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There are number of reasons why a UPVC Door or Window lock will need repairing if it is broken or damaged.
There are commonly two problems
This problem is usually indicative of one of two things, but can be a combination of both, the two main mechanical parts to a upvc/composite door are the euro profile cylinder lock and the multi point locking mechanism.
1. KEY DOES NOT GO ALL THE WAY IN OR WILL NOT TURN
If the key does not go into the lock cylinder (sometimes called euro lock) all the way in, or the key will go in and not turn usually this is a euro cylinder failure. So this part needs to be replaced once the door has been opened.
Either, a cheap lock has been fitted, the key has been left on the inside and lock operated from other side and the lock is now out of sync, or general wear and tear.
2. KEY GOES IN AND TURNS
If the key goes into the euro lock and turns anti clockwise (unlock) one complete turn and the door won’t open this is usually a sign that the multi point lock has failed or a security bolt or hook has jammed.
Door and frame not fitting correctly or are out of alignment and the handles have been forced
UPVC DOOR WILL NOT CLOSE CORRECTLY
This is commonly caused by either the strike receiver for latch part of lock not being adjusted correctly or having worked loose and now not being set correctly, or the door trim rubber has moved and is not sitting properly on the door. stopping the door from shutting correctly.
Door or Window Lock is Damaged or Broken
1. UPVC DOOR/WINDOW LOCK PROBLEM WHEN LIFTING ( FLOPPY HANDLE )
Upvc door/window lock is very notchy when lifting the upvc door or window handle is usually due to a worn or faulty locking mechanism.
2. KEY GOES IN BUT HAVE TO JIGGLE UP AND DOWN
When a key goes into euro profile cylinder but you have to jiggle or pull key up or down is usually a sign of badly cut keys or a faulty or worn euro cylinder lock.
3. DOOR HOOK OR BOLT WONT RETRACT IN OR OUT
One of the multi point hooks or bolts won’t retract in or out properly when the window handle or upvc door handle is operated is usually a sign of a broken mechanism or locking security device
Door or Window will not Lock
1. Window or door strikes are not in the correct position to allow the mechanism to reach the fully locked correct position or handle to reach maximum lift position to allow the key to turn on upvc/composite doors.
2. Hinges may require adjusting to allow correct fitting of door and frame or window and frame.