How to clean badly smeared windows?

When we encounter badly smeared windows at GoldenHome Window Cleaning, we start by rinsing or wiping off loose dust so we're not grinding grit into the glass. Then we make a fresh cleaning solution with water and a small squirt of Dawn or similar dish soap. We use a soft scrubber or cloth to wash the entire pane, working from top to bottom and paying extra attention to greasy or cloudy areas. Next, we use a squeegee to remove the dirty water in overlapping strokes, wiping the rubber blade with a clean towel after each pass. Finally, we dry the edges and sills with a lint-free cloth. If smears remain, we repeat with fresh solution rather than reusing dirty water. This method works well for even the toughest smeared windows we see in Topeka.