How Often Should You Replace Your Locks?

There isn't a manufacturer-recommended service interval for locks the way there is for a boiler, but that doesn't mean you should never think about it.

Events that should trigger a change

Moving into a new property, a break-up where an ex-partner had keys, a lost or stolen key, or a burglary attempt are all good reasons to change locks regardless of their age.

Wear signs worth watching for

Stiff turning, a loose handle, a cylinder that's visibly corroded, or a lock that's already been drilled once are all signs it's on borrowed time.

Typical lock lifespan

A quality mechanical lock used daily might comfortably last 15-20 years, but cheaper cylinders or ones exposed to weather can start failing much sooner.

Rental properties

Landlords should generally change locks between tenancies as standard practice, both for security and to avoid disputes over who might still hold a key.

Our recommendation

If none of the above applies and your locks are working smoothly, there's no need to replace them just for the sake of it — but it's worth having them assessed if you're ever unsure.