What is a lock-snapping attack?

Lock snapping is a burglary technique where an intruder uses physical force to snap a standard euro cylinder at its narrowest point, exposing the internal mechanism and allowing the door to be opened in seconds. It requires no specialist tools and is now the most common method used against UPVC and composite doors in the UK.

What does TS007 3-star mean?

TS007 is the British Standard for attack-resistant door cylinders. A 3-star rating means the cylinder has passed independent tests for snap, pick, drill and bump attacks. It is the highest level of cylinder protection available for domestic properties and is recognised by most UK home insurers.

Can I fit an anti-snap cylinder myself?

The cylinder itself is available to buy, but fitting it correctly is important — the wrong size or an incorrect installation can leave the lock vulnerable or cause the door mechanism to fail. We supply and fit TS007 3-star cylinders in Ipswich, usually within the same day, and ensure the sizing and fit are exactly right for your door.

Anti-snap TS007 euro cylinder installed in a UPVC door in Ipswich

Anti-Snap Locks Ipswich

Lock snapping is now the most common burglary technique used against UPVC and composite doors in the UK. A standard euro cylinder can be snapped in seconds using basic tools available at any hardware store — no forced entry noise, no damaged frame. If your door has a standard cylinder, it is vulnerable.

Local Locksmith Ipswich supplies and fits TS007 3-star anti-snap cylinders across Ipswich and Suffolk. It's one of the most cost-effective security upgrades you can make to your home, and we carry stock on the van for same-day installation.

What Is Lock Snapping?

Lock snapping exploits a weak point built into most standard euro cylinders. When excessive force is applied to the outside section of the cylinder, it snaps cleanly at a pre-designed break point — exposing the cam that holds the lock closed and allowing the door to be opened with a screwdriver.

The technique takes under 30 seconds, produces minimal noise, and leaves the door frame entirely undamaged — making it very difficult to detect from outside the property. Police across Suffolk have recorded consistent numbers of snapping attacks each year.

A TS007 3-star anti-snap cylinder is the single most impactful security upgrade for any home with a UPVC or composite door.
Local Locksmith Ipswich

How Anti-Snap Cylinders Work

TS007 3-star cylinders are engineered to defeat snapping attacks in two ways. First, they are designed to snap at a controlled point that does not expose the internal mechanism — so even if the outer section breaks, the lock remains secure. Second, the highest-rated cylinders include a sacrificial zone that detaches cleanly and leaves the bolt fully engaged.

TS007 3-star rating — independently tested for snap, pick, drill and bump attacks
Anti-pick pins — security pins that prevent picking even with specialist tools
Anti-drill protection — hardened steel inserts that destroy drill bits on contact
Anti-bump — pin configuration that resists bump key attacks
Insurance recognition — most UK home insurers recognise TS007 3-star as the minimum standard

TS007 3-star anti-snap cylinder fitted to a composite door in Ipswich

Close-up of a snap-resistant euro cylinder correctly sized and installed in Ipswich

Same-Day Anti-Snap Upgrade in Ipswich

We carry a range of TS007 3-star cylinders on the van in common sizes to fit UPVC, composite and timber doors. When you call, we'll confirm the cylinder size you need over the phone or measure it on arrival. Most upgrades take under 30 minutes and require no damage to the door.

If you're also considering wider security improvements, see our high-security locks service or our British Standard locks page. For doors with existing damage or a failed mechanism, our lock repair service can deal with both at the same time.