It is usually easier to clean a fly screen frame if you can first remove it from the window. Some fly screens are designed to easily detach. A few other screens can be removed with the use of a screwdriver or spanner. Occasionally some fly screen frames are permanently attached to the window or are at least very difficult to remove.
- Be careful removing the screen. Older style mesh is easily damaged.
- Find an open workspace for cleaning the screens, somewhere that will tolerate water. Outdoors is ideal. Put down some plastic sheeting or a tarpaulin to prevent damage to the screens
- Spray the screens with a hose, but do not use too much water pressure. Make sure to spray both sides.
- Make a mixture of one part ammonia to three parts water. Or, make some warm water with soap/detergent. Wear rubber gloves to protect your hands. Some people like to wear goggles to protect their eyes.
- Use a soft bristle brush and ammonia solution to wash the screen. Leave the screen flat on the tarpaulin sheet, and scrub with a circular motion.
- After loosening any dirt and debris with the scrubbing you can wipe the surface with a sponge.
- Rinse the screen with a hose, and then shake off the loose water.
- Allow the screen to air dry. Prop it up so that the air can circulate around the mesh.
- Once dry, put the screen back on the window.
Vacuum the screen mesh once a week to prevent dust from building up. A soft bristle attachment for a vacuum is a good option. Else, use a small handheld vacuum cleaner (i.e.: A Dustbuster)
Retractable mesh screens require less cleaning as they can be stored away when not in use.