How To Clean Outside Windows You Can't Reach. Even if you spray carefully, it doesn’t totally eradicate or control the issue of wastage. This solution is a gentle biodegradable soap that will not leave a greasy film behind on the window.
Sometimes detaching sliding windows is the easiest way to clean outside windows with screens, but make sure you remove them gently and ask for an extra set of hands if required. Coming to cleaning the outside, spray the solution as much as you can. Cleaning windows you can’t reach using a pressure washer.
In many cases, such a tool will do.
There are a few options for cleaning outside windows you can’t reach. These tools were designed specifically to cover such needs. Spraying directly on the glass always leads to wastage. Sometimes detaching sliding windows is the easiest way to clean outside windows with screens, but make sure you remove them gently and ask for an extra set of hands if required.