Cylinder snapping takes under 60 seconds and makes almost no noise. It is the most common break-in method in London — and a single upgrade from £65 stops it. Here is how the attack works and what prevents it.
What Is Cylinder Snapping?
Cylinder snapping is the technique most frequently used by residential burglars across London and the UK. The method: apply leverage (typically mole grips or a screwdriver used as a lever) to the euro cylinder protruding from a door face. The cylinder snaps at its midpoint. The inner section is then turned with a flathead screwdriver, opening the door in under 60 seconds with minimal noise.
Why Standard Euro Cylinders Are Vulnerable
The euro cylinder — found in virtually all UPVC doors and most modern composite and wooden doors — has a structural weak point at its centre. The key entry sits on the outside; the cam that opens the door sits inside. The midpoint between them is the thinnest section of the cylinder body and offers no resistance to a focused lateral force.
Standard cylinders from budget brands offer no meaningful resistance. The Metropolitan Police and UK insurance industry have both identified cylinder snapping as the primary residential burglary method in urban areas.
How Anti-Snap Cylinders Stop the Attack
TS007 3-star rated anti-snap cylinders incorporate a designed break point that defeats the technique. When force is applied, the outer section snaps away — but only the outer casing is lost. The internal mechanism and door cam remain completely intact. Without the internal section, the door cannot be opened.
The best anti-snap cylinders — Ultion, ERA Fortis, Yale Platinum 3-star and ABS Master — additionally resist picking, drilling, bumping and key extraction attacks.
How to Check Your Cylinder
Look at the cylinder from outside. Standard cylinders have no certification markings. TS007 or 3-star anti-snap cylinders display a certification mark on the cylinder body. The simplest check: call us and we will identify it in two minutes.
The Cost of Not Upgrading
The average residential burglary results in £3,000–£4,000 of loss, plus insurance excess and the psychological impact. Anti-snap cylinder upgrades start from £65 per cylinder installed including a TS007 3-star Ultion, ERA or Yale Platinum cylinder.
For most South London homeowners, a single front-door cylinder upgrade is the highest-return security investment available. Call 07984 547185 for same-day fitting across Dulwich and South London.