My window was stiff to open but finally I managed it. However, the lever mechanism operating the window appears to be faulty and it was very difficult to close the window again. Would a builder be able to sort this out for me or do I need to contact a window specialist?
It may be that the window fastener is faulty, However the mechanism that the window fastener operates may also need checking over just to check to see if this is also faulty,
I hope this helps
Malcolm--LockDoctor Locks & Joinery