Fitting A Front Door Lock

For front doors it is best to fit two locks a mortice deadlock about halfway up and a night latch one third of the way down the door.
Fitting a front door lock. If you don t get this precise the lock may not fit properly. Take care with the marking out and drilling to ensure excellent results. When possible fit two locks on your front door both to bs3621 standard. The difference between a rim lock and a mortice lock is that a rim lock is fitted on the surface of the door whilst a mortice lock is fitted in the door edge.
Where the door is self closing the latch has an angled or rounded edge and is sprung so that it automatically locks when the door is closed. As a rule the more levers pins or discs that a lock has the harder it will be to pick. To install this lock see section 4 below. Interior doors are usually fitted with a mortise lock with a latch operated by the door handle or knob.
The key to success is getting the hole for the cylinder in the right position. Fitting a front door rim lock fitting a rim lock the yale type lock on your front door is fairly straight forward. However if you only fit one lock make it an automatically dead locking night latch.