What does a house cleaner clean? What is the job role include? For the day for $100?

You need to do what has been agreed upon. If this is what you and your employer agreed they want done, then you are doing the right amount of work. As long as they are happy with your work and you are happy with your pay then all is well. I would think you should be washing flooring too. Windows are usually extra in my area, as is laundry, but that is up to you.