First section of plywood wall covering fitted. Tomorrow the windows company are coming for a meeting to discuss the issues. Other than the ones I have written about, there is also a problem that neither of the sliding doors are user friendly on the inside as there is no handle and the locking system is very difficult to use. There are also no external handles to open and close the doors and more importantly, no lock on either of the two doors, one of which at least is intended to be the main entrance to the house.