Door Type Commonly Fitted ToĪ 5 lever Mortice deadlock is found on the following door types: Where-as a mortice deadlock does not have a latch to open the lock. The difference between a mortice deadlock and sash lock is that a mortice sashlock has a latch and bolt to open and close the lock. What is the difference between mortice deadlock and sash lock? Also, a 3 lever lock will NOT be BS3621 approved due to the poor security of the lock. The difference between a 3 lever lock and a 5 lever lock is that a 3 lever lock is less secure because it has fewer levers which increases the risk of key duplication. Number of 5 Levers stamped on Faceplate of Lock What is the difference between a 3 lever and 5 lever lock? We recommend any Nightlatch fitted as a 2nd lock is a British Standard Approved Nightlatch. 5 Lever Mortice Deadlock Type of Front Door Lock & Back Door LockĪ 5 lever mortice deadlock is commonly fitted to wooden doors and is locked from both the inside and outside with a key, they are fitted within the material of the door, rather than on the surface.Īny five-lever mortice deadlock that is NOT BS3621 approved will usually have a Nightlatch fitted as additional security.

The first lock we will look at is a five-lever mortice deadlock, which is a lock that seems to confuse a lot of people. To help you identify if you have a deadlatch, mortice deadlock or a multi-point locking system, we will tell you about the following main types of house lock.ĥ Lever Mortice Deadlock | BS3621 5 Lever Mortice Deadlock | Multi Point Locking System | Rim Automatic Deadlatch | Euro Cylinder Lock Find our below about each type of door lock with advantages & disadvantages of each lock type.

When getting house insurance most comparison sites or providers will ask what type of door locks are on your front door & all external doors. You may want to know what door locks you have on your front & back doors, our guide will help you find out what type of door locks you have fitted in your home.

Deadbolt lock mechanism