Over time, window screens get dirty just like any other surface. While soil may be more difficult to see on a screen than on a solid surface, screens still accumulate dust, pollen, webs and pollutants over time.

 

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Screen cleaning is much easier and more effective when screens are removed from the windows. Try to do this from the inside if possible, particularly above the first floor. If you can’t, please see the entry Ladder safety for tips on using a stepladder or extension ladder properly.

Line a flat, horizontal surface outdoors with old towels, a folded drop cloth or carpet remnant to support and protect screens during cleaning. Clean only one screen at a time to prevent damage. Mix one ounce of dishwashing liquid per gallon of water, wet each screen with a garden hose, and then scrub the screen with a nylon brush and soapy water. Stand the screen up and rinse completely.

Shake excess rinse water out of the screen, or gently slap the water out of the surface with your hand. With some types of frames, you may need to prop the screen on one corner for a couple of minutes to make sure excess water has drained away from the frame’s channels and edges.

It’s OK to re-install the screens if they’re still a bit damp. After all, they get wet every time it rains!