This is a common occurrence and doesn’t always necessarily mean that any of the locking mechanisms in the door are broken/ faulting.
A quick test to determine if it is a mechanical fault would be to open the said door, whilst open lift the handle and then turn the key as if the door was closed and you were locking it.
If this process is smooth than it is likely to be a door alignment issue which is for more cost effective but requires the expertise of a locksmith. Please contact one of locksmiths here.
Our advice is to leave the broken key within the lock and do not attempt to force the key out – this could cause unnecessary damage to the lock and make the situation far worse.
Contact SheffLOCK immediately as we specialise in broken key removal.
This is more than likely a realignment issue where the door has dropped or sagged upon opening due to lack of usage – it is rarely due to a mechanical fault.
SheffLOCK can attend and quickly ensure your door is back to good working order – contact us now via 0114 4426200.