Securing your home should not be complicated. Read Yale's buying guides for different products to see what you need to know before you buy.
First of all decide whether the whole lock or a part of the lock needs to be replaced. There are several reasons why a lock or lock part might be in need of replacement. The most common reason is that your current one is broken; another important reason is to increase the security of your home.
Cylinders
A euro cylinder forms an integral part of many types of locks including multi-point locks used on PVCu doors and some mortice locks used on timber doors. Euro cylinders can be easily replaced and changing the cylinder is an easy way to 'change the locks'. Before you buy, you need to ensure you know what type, size and security of cylinder you require.
Guide to buying cylinders
Mortice locks
A mortice lock is 'morticed' into the door. If you are replacing a mortice lock, it is important that you know the size of the your existing lock to ensure that your new lock will fit into the same hole. Mortice locks are available in sashlock or deadlock variants, so it is important that you know which one you require.
Guide to buying mortice locks
Nightlatches
A nightlatch is mounted on to the door instead of being morticed into it. The size of nightlatch you require is often dependent on whether or not you are fitting it to a panelled door.
Guide to buying nightlatches