How to Clean Window Tracks and Sills
Clear dust, dead insects and grime from window tracks and sills with a vacuum, toothbrush and soapy water. Tight corners need only a wrapped butter knife.
Quick answer
Vacuum the tracks and sills with a crevice tool. Scrub with warm soapy water and an old toothbrush. Use a butter knife wrapped in a cloth to push dirt out of tight corners. Wipe everything dry with a microfibre cloth.
Window tracks and sills collect dust, pollen and dead insects. A quick clean improves airflow and stops grime from baking onto the surface.
What you’ll need
- vacuum with crevice tool
- old toothbrush
- warm soapy water
- microfibre cloths
- butter knife wrapped in cloth
- bicarbonate of soda
Step by step
- 1
Vacuum loose debris
Open the window fully. Run a vacuum crevice tool along the tracks and sill to lift dust, cobwebs and loose dirt. Pay attention to the corners where debris gathers.
- 2
Sprinkle on stubborn grime
For sticky or greasy spots, sprinkle a small amount of bicarbonate of soda directly onto the area. Let it sit for two minutes to loosen the dirt.
- 3
Scrub with soapy water
Dip an old toothbrush in warm soapy water and scrub the tracks and sill. Work the bristles into the grooves and along the edges. Add more soapy water as needed.
- 4
Clean tight corners
Wrap a thin cloth around the tip of a butter knife. Slide it into tight corners and narrow gaps to push out compacted dirt. Rinse the cloth and repeat.
- 5
Wipe dry
Run a clean, dry microfibre cloth along the tracks and sill to remove any remaining moisture and residue. Leave the window open for a few minutes to air dry.
Cover the blade of the butter knife with a thick cloth before inserting it into tracks. A bare blade can scratch paint, plastic or wood.
Common mistakes
- Using too much water that seeps into the wall or frame
- Forgetting to vacuum first and turning loose dirt into mud
- Using a bare metal tool that scratches the surface
- Neglecting to dry the tracks, which can lead to mould
Frequently asked
How often should I clean window tracks?
Every three months, or more often if you live near a busy road or leave windows open frequently.
Can I use vinegar instead of soap?
Yes. Mix equal parts white vinegar and warm water. It cuts through grease and leaves glass streak-free if you wipe the sill afterwards.
Questions about this guide
No questions yet — be the first to ask one and we’ll help you out.
Comments
No comments yet. Start the conversation.
Did this guide help?
Did you try this?
Help others by sharing how it went.
Show your result
Tried this guide? Share a photo of how it turned out.