What is the best way to clean window screens?

Hosing down the screens is one way to clean the screens. ​Here in Arizona, water is hard and has a lot of calcium which can dry out the screen mesh and over time will become brittle and fall apart. We do not recommend using power washers for the same reason. Using a brush to agitate the screen is a good way to remove dirt and won't damage the screen. If your screen does become dry starts to fade a little, Screen Magic is a good solution to lightly mist on the screen mesh and wipe evenly with a microfiber towel can put moisture back into the screen and make your screen look new again.