We recently had all our windows replaced with sealed unit PVC. We were pleased with the work but now I am concerned about how the units that didn't have an opening were fitted. Where there is an opening I can see that the frame is screwed into the wall but if there is no opening how should the window be fitted? I would have thought the frame be screwed in and afterwards the sealed unit fitted. I didn't watch them fit the windows so I don't know if they did this or not.
Thanks - Steve
Thanks - Steve

