuring they are in the correct order and sit flush with the plug's surface when the new key is inserted. You can use tweezers for easier handling of the small pins.
• Check the Key: Once all the new pins are in place, insert the new key to make sure it turns smoothly. If it doesn’t, double-check the pin heights and placement.

5. Reassemble and Reinstall the Lock

Step-by-Step:

• Reinsert the Plug: Once the new pins are in place and the new key works smoothly, reinsert the plug into the cylinder, using the plug follower to ensure the top pins and springs stay intact.
• Reassemble the Lock: Put the lock back together in the reverse order you took it apart, securing all screws and components.
• Test the Lock: Before reinstalling the lock on the door, test the lock with the new key several times to ensure it works properly.
• Reinstall the Lock: Once everything is working smoothly, reinstall the lock onto the door and tighten all screws.

Conclusion: A Cost-Effective Security Upgrade

Rekeying a lock is a straightforward DIY project that can enhance the security of your home without the need to replace the entire lock system. By following these simple steps, you’ll have a rekeyed lock that works with a brand-new key in no time. For more complex locks or security needs, don’t hesitate to consult a professional locksmith.