In short:
- Read your estate's conduct rules and architectural guidelines before changing anything visible from outside. Some estates restrict security gates, burglar bars, finishes and even door styles.
- A lock's packaging tells you little. Look for the maker's data sheet: SABS approval, the number of levers on a lever lock, and the EN 12209 classification on many imported locks.
- Multipoint locks only perform when the door is square and the keeps line up. Alignment comes first.
- Smart locks bring code management for staff and visitors, but check the door thickness and backset they need, how they're powered, and what happens when the battery runs flat.
- Sliding and stacking doors deserve their own plan: anti-lift hooks, a keyed lock and sound rollers.
Start with the estate's rules
Estates protect the look of the street, and many govern exterior changes through a homeowners' association, a design or aesthetics committee, or a controlling architect. Before you buy hardware, find out what your estate allows.
As one example, the published architectural and development rules of Copperleaf Country Estate list external burglar bars and Trellidor-type sliding gates among prohibited window items, ban decorated and carved doors, and require plans to go through the Association's approval process. Other estates take different approaches, so treat that as a reminder to check, not a rule for your estate.
In practice:
- Get the current conduct rules and architectural guidelines from your HOA or managing agent.
- Look for anything on security gates, burglar bars, external door finishes, handle colours, keypads or cameras on the façade.
- Ask whether a like-for-like lock change needs approval. Swapping a cylinder or lock body inside the door usually changes nothing visible, but a new handle set or a keypad might.
- Keep any approval letter with your house papers.
What's on your doors now
Most estate homes have a mix of lock types. Knowing which is which makes it much easier to plan.
| Lock type | How to recognise it | Typical upgrade |
|---|---|---|
| Lever mortice lock | Lock case set into the door edge; a key with a flat bit | A lock with more levers and a sturdier case, or a cylinder-type mortice lock |
| Euro-profile cylinder lock | A key barrel held by a long screw through the door edge | A better cylinder in the existing lock, if the lock body is sound |
| Multipoint lock | Long faceplate down the door edge; lift the handle to lock | Re-align and service, or replace the gearbox or whole mechanism |
| Sliding door hook lock | Hook bolt in the edge of an aluminium or timber slider | A keyed hook lock with anti-lift hooks, plus extra locking points |
| Rim nightlatch | Box lock on the inside face of the door | Add or replace with a deadlocking mortice lock on outside doors |
If you're not sure what you have, a photo of the door edge and the key is usually enough to tell.
How to read lock grades
"Heavy duty" and "high security" on a box aren't standards. What's worth checking:
- SABS approval. Locally sold locksets are often marked SABS approved. UNION's Gower lever locksets, for example, come in 2-, 3- and 4-lever versions, all listed as SABS approved and suited to external doors.
- Lever count. More levers give more key variations, which is why the higher counts are the usual choice for outside doors. Check the maker's specification rather than assuming.
- EN 12209. Many European locks carry this classification. It's an 11-digit code that rates things such as category of use, durability, security (seven grades for resistance to physical attack) and the door application the lock is designed for, such as hinged or sliding, rim or mortice.
Ask for the data sheet before you buy. If a supplier can't tell you what standard a lock meets, that tells you something too.
Multipoint locks: what to know
A multipoint lock throws bolts or hooks at several points along the door edge when you lift the handle or turn the key. Locking at several points rather than one helps keep a tall door tight against its frame along its whole height.
They depend on alignment. If the handle is hard to lift or the key won't turn fully, the usual cause is that the locking points no longer meet their keeps, not that the mechanism is broken. A simple test: with the door open, lift the handle and turn the key. If it's smooth open and stiff shut, the door or keeps need adjusting. Forcing the handle can damage the gearbox, which turns an adjustment into a replacement.
Smart and keypad locks
For a household with domestic staff, a garden service or regular contractors, a keypad or app-controlled lock means you can give each person a code and delete it when they stop working for you, rather than wondering who still has a key. Before you choose one, check:
- Fit. Smart locks are made for a set range of door thicknesses and backsets. One Yale digital kit, for instance, is specified for a 60mm backset and doors between 32mm and 45mm thick. A thick estate front door may be outside the range.
- Power. Most run on batteries. The same Yale kit uses four AA batteries with a 9V emergency backup. Know how the low-battery warning works and what you'd do if it were ignored.
- Mechanical override. Find out whether there's a key backup, and where that key will live.
- Users and visitor codes. Look for enough user slots and time-limited visitor codes, and learn how to delete a code.
- Weather. An outside keypad faces summer storms and strong sun. Check the maker's operating range.
- Appearance. A keypad on the façade may need HOA approval.
A smart lock is still a lock in a door. Fit it to a sound door and frame, and keep a mechanical lock or a locked security gate where your estate allows one.
Sliding and stacking doors
Patio sliders and stacking doors open onto the garden or the fairway in many estates, and they deserve as much thought as the front door. Yale's sliding door lock, made for aluminium, uPVC and timber sliders, lists anti-lift hooks and an anti-slam button that protects the hook from damage, and comes in a version with an external key. Those are the features to look for.
Before upgrading, check what you have:
- Does the hook meet its keep squarely when the door closes, or does it scrape?
- Do the rollers run smoothly, or has the panel dropped in its track?
- Is the track clear of grit and leaves after storms?
- Can the lock be keyed, or is it a thumb-turn only?
A worn roller lowers the panel, and a lowered panel misses its keep. New rollers and an aligned keep sometimes do more than a new lock.
Planning the upgrade with us
Work through the house door by door: the front door, the garage interleading door, patio sliders, any staff or cottage entrance, and the security gates. Decide what each needs, then check the list against your estate's rules.
Our lock replacement service fits new locks, cylinders and sliding door locks, and we repair hardware that's worth keeping through lock repair. We don't cut or copy keys: new locks come with the keys supplied by the maker. As a mobile locksmith in Centurion, we come to the house; let the guardhouse know a locksmith is coming and have your ID or proof of residence ready.
The call-out fee is R250. The technician looks at each door and gives you a quote on site before any work starts, and you can pay by EFT, cash or card. Windows are a separate job; see window locks and handles that won't close. And if a door is binding rather than badly locked, read doors and locks sticking after summer rain first.
Questions
Do I need HOA approval to change a lock?
A like-for-like change inside the door often doesn't alter anything visible, but rules differ from estate to estate. Changes you can see from outside, such as handles, keypads, security gates or burglar bars, are more likely to need approval. Check your estate's conduct rules or ask the managing agent before you buy.
Is a smart lock enough on its own?
It depends on the door, the lock and what else protects that entrance. A smart lock adds control over who can get in; it doesn't make a weak door or frame stronger. Many owners keep a mechanical lock or a locked security gate as well, where the estate allows it.
Can you upgrade the locks without changing the doors?
Usually, yes. Many upgrades are a better cylinder, lock body or sliding door lock in the existing door. If the door is split, swollen or badly out of square, we'll tell you when we quote, because a new lock won't perform in a door that doesn't close properly.
Need a locksmith to look at it?
If this hasn't solved the problem, our lock replacement service covers it. We're a mobile locksmith in Centurion, so we come to your door. Areas where this comes up often include Copperleaf Golf Estate.
Sources and further reading
- Copperleaf Country Estate: Architectural and development rules (PDF) — external burglar bars and Trellidor-type sliding gates listed as prohibited; decorated and carved doors prohibited; plan approval through the Association
- ASSA ABLOY South Africa: UNION locksets — Gower 2-, 3- and 4-lever locksets and euro-profile locksets, listed as SABS approved and suited to external doors
- UNION (UK): EN 12209 — 11-digit classification of locks: category of use, durability, seven security grades, door application
- Emerald Doors: How to adjust a multipoint door lock — multipoint locks engage at several points by lifting the handle or turning the key; misaligned points cause jamming
- ASSA ABLOY Australia: Yale digital locks catalogue (PDF) — example smart lock: 60mm backset, 32mm to 45mm door thickness, AA batteries with 9V backup, up to 20 users, timed visitor codes
- ASSA ABLOY: Yale sliding door lock — for aluminium, uPVC and timber sliding doors; anti-lift hooks; anti-slam button; external key version available