You won’t attract anyone if you don’t care how your building looks.
If you’re afraid of heights, have poor balance or don’t have the human resources necessary for the task, you are probably looking for an alternative.
In other times people avoid cleaning them due to the lack of time or procrastination.
It’s not just the simple improvement in appearance that was mentioned before.
Both timber and glass are in much better shape when you consistently remove the dirt.
You can’t also forget that clean windows give more light to the room.