It is no secret that rain can cause our windows to look streaky and dirty. However, it is important to understand that it is not the only factor responsible for this problem.
The substrate around your windows may also be the culprit, Applicator magazine explained. It is filled with minerals and salts that will leach onto the window glass when it gets wet, according to the magazine.
What is it about the rain that makes our windows look dirty?
To get rid of the salts and minerals causing your windows to look streaky, use a solution of soap in water to sponge the window in a reverse-S pattern (left-handers start at the top left). Once you have scrubbed each pane, wipe it clean with a squeegee and dry it with a rag.

If your windows are multipane, use a handheld sponge or hog-bristle brush. This tool will help loosen and remove dirt from the corners of your dandowneywindowcleaning: Cleaning Services, which can be difficult with a squeegee alone.
Cleaning your windows is a very time-consuming task. But, if you take the time to do it regularly, your windows will look better than ever.
Make sure that you are working in a very quick manner and moving from one side of the window to the other to avoid streaks. If you are using a squeegee, it is best to work horizontally to avoid streaks on the sides of the window.