Rekey vs Replace: Which Do You Need After Moving into a New Flat?

Rekeying is usually the right choice. It costs AED 60–150 per lock and makes all old keys useless — just as secure as a new lock, for a fraction of the price. You only need to replace a lock when it's physically damaged, worn out, or you want to upgrade to a different security standard. In most Dubai tenancy changes and post-break-in situations, rekeying is faster, cheaper, and equally effective.

What Is Rekeying?

Rekeying means a locksmith opens the cylinder and rearranges the internal pin tumblers to a new configuration. Your old key no longer works. A new key — cut to the new pin pattern — is all that will open the lock from now on.

The lock hardware stays. The door stays. Only the pin pattern changes.

Best for:

• Moving into a new apartment or villa in Dubai
• Lost or stolen keys
• End of tenancy (old tenant's keys become useless)
• Relationship or staff change where you shared keys

What Is Lock Replacement?

Lock replacement removes the entire lock mechanism — cylinder, housing, handle, and all — and installs a new one. It costs more and takes longer but gives you the opportunity to upgrade to a higher security grade.

Best for:

• Physically damaged or broken locks
• Worn-out mechanisms that no longer turn smoothly
• Upgrading from a basic lock to a deadbolt or digital lock
• Standardising all locks in a villa to one master key system

Cost Comparison in Dubai

| Service | Cost Per Lock | Time Required | |---|---|---| | Rekeying (existing cylinder) | AED 60–150 | 15–20 min per lock | | Lock replacement (same grade) | AED 150–350 | 30–45 min per lock | | Lock replacement (upgrade to deadbolt) | AED 250–500 | 45–60 min per lock | | Digital lock installation | AED 400–900 | 60–90 min per lock |

For a standard Dubai apartment with two locks (main door + bedroom), rekeying both costs AED 150–250 versus AED 400–700 for full replacement. The security outcome is identical.

The One Situation Where Replacement Is Always Better

If your building was broken into and the lock was forced open, the cylinder and housing may be subtly bent or cracked. A damaged lock cylinder doesn't hold rekeyed pins correctly and can fail under load. In this case, replacement is not optional — it's necessary for the lock to function reliably.

Can You Rekey Any Lock?

Most pin tumbler locks used in Dubai apartments and villas — Yale, Abloy, Cisa, Keso — can be rekeyed. Very cheap padlocks and some inexpensive cam locks are not rekeying-friendly; replacement is often cheaper. A locksmith can tell you within seconds which category your lock falls into.

Frequently Asked Questions

After moving into a new rental in Dubai, should I rekey or replace the locks? Rekey. It's faster, cheaper, and renders any copies of the previous tenant's key completely useless. RERA guidelines don't mandate it, but it's prudent. The landlord is typically not obligated to pay, so budget AED 150–300 for an apartment.

Can a locksmith in Dubai rekey a lock without the original key? Yes, though it takes a bit longer. The locksmith picks or disassembles the lock to remove the cylinder, then rearranges the pins. No original key is required.

How long does rekeying take in Dubai? 15–20 minutes per lock once the locksmith is on site. A two-lock apartment takes about 30–40 minutes total.

Is rekeying as secure as replacing the lock? Yes — as long as the existing lock hardware is in good condition. The security of a pin tumbler lock comes from the pin pattern, not the housing. Rekeying changes exactly what matters.