Hi, sorry if this is answered somewhere else but both my neighbour and I have windows that are jamming and need slammed to closed. The window seems to be slightly sagging in the middle and getting stuck. I've attached a picture of where the window is hitting the frame as its hard to explain. I've also attached pictures to show the type of window it is as I'm not sure what it's called.
I am hoping there is a relatively easy for fix for this. Any help is appreciated.