Merge Archimesh Rail Window to Wall I created my holes using the subdivision tool, then I added the Archimesh window and fit it into the hole. 

How can I join the window to my wall? I want the windows to move with the whole building when I am moving it around the screen. I have already fitted the windows neatly in the holes I created using Subdivision.
A quick way of doing this is to parent the windows' empties to the building by first selecting the empties, then the building, then hitting Ctrl+P.