Bankstown Locksmith Service

Not every home in the Bankstown area is new. Behind the busy roads, the streets of Punchbowl, Bankstown and Yagoona still hold federation and inter-war cottages, post-war brick and weatherboard homes, and houses that have been lovingly maintained by the same family for decades. Many of these homes still have their original timber doors and, in some cases, their original locks.

Older doors need a different approach from modern ones. A lock that suits a new townhouse door is rarely the right answer for a seventy-year-old timber door. This guide explains the locks you are likely to find on older homes, the common problems, and how to improve security without damaging the character of the door.

The locks you find on older doors

Mortice locks. A mortice lock sits inside a pocket cut into the edge of the door. Only the keyhole, handle and faceplate show. Older mortice locks often use a lever mechanism and a large, simple key. They were the standard on many Australian homes for decades.

Rim locks and nightlatches. These are mounted on the inside face of the door, with a cylinder showing on the outside. Many older homes had a rim nightlatch added to the front door at some point.

Box locks. Very old doors sometimes have a large surface-mounted box lock on the inside. These are now uncommon in the Bankstown area but do appear on some original federation cottages.

Later additions. Most older homes have had locks added over the years, often a modern deadlock above an original mortice lock. The result can be a mix of hardware from several decades on a single door.

Common problems with older doors

Doors that have dropped. Over decades, hinges wear and doors sag. The bolt no longer lines up with the strike, so the key is hard to turn or the door has to be lifted to lock.

Frames that have moved. Older timber frames shrink, swell and shift. A door that locked easily in winter may bind in summer, or the other way around.

Worn lever mechanisms. Old lever mortice locks wear with use. Keys may catch, levers may stick, and the bolt may not throw fully.

Broken springs. Internal springs in older locks eventually fatigue. A handle that no longer returns or a latch that does not spring back is often a spring problem.

Lost original keys. Old mortice keys are often lost, and copies can be hard to find.

Weak security by modern standards. Some older lever locks have few levers and can be opened more easily than a modern deadlock.

Repair first

Our approach with older doors is to repair first wherever it makes sense.

An original mortice lock can often be taken out, cleaned, have springs or levers replaced and be refitted. That keeps the door looking original, avoids cutting new holes, and is often cheaper than a new lock.

Many locking problems on older doors are not really lock problems. Adjusting the hinges, packing a sagging door, or moving the strike a few millimetres can make a stiff lock work smoothly again. Our lock repair page explains these common fixes.

When an older lock should be replaced

Repair is not always the right answer. Replacement makes sense when:

the lock is broken beyond practical repair;
parts are no longer available;
the lock offers very little security and is on an external door;
the door has been damaged in a break-in;
you need a lock that meets a specific requirement, such as an insurer's request.

When we replace a lock on an older door, we try to choose hardware that fits the existing mortice pocket and keyhole position. That avoids filling and re-cutting the door, which can weaken old timber and leave visible patches. Our lock replacement page explains how we match locks to doors.

Improving security without spoiling the door

You do not have to choose between character and security. These options work well on older homes.

Upgrading the mortice lock. Modern mortice locks are available in sizes that suit many older pockets. A higher-security mortice deadlock can be fitted with minimal change to the door.

Adding a well-placed deadlock. If the door has only an old latch, a deadlock fitted above it adds strong security. Choose a finish that suits the existing hardware.

Reinforcing the strike. A heavier strike plate fixed with long screws into the frame makes the biggest difference against kicking. It is barely visible once the door is closed.

Servicing the hinges. Solid hinges with long screws keep the door square and make the lock work properly.

Securing the back door. Older homes often have back doors with very basic locks. These are usually less visible and deserve an upgrade before the front door.

Security screen doors. A security screen door in a sympathetic style adds a strong layer while leaving the original door untouched. Our security locksmith page covers screen doors.

Heritage-listed homes

If your home is heritage-listed or in a heritage conservation area, there may be rules about changing the visible parts of the door, such as handles, escutcheons and the door itself. The internal parts of a lock are usually not an issue, but it is worth checking with your council before making visible changes.

Choosing hardware that fits the original pocket and keeps the original handle and escutcheon is often the simplest way to stay within the rules.

Old keys and rekeying

Old lever mortice locks are not rekeyed in the same way as modern pin-tumbler locks. In some cases, the levers can be changed to suit a new key. In others, the practical choice is to replace the lock body while keeping the external hardware.

If you have moved into an older home and do not know how many keys exist, ask a locksmith to look at each lock. They can tell you which locks can be changed to a new key and which would need replacing.

For modern cylinder locks added to older doors, normal lock rekeying works as usual.

Weather and older timber

Older timber doors are more affected by weather than modern doors. In Sydney's humid summers and wet spells, doors can swell and bind. In dry spells, they shrink and gaps open.

A few habits help:

keep the door's paint or finish in good condition, including the top and bottom edges;
avoid forcing a lock that suddenly becomes stiff, as this can damage it;
ask a locksmith to adjust the strike rather than planing the door yourself;
use a dry lubricant, not oil, in the lock.

Things to avoid

Drilling new holes without a plan. Extra holes weaken old timber and can be hard to repair neatly.
Fitting a lock that does not suit the pocket. Forcing a modern lock into an old pocket can split the door.
Removing original hardware unnecessarily. It is often worth keeping, especially on heritage homes.
Oiling old locks. Oil attracts dust, which gums up lever mechanisms.
Leaving a weak back door. The front door may look grand, but the back door is often the easier target.

Original hardware worth keeping

Many older homes have hardware that is worth keeping even when the lock inside needs work.

Escutcheons and keyhole covers. Brass or cast escutcheons give an older door much of its character. They can usually stay in place when a lock is repaired or replaced, provided the new lock's keyhole lines up.

Lever handles and knobs. Original handles can often be reused with a new lock body if the spindle size and position match. Where they do not, adaptors are sometimes available.

Hinges. Old hinges are usually heavier than modern ones. If they are worn, new pins or washers can sometimes restore them. Tightening or replacing their screws is often enough.

Door furniture on internal doors. Internal doors in older homes often have simple passage sets or privacy locks. These rarely need security upgrades and can usually be serviced.

Before throwing anything away, ask whether it can be reused. Keeping original hardware often saves money as well as character.

Questions to ask about an older door

Can this lock be repaired, or does it need replacing?
Will a new lock fit the existing pocket and keyhole?
Can I keep the original handle and escutcheon?
Is the problem the lock or the door?
What will make the back door as secure as the front?
Can the old lock be changed to a new key, or does the body need replacing?

A locksmith who works on older homes should be comfortable answering all of these clearly, and should explain the trade-offs between keeping original hardware and upgrading security.

Insurance and older locks

Some home insurance policies expect external doors to have deadlocks, or windows to have locks, before they cover a break-in. Older homes with original lever locks may not meet those expectations. Check your policy wording. If it asks for deadlocks, a mortice deadlock that fits the existing pocket, or a well-placed cylinder deadlock above the original lock, usually satisfies the requirement while keeping the door's character. Keep the locksmith's invoice as proof of what was fitted and when.

A typical older-home visit

When we visit an older home in Punchbowl or Bankstown, we usually:

check how each door opens, closes and locks;
look at the hinges, frame and strike;
assess each lock for repair, rekeying or replacement;
explain the options and costs before starting;
repair or replace as agreed, keeping original hardware where practical;
test every key and door before we leave.

The bottom line

Older and heritage doors deserve care. Many of their problems can be fixed with repair and adjustment rather than new hardware, and security can be improved without spoiling the character of the door. When replacement is needed, choose hardware that fits the existing pocket and suits the home.

If you have an older home in Bankstown, Punchbowl, Yagoona or nearby suburbs, call us on 02 5657 6414, 7 days from 7:00am to midnight, or request a quote through our contact page. We will look at your doors and explain the options plainly before any work starts. You can also read about our residential locksmith service.