Window screens filter airborne dust, pollen, and debris — in Toronto, pollen season in spring and summer combined with urban particulates mean screens accumulate visible grime quickly. Dirty screens restrict airflow and push grime inside when windows are opened. Cleaning once or twice a year keeps them functional.
Light Clean (Vacuum Method)
For screens that are dusty but not visibly grimy, cleaning in place is simplest:
- Attach the brush attachment to your vacuum
- Vacuum both sides of the screen with gentle pressure — avoid pressing hard, which can warp the mesh
- Use a soft brush to dislodge any stuck debris around the frame edges
Deep Clean (Seasonal)
- Remove the screens from the windows — most slide up and tilt inward, or have tab releases at the top corners
- Lay on a flat surface outdoors or in the bathtub
- Mix warm water with a few drops of dish soap in a bucket
- Use a soft brush (a scrub brush or large paintbrush) to scrub both sides of the screen, working in a circular motion
- Rinse thoroughly — a garden hose is ideal; in the tub, use the shower head on low pressure
- Stand the screens vertically against a wall or fence to drip dry — lay flat or lean them in a sunny spot
- Allow to dry completely before reinstalling — wet screens trap more dust and can cause frame corrosion over time
Repairing Small Holes
Small holes in window screens can be temporarily patched with clear nail polish — apply a few coats over the hole and surrounding mesh to seal it. Replacement screen mesh and spline are inexpensive at hardware stores for more permanent repairs.
Tips
- Clean screens in spring before pollen season and in fall before closing windows for the season
- Label each screen with a small piece of tape before removing so they go back to the correct window
- Inspect frames for bent or damaged corners while screens are out — small bends can be gently bent back with pliers