Rekeying a lock means replacing the working key of the lock with a different key. This is all done without changing the lock itself. In simpler words, you keep the same lock but the old key will no longer work on it. This is completed by taking the lock apart and changing some of the parts inside called “tumblers” or “key pins”.

The key pins in your lock have a sequence that corresponds to a specific key. Therefore, when you replace those pins with different ones, you essentially set a new key that will now operate the lock. This may sound complicated, however, it’s an easy procedure given the right tools for rekeying the lock.

What Does Rekeying a Lock Mean?

How to rekey a lock?

In order to rekey a lock, you must have its matching key. Without the matching key, the locksmith will be obliged to pick open the lock. Although it’s not a problem for a skilled locksmith, this will be an additional charge for you which can be more expensive than replacing the lock altogether.
Furthermore, one factor that makes a lock secure is the number of pins inside of it. As long as it has five pins, the lock will remain secure as it was before. Rekeying is always cheaper than getting your lock changed. This can be attributed to the low price of the key pins in the locks. When rekeying your lock, you are just paying the labor of the locksmith. However, when you get your locks replaced, you’re paying for the labor and the parts.

All locks come with a built-in option to be rekeyed. However, there are some high-security locks such as “Medeco” and “Mul-T-Lock” which require a unique set of tools for the key pins to be rekeyed.

Rekeying multiple locks is common when choosing to have only one key for all of the locks in your home. However, keep in mind that the brand of the lock has to be the same or to share the same type of keyholes, so they can be matched.

When should you rekey?

The most common situations for choosing to rekey a lock include:

  1. If you transfer into a new place and you don’t know who else has the key. You lost a key, and you’re afraid that someone may find it or you want to prevent someone from entering who has the key.
  2. Given that all locks are of the same brand or keyhole but you have different keys for different locks and you want to only have one key for all locks.

If you’re in a situation that you need to rekey your locks, you can be like a pro-locksmith. Most lock brands have rekeying kits available but they’re not interchangeable. If all of your locks are of the same brand, you are lucky that you need to only buy one kit. In fact, all the tools you need are there except for a screwdriver. However, remember to keep your current keys as they will be needed to remove the cylinder.

Additional Source: Best and Worst Door Locks

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