All of my upvc windows have dropped.
They are all top hung.
On investigation, the screws holding the hinges on the opening sash were loose, I tried tightening but the screws only go into plastic, I can't see or feel any reinforcing inside and there is nothing on the outside, just upvc, so a 1m x 1m window is being held by 3 screws either side only into upvc, is this normal ? And how can I solve it ?
