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Home / High Security Cylinders

High Security Cylinders

We supply and fit both 1* and 3* high security cylinders for uPVC and composite doors — and convert wooden door deadlocks to take a Euro cylinder.

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iLock Security locksmith
1★ 1 Star CylindersTS007 Kitemarked
3★ 3 Star CylindersTop TS007 rating
Lock Upgrades

High Security Cylinders & Conversions

A weak cylinder can make your door an easy target. Upgrading your lock is one of the simplest ways to make your home safer.

1★ & 3★ High Security Cylinders

We supply and fit both 1* and 3* high security cylinders for uPVC and composite doors.

Wooden Door Euro Cylinder Conversion

If you have a wooden door, we can convert your deadlock to take a Euro cylinder — enhancing your security.

Ask About Upgrades
07428 086680
Star Ratings Explained

Which Cylinder Is Right For You?

Cylinders are rated under the TS007 Kitemark scheme. Here’s a simple guide to your options.

1★

1 Star Cylinder

A Kitemarked security cylinder — a solid upgrade from a basic lock.

  • uPVC & composite doors
  • Improved attack resistance
  • Pair with 2★ security handles for full 3★ protection
Recommended

3★

3 Star Cylinder

The top TS007 rating on its own — no special handles needed.

  • Highest cylinder security rating
  • Resists snapping, drilling, picking & bumping
  • Ideal for front and back doors

Wooden Door Conversion

Got a wooden door with an old deadlock? We can convert it.

  • Deadlock converted to take a Euro cylinder
  • Lets you fit a high security cylinder
  • Enhances your door's security
FAQs

Common Questions

Quick answers about upgrading your door cylinders.

Both are Kitemarked security cylinders. A 3* cylinder achieves the top rating on its own, while a 1* cylinder is usually paired with 2* security handles to reach the same overall protection. We’ll recommend the best option for your door and budget.

We supply and fit high security cylinders for uPVC and composite doors. Wooden doors with a traditional deadlock can be converted to take a Euro cylinder.

Yes. If you have a wooden door, we can convert the deadlock to take a Euro cylinder. This enhances your security and lets you fit a modern high security cylinder.

We measure your door on site so the new cylinder fits correctly — a cylinder that sticks out too far is a security risk. See our Problem Locks page to check your current lock.

Need A Locksmith? Call Us Today.

Open 8.30am – 8pm. Our rates remain the same all through the week. Closed Saturdays until May.

07428 086680

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