A Lock Change in Sandton Usually Means Only the Cylinder
A lock change usually means a cylinder change, and that distinction matters because it is far less invasive than most people expect. A retaining screw comes out of the door edge, the old cylinder slides out, the new one slides in, and the handles, the plate and the door itself are untouched. Our locksmith for lock change page sets out what that involves on each door type.
The bulk of the visit is not the swap. It is measuring correctly, choosing the right length, and testing afterwards — because a cylinder protruding past the handle plate is a security weakness in its own right, and one that is too short binds against the mechanism.
There is also a question worth settling before anybody is booked: whether you need a change at all. Where the cylinders are sound and the concern is who holds a key, reconfiguring them reaches the identical outcome for less. This page covers both, plus the door count that decides most of the quote.
Need the locks changed in Sandton?
Call with a rough door count and what has prompted it. You get a firm figure before anybody is dispatched, and the work is done at your address.
Change It, or Rekey It?
These reach the same security outcome by different routes, and the cheaper one is right more often than people assume. Both prices are given so you can choose rather than be steered.
| Rekey the existing cylinders | Replace the hardware | |
|---|---|---|
| What happens | The cylinder you already have is reconfigured so every previously issued key stops working. The hardware stays in the door. | The cylinder comes out and a new one goes in, measured to the door and tested before the visit ends. |
| When it is right | The hardware is sound and the worry is who holds a key — after a move, a departed tenant, a lost set or a contractor who never returned one. | The mechanism is worn past reliability, under-specified for its door, or has been forced at some point. |
| Appearance | Unchanged. Nothing about the door looks different afterwards. | New hardware, matched to the existing preparation so the door is not cut about. |
| Cost | The lower figure, because you are paying for labour rather than for parts. | Higher, and worth it in the three cases above rather than as a default. |
Where the fault is neither — a stiff lock that is simply dry and full of grit — a repair is cheaper than both, and it is a genuinely common outcome rather than a token option. Our locksmith for lock repair page sets out the thirty-second test that tells you which of the three you actually have.
Counting the Doors Before You Book
The single commonest reason a quote changes on the day is that the door count was wrong on the phone, and it is entirely avoidable.
People count the front door. A Sandton property typically has a front door, a kitchen or scullery door, a garage side door, a patio slider and at least one gate with its own key. Walk the perimeter before booking, open everything, and note what actually has a lock in it. Both the price and the stock loaded on the van follow that number, which is the same reason our locksmith Sandton operators ask for it rather than guessing.
That walk is also the moment to decide whether the set should run on one key. Handled during the same visit it costs a fraction of adding it later, and on a property with five or six separate keys it is the change people say afterwards they should have made years earlier. Our residential locksmith Sandton team will walk it with you if you would rather not guess.
Where a door has no working lock at all — common on a back door after a key went missing years ago and nobody replaced it — that is an installation rather than a change, because the preparation has to be created rather than inherited. Our locksmith for lock installation page covers what a door will actually support.
What Prompts a Lock Change
Six situations that account for most planned lock work in Sandton, and what each one actually calls for.
You have just moved in
The number of working keys to your new home is genuinely unknown. Reconfiguring the existing cylinders usually reaches the same outcome for less than replacement.
A tenant has moved out
The risk is rarely the outgoing tenant. It is the cleaner, the partner, the housesitter and the agent who held a set through the marketing period.
A set of keys has been lost
Somewhere out there is a working key to the property. If anything on the ring identified the address, that matters considerably more.
Someone tried to force the door
A forced cylinder is replaced rather than serviced. Its internals are strained even where the key still turns, and the frame needs assessing too.
The lock keeps failing
Usually a specification fault rather than bad luck. Hardware too light for its door keeps failing however well it is maintained.
Too many separate keys
Five or six keys for one property is a nuisance rather than security. Bringing the set onto one key during a visit costs a fraction of doing it later.
What Happens on the Visit
Five steps. The measuring and the testing take longer than the swap, and both matter more.
- Step 1
Every door is checked
Including the ones that were not mentioned on the phone. It is better to find the garage side door now than after a price has been agreed.
- Step 2
Change or rekey is decided with you
Both options are priced. Where the cylinders are sound and the concern is key holders, the cheaper route is recommended even though it earns us less.
- Step 3
Cylinders are measured, not estimated
A cylinder protruding past the handle plate is a weakness in itself and one that is too short binds. Correct length is most of the job.
- Step 4
Fitted and adjusted
Including the keep. A lock that works with the door open and needs a shove with it closed has been inserted rather than installed.
- Step 5
Tested and handed over
Operated from both sides, open and closed. Every key is handed to you, nothing is retained and no record of the key is kept.
Not sure whether you need a change or a rekey?
Describe the situation on the phone. Both are priced and you choose — the cheaper answer is recommended when it is the right one.
Cylinder Grades Worth Two Minutes
You will be offered a choice, and the differences are genuinely worth understanding rather than being decided for you at the door. The same grades apply on a locksmith for lock replacement job, where the labour is being paid for anyway and the upgrade costs less than doing it separately later.
- Standard cylinder
- Perfectly adequate on an internal or low-risk door. Paying for more grade there buys nothing you will ever use, and saying so costs us the upsell.
- Anti-snap cylinder
- Engineered to break at a chosen point under attack, leaving the locking mechanism intact behind it. On an accessible front door that is a meaningful improvement for a modest difference.
- Restricted profile
- A new key can only be issued against your written authorisation. It suits any property where staff, tenants or contractors come and go, because a set cannot quietly become two sets.
- The frame, whichever you choose
- A very good cylinder going into soft or split timber achieves very little. Reinforcing the keep so it spreads load frequently matters more than the grade above it.
How the Visit Works
Operating commitments rather than claims, and every one of them is visible during the job itself.
Every key produced during the visit is handed to you at the end of it. Nothing is retained, nothing is filed, and no record of the key is kept — on one cylinder or on a whole property.
Read the reviews on our Google Business ProfileThe Doors People Forget, and Why They Matter
A front door is the door people think about. It is rarely the door that gets tried.
A back or scullery door is out of sight from the street and frequently carries the lightest hardware on the property, because it was never thought of as the main entrance. A garage side door is the same, with the added problem that once somebody is inside the garage they are working out of view entirely. Both are worth including in any change rather than leaving for later, and our locksmith for lock repair team checks them as a matter of course.
The patio slider is the third. Most sliders carry a convenience catch rather than a lock — it holds the door closed, not shut — and many can be lifted clear of the track even while latched. Anti-lift measures and a secondary lock at the correct height are inexpensive and change something real.
And the gate is the fourth. It lives outdoors permanently, it is operated by everybody who comes to the property, and it is very often fitted with a cylinder chosen for a sheltered interior door. Our locksmith for gate locks page explains why that mismatch fails so predictably.
Related Locksmith Services in Sandton
The work that most often sits alongside a lock change, or replaces the need for one.
Locksmith for lost keys
Existing cylinders reconfigured so previously issued keys stop working, without replacing the hardware in your doors.
locksmith for lock rekeyLocksmith for lock repair
Stiff and binding mechanisms stripped, cleared and reset — cheaper than a change and the right answer more often than people expect.
locksmith for lock repairLocksmith for lock installation
A locking point created where there was none, with the door and frame assessed before any hardware is chosen.
locksmith for lock installationResidential locksmith
Every entry point assessed as a set — front, scullery, garage side door, slider and gates — rather than one door at a time.
residential locksmith SandtonLocksmith for home lockout
The urgent version, including what to check before anybody is dispatched and how the opening actually works.
locksmith for home lockoutEmergency locksmith
How urgent work is dispatched and ordered, including anything that leaves a property insecure overnight.
emergency locksmithWalk the property, then call
A rough door count is all it takes to get a firm figure. Call or WhatsApp and the work is done at your address.
When a Lock Change in Sandton Is the Right Call
A lock change Sandton property owners choose usually comes down to one question: is the hardware itself no longer trustworthy, or does it still work well enough to keep? If the mechanism is sticking, loose, corroded, or visibly worn, a full replacement is often the smarter move because worn or damaged lock hardware can fail without much warning. The same applies after a move into a new property in Sandton, when you cannot be certain who still has access or whether older locks were ever maintained properly. In those situations, a local Sandton Locksmith can restore control quickly and cleanly. By contrast, if the lock body is sound and the issue is mainly about access control, a lighter fix may be enough, and the right Locksmith in Sandton will explain the replace vs rekey choice before work starts.
That decision matters because not every door needs the same response: a unit that is structurally sound may only need adjustment, while a compromised cylinder, damaged latch, or past forced entry usually points to a full change. An emergency Locksmith Sandton callout is especially useful after break-ins, failed attempts at entry, tenant turnover, or when a key turns but the door still feels unreliable. The goal is not just to fit new hardware; it is to leave you with a clear, practical security outcome for the property you actually have. If you are unsure when to change locks, a quick inspection from a Locksmith near Sandton can separate routine wear from a real security problem and tell you whether a lock change is justified.