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Keyed Alike – Multiple Locks With Same Key

Do you have questions on keyed alike or keyed to differ?
Are you thinking about using the same key to unlock multiple locks?
In this post, we will cover these questions.
house keys

What Does Keyed Alike Mean?

Keyed alike means that the locks have the same key code so that one key can fit all the locks. For example, your front door key can also open the back door lock.

What Does Keyed to Differ Mean?

Keyed to differ means each lock has its unique key, and the key can’t open other locks. This is common for most homes, such as your security door key can’t unlock the front door.

Can Existing Locks in My Home Be Keyed Alike?

Yes, your installed locks can be key alike if they are compatible or have the same key profiles. They are usually the same brand. You can test this at home by inserting an existing key into different doors, padlocks or windows. If the key can slide into the keyhole, those locks are compatible and match each other. The test should not be able to unlock the other lock, but if it does, this means that the locks are already keyed alike.

If your locks are not compatible, they will need to be replaced so that you can use the same keys for them.

To have your house locks keyed alike in Perth, our local locksmith can come to you and rekey them with our fully equipped mobile workshop.

Are Keyed Alike Locks Safe?

Keyed alike locks are safe. However, a unique key for each lock is seen as more secure for your property.

Is Keying Alike Your Locks a Good Idea?

Keying alike your locks is a good idea. You will only need one key and don’t have to carry multiple keys to your home. It’s convenient to have a much lighter keychain in your pocket, and you don’t have to shuffle for the right key every time.


If you want to know more about keyed alike, keyed to differ or master keying, please feel free to contact us today.