What Happens to Locks During a Burglary or Attempted Entry
In Camberwell, as across much of inner south-east London, most front doors carry one of two set-ups: a Yale-type nightlatch paired with a 5-lever mortice deadlock, or a uPVC and composite door fitted with a multipoint locking system and a euro cylinder. Each presents a different vulnerability. Cylinder snapping is one of the most common forced-entry methods used on uPVC and composite doors — an intruder applies leverage to snap the euro cylinder at its weak point, then retracts the locking mechanism by hand. If your door shows a protruding or damaged cylinder, a fresh scratch pattern around the keyway, or a cam that moves without a key, it has almost certainly been attacked.
On older timber doors, the damage is usually more visible: a split doorframe, chisel marks around the mortice lock faceplate, or a bent striking plate where the deadlock bolt engages. Even if the intruder did not get in, a lock that has been attacked is compromised and should be replaced rather than patched. The same applies after a confirmed burglary — there is no way to know whether a key was taken from inside the property during the incident, so a full lock change is the only way to restore genuine security.




