The euro cylinder is the door
On the vast majority of London front doors — uPVC, composite, and most timber — the entire security of the door rests on the euro-profile cylinder. The handle is cosmetic. The multipoint mechanism is robust but only as strong as the cylinder it accepts. If the cylinder fails, the door is open.
Cylinders fail in four ways under attack: snapping, bumping, picking and drilling. A ‘snap attack’ — where the cylinder is gripped with mole grips and twisted until it shears — needs no specialist tools and, on a vulnerable cylinder, can take seconds. Police forces and the Master Locksmiths Association have warned about it for over a decade. Read more in lock snapping explained.
What 3-star actually means
The British Standard for euro cylinders is TS007. It awards stars: 1, 2 or 3. To get 3 stars, a cylinder must independently defeat all four attack methods in standardised testing. To get 1 star, it only has to defeat some of them — and in real-world installations, a 1-star cylinder is meant to be paired with a 2-star handle to make up the rating.
That works on paper. In practice, handles get changed. Doors get refurbished. The 2-star handle is replaced by something off Amazon and the door silently drops back to 1-star without anyone noticing.
A 3-star cylinder doesn’t have that problem. It is independently rated. The handle can be anything. The cylinder alone meets the standard.
Why Avocet ABS specifically
There are several 3-star cylinders on the UK market — we compare them honestly in anti-snap cylinders compared. We chose Avocet ABS because:
- It holds Sold Secure SS312 Diamond as well as TS007 3-star. Diamond is the highest grade Sold Secure awards a cylinder.
- It carries Secured by Design (Police Preferred Specification) accreditation.
- Avocet lists the current ABS Master against the updated TS007-1:2024 standard, which adds freezing and gluing attacks to the tests.
- Avocet describes a cam that locks down inside a hardened core when the cylinder is snapped, so the lock stays locked even after an attack.
- The range covers standard euro doubles and thumbturn versions in a wide spread of lengths, so we can size to the door rather than make do.
- Keys come with a registration card, so copies can be controlled.
Why we don’t carry alternatives
If we stocked five brands of cylinder, we would fit five brands of cylinder — and the cheapest ones, when the customer chose price over rating, would underperform. The honest version of this trade is to carry the best product and quote its real cost. That’s what we do.
We are not the cheapest locksmith in London. We are not trying to be. We are trying to be the locksmith you call when you want the cylinder problem solved once and never thought about again.
What you get
- An Avocet ABS cylinder, sized to your door and fitted in one visit.
- Three keys for your new cylinder.
- An itemised written invoice naming the product and its ratings — for your insurer, landlord or freeholder.
- Avocet’s own manufacturer guarantee, on Avocet’s terms.