Selling or moving out of a home in Singapore: what happens to the locks

The handover moment nobody plans for

Selling a flat or moving out at the end of a tenancy comes with a long checklist, utilities, mail redirection, final cleaning, and locks tend to get compressed into “just hand over the keys” without much more thought. That’s a missed opportunity on both sides of the transaction: the seller or outgoing tenant has a chance to close out access cleanly, and the buyer or incoming tenant has a chance to start with a known, controlled set of keys rather than an unknown history.

What sellers and outgoing tenants should do

Gather every key that exists for the property: main door, gate, mailbox, storeroom, and any spares given to family, cleaners, or contractors over the years. If you genuinely can’t account for all copies, which is common after years in a home, having the lock rekeyed shortly before handover is a straightforward way to reset that uncertainty for the buyer without needing to track down every old key.

For a digital lock, factory reset it before you leave. Your own PIN codes, cards, and fingerprints should not still work once the property changes hands, and this step is easy to forget in the rush of moving day.

Step	Seller or outgoing tenant	Buyer or incoming tenant
Collect all keys	Gather and hand over every known copy	Confirm the count matches what’s expected
Digital lock reset	Factory reset before handover	Set up new PIN, cards, or biometrics
Rekey uncertainty	Consider rekeying if copies are unaccounted for	Consider rekeying regardless, as a precaution
Gate lock	Include gate keys in the handover	Test the gate lock separately from the main door

What tenants specifically need to check

If you’re an outgoing tenant who changed a lock during your tenancy, most tenancy agreements require the property to be returned in its original condition. That usually means reverting to the original lock, or at minimum informing the landlord and handing over keys for any change you made. Skipping this step can turn into a dispute over the security deposit, which is an avoidable outcome with a quick conversation before you move out.

What buyers and incoming tenants should do

Even with every key accounted for on paper, a rekey shortly after taking ownership is a reasonable, low-cost precaution. You have no real way to confirm how many unofficial copies were made over the years, by a previous owner’s family member, a past contractor, or a tenant before you. Reviews across the directory consistently mention this exact situation, buyers rekeying shortly after moving in, as one of the more common residential jobs, alongside genuine lockouts.

If the unit has a digital lock, don’t assume it was reset. Check with the seller or agent whether it was factory reset, and if there’s any doubt, have a locksmith reset and reprogram it as part of your own move-in process rather than relying on someone else’s word for it.

The same logic applies to the gate lock, which buyers sometimes overlook because attention naturally goes to the main door first. A gate that still responds to an old key or code is just as much a gap as an unchanged front door lock, and it’s a five-minute add-on if you’re already having the main door rekeyed.

Making the handover clean for everyone

A short conversation between outgoing and incoming parties, ideally documented in the handover paperwork, on exactly what keys exist and whether a rekey happened, saves both sides from the vague uncertainty of “I think that’s all of them.” It’s a small step compared to everything else on a moving checklist, but it’s the one that actually determines who can walk through the front door after the keys change hands. Our scoring methodology weighs how consistently a business handles exactly this kind of handover work. Browse residential locksmiths in Singapore for both ends of this transition, and see the homepage for the full directory.