I fit these for a living lol....
Yeas they are bonded and unless you know what you are doing and have the correct tools, and most importantly, the glue you ain't getting that screen out or a new one in
But if your fully comp and have windscreen cover (which you do) the excess is gonna be either £50 or £60 - it is not the same excess as your CAR excess mate - neither does it count towards your NCB if you claim for one....
What ins co you with?