When is it worth changing the lock cylinder?

It is worth changing it whenever you are not sure who might have a key to your home, and also when the cylinder no longer works properly or does not protect enough.

The most common cases:

Changing a cylinder does not mean changing the lock, so it is a simple upgrade. It is explained in cylinder replacement.

Related terms

Other questions on this topic

What is the difference between a lock cylinder and a lock?

The cylinder is the part the key goes into; the lock is the mechanism inside the door that moves the bolts. Often changing the cylinder is enough. Read the full answer

How do I know what size cylinder my door has?

It is measured from the centre of the fixing screw, on the edge of the door, to each end. If both sides are equal it is symmetrical; if not, it is offset. Read the full answer

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