Is there anything in geomantic science that the window cover is installed askew?

The window represents the eyes, but the situation you described should have little impact. This is just a problem of building construction mistakes, which has nothing to do with geomantic omen.

If you think it has an impact, then there is a realistic situation to verify and see what direction this position belongs to, and then cooperate with the corresponding family members to see if their eyes are squint. I think this situation is ridiculous. Please don't write it down. Does not affect.