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A guide on how to change a euro cylinder

Written by :

Ollie

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A Guide on How to Change a Euro Cylinder


The euro cylinder is the most common type of lock found on doors throughout Europe. It’s a vital part of your home’s security system, protecting your family and your possessions from intruders. Over time, however, the cylinder can become worn, and it may be time for a replacement. If you’re not sure where to start, don’t worry – we’ve put together a comprehensive guide on how to change a euro cylinder. Whether you’re a homeowner or a security professional, this guide will give you all the information you need.



Step 1: Measure the cylinder

The first step in changing a euro cylinder is to measure the old cylinder. This is important because euro cylinders come in different sizes, and you need to make sure you get the right replacement. To do this, remove the cylinder from the door and measure it from the centre of the fixing screw hole to both ends. Make a note of the dimensions and take them with you when you go to buy the replacement cylinder.

Step 2: Choose the right replacement cylinder

Once you have the measurements, it’s time to choose the right replacement cylinder. Euro cylinders come in a variety of sizes and security levels. You need to choose a replacement that matches the original cylinder’s size and security level, or you may compromise your home’s security. You can ask the store for advice on which cylinder to choose based on your measurements and requirements.

Step 3: Remove the old cylinder

Before you can install the new cylinder, you need to remove the old one. To do this, you’ll need to remove the fixing screw from the side of the door where the cylinder is located. Once the screw is removed, you can push the cylinder out of the door from the other side.

Step 4: Insert the new cylinder

With the old cylinder removed, it’s time to insert the new one. To do this, you need to insert the cylinder from the outside of the door, and then attach the fixing screw through the inside. Make sure the cylinder is flush with the door, and that the screw is tight enough to hold it in place. Test the lock by inserting the key and turning it to make sure it works correctly.

Step 5: Check the lock’s alignment

Finally, you need to check the alignment of the lock. When you close the door, the lock should click into place and the key should turn smoothly. If the lock is misaligned, it may need adjusting. This is a relatively simple process but may require some trial and error.


Changing a euro cylinder may seem like a complicated process, but it’s relatively easy with the right tools and knowledge. By measuring the old cylinder, choosing the right replacement, removing the old cylinder, inserting the new one, and checking the lock’s alignment, you can ensure your home remains secure. Keep in mind that if you’re not confident in your DIY skills, it’s always better to seek professional help. After all, your family’s safety is priceless.

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