Why does exterior glass often look hazy even after a rainstorm? The answer usually lies in the combination of environmental buildup and improper cleaning methods. Pressure washing and window cleaning are two distinct processes that address different surfaces, yet they are often discussed together because both affect how a property looks from the outside.
Pressure washing uses high-velocity water to remove dirt, mildew, and grime from siding, driveways, and decks. The key is matching the pressure level to the material — too much force can etch wood or strip paint, while too little leaves organic growth behind. Window cleaning, by contrast, relies on squeegees, purified water, or mild solutions to lift dust and water spots without scratching glass or damaging frames. For homeowners comparing approaches, this site outlines how the two services complement each other.
One practical point: always clean windows after pressure washing nearby surfaces, since runoff can splatter glass. Another is to test any cleaning solution on a small, hidden area first. Finally, schedule exterior cleaning during mild weather to avoid rapid evaporation that leaves streaks.