Rekeying vs Changing Locks: Which Is Better for Your Property?

When comparing rekeying vs changing locks, the better choice depends on the condition of your existing hardware and the level of security you need. Rekeying is generally suitable when your locks work properly but you want old keys to stop working. Changing the locks is usually better when they are damaged, unreliable, outdated or no longer suitable for your Adelaide property.

What Is the Difference Between Rekeying and Changing Locks?

Although both services can change who has access to your property, they involve different types of locksmith work.

When we rekey a compatible lock, we change the internal configuration of its cylinder. The existing lock remains installed, but its old keys no longer work. We then supply you with new keys that match the updated configuration.

Changing a lock involves removing the existing lock and installing new hardware. Depending on your needs, this may include a new cylinder, deadlock, entrance set, digital lock or another suitable locking system.

The main distinction is simple: rekeying changes the key that operates your existing lock, while lock replacement changes the hardware itself.

When Is Rekeying the Better Option?

Rekeying may be the more practical option when your current locks operate correctly and provide an appropriate level of security, but you are concerned about who may possess an old key.

You may want to rekey your locks when:

• You have recently moved into a new home

• Your keys have been lost or stolen

• You do not know how many duplicate keys exist

• A former tenant has not returned every key

• A previous employee or contractor may still have access

• You want compatible locks to operate with one key

• You need to change access without replacing functional hardware

Because suitable existing hardware is retained, rekeying is often less expensive than purchasing and installing complete replacement locks. However, the final cost depends on the number and type of locks, their condition and whether compatible components are available.

Rekeying will not repair a damaged lock or improve the physical strength of outdated hardware. If the lock itself is the problem, changing it may provide a better result.

When Should You Change the Locks?

Changing the locks is usually more appropriate when the existing hardware is damaged, unreliable or unsuitable for your current security needs.

You should consider lock replacement if:

• The lock sticks, jams or is difficult to operate

• The key turns without locking or unlocking the door correctly

• The cylinder or lock body is damaged

• The door has been affected by forced entry

• The hardware is heavily worn or corroded

• Replacement components are no longer available

• You want to install a digital or smart lock

• The existing lock does not provide suitable security

• You are changing the purpose or access requirements of the property

New hardware can address mechanical problems while allowing you to select a locking system that better suits the door, building and people using it.

Before replacing a lock, we assess the door and existing installation. The new hardware must be compatible with the door’s construction and properly installed to operate reliably.

Is Rekeying as Secure as Changing the Locks?

Rekeying can effectively prevent old keys from operating a compatible lock. If your existing hardware is in good condition and appropriate for the property, rekeying may be all you need to regain control over access.

However, rekeying does not upgrade the strength, design or condition of the lock. A worn or unsuitable lock remains worn or unsuitable after its key configuration is changed.

Changing the lock allows you to replace ageing hardware or upgrade to a different locking system. It may therefore provide a greater security improvement when the existing lock no longer meets your needs.

At Henry’s Locksmith Service, we consider both key control and the condition of the hardware before discussing the most appropriate option with you.

Which Option Is Better After Losing Your Keys?

If your key has been lost or stolen, making a duplicate will not prevent the missing key from opening the door. Rekeying a suitable lock can resolve this issue by making the previous key unusable.

Rekeying may be sufficient when the lock works properly and you are satisfied with its current level of security. Complete replacement may be preferable if the lock is also damaged, worn or overdue for an upgrade.

Tell us where the key may have been lost and whether it was attached to anything showing your address. If your keys and identification disappeared together, treat the situation as a more immediate security concern.

Should You Rekey or Change Locks After Moving?

When you move into an existing Adelaide home, you may not know how many copies of the keys were previously made. Former owners, tenants, cleaners, tradespeople or neighbours may have received copies at some point.

If the installed locks are compatible, functional and suitable for the property, rekeying can prevent all previous keys from working without requiring complete replacement hardware.

If the locks are damaged, difficult to use or do not meet your requirements, moving into the property can be a practical time to replace them. We can assess each entry point rather than assuming every lock needs the same solution.

What Should Real Estate Agencies Consider?

If you manage rental or commercial properties, your decision should consider both the condition of the locks and the reason access needs to change.

Rekeying can be suitable at the end of a tenancy, after an unreturned key or when a contractor should no longer have access. Changing the lock may be necessary following forced entry, repeated mechanical problems or a security upgrade.

Before arranging the work, confirm:

• Which doors and locks are affected

• Whether the property is occupied or vacant

• Whether all previous keys must stop working

• How many new keys are required

• Whether the property uses a keyed-alike or master key system

• Who is authorised to receive the new keys

Accurate instructions help maintain clear key control and prevent unrelated locks from being altered unnecessarily.

Can All Locks Be Rekeyed?

Not every lock can be rekeyed. Suitability depends on the lock’s design, condition and available components. Some locks may be sealed, obsolete, damaged or uneconomical to reconfigure.

Digital locks and electronic access systems work differently. Instead of mechanically rekeying the cylinder, access may be changed by deleting or replacing a PIN, card, fob or other credential.

Restricted and master key systems may also have specific authorisation and component requirements. These systems should be assessed before changes are made.

Get the Right Solution for Your Adelaide Property

In the rekeying vs changing locks comparison, neither option is automatically better for every property. Rekeying is often suitable when you need to prevent old keys from working but your current locks remain secure and reliable. Changing the locks is generally better when the hardware is damaged, outdated or no longer appropriate.

Henry’s Locksmith Service provides lock rekeying and lock repairs and replacement for residential and commercial properties across Adelaide. We have more than 10 years of experience, are fully insured and are a member of the Master Locksmiths Association of Australasia.

Call 08 7135 8065 to have your locks assessed and discuss the most suitable option for your property.