UPVC doors are subject to wear and misalignment, which can lead to the lock becoming very difficult to operate & eventually to the lock failing.
Following a lock failure, You may become locked out or locked in your home.
If your PVCU or Composite door is becoming temperamental, please give us a call for advise, because in most instances our locksmith can make adjustments to the door position & the lock keeps that will help achieve as smooth a function as possible, before it becomes a major issue.