Rekeying Locks in Perth — When to Rekey vs Replace

Rekeying is one of the most cost-effective security decisions a Perth homeowner or renter can make — and it's often overlooked. Here's when you should rekey, when to replace, and what's involved.

What Is Rekeying?

Rekeying changes the internal pin configuration of your existing lock cylinder so that old keys no longer work. The lock mechanism itself stays in place — only the pins inside the cylinder are changed to match a new key. It's faster and cheaper than replacing the entire lock, and provides the same level of security against old keys being used.

When Should You Rekey?

Moving into a new home: You have no idea how many copies of the previous keys exist. Rekeying on move-in day is the simplest way to guarantee only you have working keys. Lost or stolen keys: If your keys are lost (especially with identifying information like a key tag with your address), rekeying is urgent. End of tenancy: Landlords should rekey between tenancies. Tenants who want security should request confirmation this has been done. Relationship breakdown: If an ex-partner had keys, rekeying protects your household.

When to Replace Instead of Rekey

Replace rather than rekey if: the lock is old, worn, or damaged; you want to upgrade to a higher-security lock; you want to change the lock brand or type; or the lock is a lower-grade unit and you want to take the opportunity to improve overall security. A good locksmith can advise which approach gives you better value in your specific situation.

Master Keying

If you have multiple locks on a property, a locksmith can rekey them to a master key system — where all locks open with one key, but individual locks can also have their own unique keys. This is common in rental properties and investment portfolios where an owner needs access to all properties but tenants have separate keys.