Learn How to Upgrade a Cylinder Lock.

Learn how to get the right security for your doors & rooms with our expert guide to buying a cylinder lock. Measure, choose, and order a new cylinder lock with ease, with advice from our team of security experts.

How to Buy

There are three key areas to consider. Which shape, which size and how secure?

Which shape?

Cylinders are either Euro or Oval in shape. Have a look at your lock to see which shape you need, and take a look at the differences between the two here.

Which size?

One size doesn't fit all! Check out our measuring guide to make sure you get the right one.

Which features?

Are you fitting the cylinder to an exit door, such as your front door? Or to an internal door? They both have different security features. Check them out here.