Dusty, dirty window frames can distract you from enjoying the view in your home. Learn how to clean window sills with these quick tips. Over time, window sills and tracks can accumulate dirt, dust, and even mold, which can pose health risks and reduce the lifespan of your windows.
In this blog post, I’m going to walk you through step-by-step how to clean window sills and tracks the right way to keep them looking fresh.
Say goodbye to dirty window sills and hello to a fresher, brighter home!
Do you ever notice the dirt on your window sills after a long winter. There is nothing more annoying than opening up the windows on a fresh spring day only to see dirt and grime that has collected over the past 6 months.
I know that cleaning a window sill isn’t high on your cleaning routine, but it’s important to keep them clean and free of mold. Not to mention how embarassed you would be if your mother in law saw your dirty window sill! it really dosn’t that that much to get your window sill clean!
Key Takeaways for How To Clean Window Sills
Here are 4 simple steps to clean the window sills:
- Dry dust your window sill to remove any loose debris.
- Apply your diy cleaning solution to the window sill and let it sot for a few minutes.
- Use a microfiber cloth to wipe the window sill clean.
- An old toothbrush, a damp microfiber cloth and a vacuum with an attached brush are essential tools to clean your window sill.

Step-by-Step Guide to Cleaning Window Sills
Follow this step-by-step guide to cleaning window sills, and you’ll have them looking pristine in no time.
Dry Dusting
Before applying any cleaning solution, you should first dry dust the window sills. This helps remove loose dirt, dust, any dead bugs and debris that can hinder the cleaning process. Use a dry microfiber cloth or paper towel to gently wipe the window sills, being careful not to apply too much pressure to avoid scratches.
This simple step will make the rest of the cleaning process much smoother.
Applying Cleaning Solution
Next, apply your chosen cleaning solution to the window sills. If you’re using a vinegar and water mixture, spray the solution onto the sills and let it sit for a few minutes to break down the dirt and grime.
For a baking soda paste, apply the paste directly to the sills and tracks, making sure to cover any stubborn stains. Remember, the cleaning solution you choose will depend on the type of window sill material and the severity of the dirt and grime.
Wiping Clean
After allowing the cleaning solution to work its magic, it’s time to wipe the window sills clean. Use a damp microfiber cloth or a cleaning toothbrush to scrub the window sills, applying gentle pressure to avoid damaging the surface. Be sure to reach all the crevices and corners, as dirt and grime can often hide in these hard-to-reach spots.
Once you’ve thoroughly scrubbed the window sills, use a clean, dry cloth to wipe away any remaining residue and moisture.
That’s all you need to know when it comes to knowing how to clean window sills.

Simple Techniques for Cleaning Window Tracks
In addition to cleaning your dirty window sills, it’s important to pay attention to the window tracks as well as the window sill track. Dirty window tracks can not only affect the overall appearance of your windows, but can also imess with their functionality.
It’s a good idea to clean your windows BEFORE you tackle the tracks. Otherwise, you could be stuck with washing the tracks twice after washing the windows. Clean window tracks will make all the difference in how easily your windows open and close.
This section will cover three effective techniques for cleaning window tracks: toothbrush scrubbing, damp cloth wiping, and vacuuming.
Toothbrush Scrubbing
Toothbruses are super handy to clean those hard to reach areas such as your window tracks, but they also work really well with cleaning your shower. So the next time, you go to throw an old toothbrush away – don’t! Put it in your cleaning supply cupboard instead!
Toothbrush scrubbing is an excellent technique for cleaning window tracks, as the small bristles can easily access hard-to-reach areas and remove dirt and grime. Simply apply your chosen cleaning solution to the tracks and use a toothbrush to scrub away the dirt.
Be sure to clean all corners and crevices, as dirt and grime can often hide in these spots

Damp Cloth Wiping
Another effective technique for cleaning window tracks is damp cloth wiping. After applying your cleaning solution and scrubbing the tracks with a toothbrush, use a damp cloth to wipe away any remaining dirt, grime, and cleaning solution residue.
This will help to make sure that your clean window tracks are free from any lingering dirt.
Vacuuming
Vacuuming is a helpful method for removing loose dirt and debris from window tracks before cleaning with other methods. Use the crevice cleaning tool and brush attachment on your vacuum cleaner and vacuum the window tracks, making sure to reach all corners and crevices.
This will make the subsequent cleaning process more efficient and effective.
Lubricate the tracks (Optional)
This is super optional, but it does help keep the windows opening smoothly. For vinyl tracks, you can use a silicone lubricant, but only a small amount!
For wooden tracks, you can use wax.
This can make your windows glide open and closed as if they are new.

Essential Tools to Clean Window Sills
Before you start the cleaning process, make sure to have the right window sill cleaning tools at your disposal for a thorough and efficient job. The essential tools for effective window sill cleaning include microfiber cloths, old toothbrushes, and vacuum attachments. These tools will help you reach every nook and cranny, leaving your window sills and tracks spotless.
Microfiber cloths
Microfiber cloths are a game-changer when it comes to cleaning window sills, and they work well to clean baseboards too. These soft, lint-free cloths are designed to trap dirt and dust without scratching surfaces, making them perfect for cleaning delicate window sills.
Additionally, microfiber cloths are cost-efficient and eco-friendly, as they can be reused multiple times before requiring replacement. Say goodbye to disposable cleaning wipes and hello to a cleaner, greener home!
Old toothbrushes
Don’t throw away your old toothbrush just yet!
Old toothbrushes are excellent for cleaning window sills and tracks, as their small bristles can easily access small crevices and hard-to-reach areas.
An old toothbrush will allow you to scrub away dirt and grime from the tight spots in your window sills effectively, restoring their new-like appearance.
For the really tough hard to reach areas that even an old toothbrush can’t get into, a q tip works really well.
Vacuum attachments
Vacuum attachments, such as crevice tools and dusting brushes, are invaluable for window sill cleaning. They can be easily attached to your vacuum cleaner to help remove loose dirt and loose debris from window sills and tracks before cleaning with other methods.
Utilizing vacuum attachments not only saves time and effort, but also minimizes the amount of cleaning solution needed, thus streamlining your window sill cleaning process.
You will also need these:
- Rubber Gloves
- Water
- Dish soap (This one is the best)
- Paper Towels
- Butter Knife
- Q-Tips

Homemade Cleaning Solutions for Window Sills and Tracks
Now that you have the essential tools ready, it’s time to prepare the cleaning solutions. While there are various commercial cleaning products available, homemade cleaning solutions can be just as effective and are often more environmentally friendly.
This section will introduce you to three popular homemade cleaning solutions for window sills and tracks, namely, vinegar and water mixtures, baking soda paste, and bleach solutions. The best thing about these homemade cleaning solutions is that they are made with household items you will absolutely have at home.
Here is what you will need for these diy solutions to clean a window sill:
- Spray bottle
- Distilled white vinegar
- Baking soda
- Bleach
Vinegar and Water Mixture
A vinegar and water mixture is an eco-friendly and effective cleaning solution for window sills and tracks. White vinegar is a natural antifungal agent and a multipurpose cleaner, making it perfect for tackling dirt and grime on your window sills.
To create this homemade cleaner, simply mix equal parts white vinegar and water in a spray bottle. and spray it on the affected area You’ll be amazed at how well it tackles dirt and grime, leaving your window sills sparkling clean.
Dish liquid and water
A toothbrush dipped in dish liquid and warm water works really well to clean a window sill. Rinse with warm water and either let it drain out the weep holes or dry it with a paper towel or a clean rag
Baking Soda Paste
For those stubborn stains and grime on your window sills and tracks, a baking soda paste can work wonders. Baking soda is a gentle abrasive that can help dissolve caked-on dirt without the need for excessive effort or using dish soap. Just apply a little elbow grease, and you’ll see the difference.
To make the paste, follow these steps:
- Mix baking soda with a small amount of water to form a thick consistency.
- Apply the paste directly to the window sills and tracks.
- Scrub with a brush or cloth.
- Wipe away with a damp cloth.
Bleach Solution
If mold and mildew are your main concerns, a bleach solution can be highly effective to remove mold and mold spores, from your window sills and tracks. Bleach is a powerful disinfectant that can kill and clean mold and mildew spores, preventing their regrowth.
To create a bleach solution, mix 3/4 cup of chlorine bleach with 1 gallon of water. Remember to always wear protective rubber gloves when handling bleach, as it can cause skin irritation.

Preventing Mold and Mildew on Window Sills
While cleaning your window sills and tracks is essential, it’s equally important to prevent the growth of mold and mildew.
Mold and mildew thrive in damp, humid conditions and can cause damage to your window sills, as well as pose health risks.
In this next section, I’m going to coverhow proper ventilation and sunlight exposure will help to prevent mold and mildew growth on your window sills.
Proper Ventilation
Ensuring proper ventilation in your home is crucial in preventing mold and mildew growth on window sills. Good ventilation helps reduce moisture buildup, which can lead to mold and mildew growth.
By increasing ventilation, you’ll promote air circulation and lower humidity levels, thus inhibiting the growth of mold and mildew on your window sills.
Sunlight Exposure
Sunlight exposure is another essential factor in preventing mold and mildew growth on window sills. Sunlight helps dry out moisture on window sills, reducing the likelihood of mold and mildew growth.
Make sure to open your curtains or blinds during the day to allow sunlight to reach your window sills.
Not only will this help prevent mold and mildew growth, but it will also brighten your home and create a more cheerful atmosphere.

How to Clean Window Sills Summary
In conclusion, maintaining clean window sills and tracks is essential for the overall appearance and health of your home. By following this step-by-step guide, gathering the essential tools, and using homemade cleaning solutions, you can easily clean your window sills and tracks and maintain them to help prevent mold and mildew growth.
Remember that proper ventilation and sunlight exposure are crucial in preventing mold and mildew growth on your window sills.
With a little effort and the right techniques, you can keep your window sills and tracks clean and pristine, enhancing the beauty of your home and creating a healthier living environment for you and your family.
How Often Should You Clean Window Sills
How often you should clean your window sills, entirely depends on your climate.
If you are continually opening windows because the weather is so nice (lucky you!), then you’ll want to wash the tracks more often, maybe once every couple of months.
If you live in a slightly cooler climate and the windows don’t get opened for 6 months out of the year, then once a quarter should suffice.

FAQ
How do baking soda and vinegar clean window sills?
In a spray bottle, combine equal parts of water and white vinegar. Spritz liberally into the window tracks, making sure the baking soda is evenly soaked. The powder will bubble and fizz due to a chemical interaction between the baking soda and vinegar. Allow yourself 5 to 10 minutes of resting time.
How do you clean dirty caulk around windows?
To clean caulking, combine bleach with water or baking soda. If the caulking is really unclean, the moderately abrasive baking soda will aid in the removal of stains. To use bleach on its own, make a solution needing 1/4 cup bleach per gallon of water.
What is the black stuff on your windowsill?
When the wind blows, mold spores can be deposited on your windows, sills, and casings. If you don’t thoroughly clean the regions around the pots, having potted plants along the window sill might also promote black mold development.
How do you clean window sills fast?
Clean window sills fast by wiping them down with a dry microfiber cloth, and then spritzing with a solution of water and dishwashing liquid.
Use a soft scouring pad and baking soda for stains, or a toothbrush dipped in soapy water to clean window tracks.
Finally, use your fingertips for any stubborn smudges.
What do you clean outside window sills with?
To clean outside window sills, sprinkle baking soda on the sill and add some vinegar. Use an old toothbrush to scrub the grime, then rinse with water and dry with a towel.
How do you clean outside windows you can’t reach?
To clean high outside windows, you can use an extendable window squeegee that can be extended to several meters to clean the windows from ground level without the need for a ladder.
This is a great way to clean windows without having to climb a ladder, which can be dangerous. It also allows you to clean windows that are out of reach, such as those on the second or third floor of a building.
How to clean window tracks?
Clean window tracks by vacuuming dirt away and then scrubbing with a bristle brush.
To finish, make a solution of equal parts warm water and white vinegar in a spray bottle, and generously cover the tracks for a thorough clean. Finally, wipe off excess dirt with a cloth.
How to clean window seal?
Gently wipe windowsills and frames with a damp cloth and a few drops of dishwashing liquid to remove dust and stubborn smudges.
Use your fingertips for extra pressure on smudges.
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Grainne Foley
Grainne Foley is a wife and mother of 2 great kids. During her 5 years of full time RV travel, Grainne learned to become very efficient at household chores, in order to make time for family adventures. Now, back in a house, she has continued to create tools and techniques to help others lighten the load of household organization and cleaning.