How to Remove Black Mold On Windows

Are you dealing with pesky black mold on your windows and not sure how to tackle it? Don’t worry; we’ve got you covered! Today, we’re sharing a simple and effective guide to help you banish black mold from your windows for good. Say goodbye to unsightly spots and hello to clean, mold-free windows in just six easy steps. Let’s dive in!

Inside this blog:

Keep reading to learn how you can keep your windows mold-free!

Step 1: Gather Your Supplies

Before you get started, make sure you have all the necessary supplies on hand. Here’s what you’ll need for the mold removal process:

  • White vinegar or hydrogen peroxide: These natural cleaning agents are effective at killing and removing mold spores from surfaces.
  • Water: Water is used to dilute the cleaning solution and rinse off the mold and cleaning residue from the windows.
  • Spray bottle: The spray bottle is used to apply the cleaning solution onto the mold-infested areas of the windows evenly.
  • Scrub brush or sponge: A scrub brush or sponge is used to gently scrub away the mold from the windows’ surfaces, ensuring thorough cleaning.
  • Microfiber cloth or paper towels: These are used to dry the windows after rinsing to prevent moisture buildup, which can contribute to mold growth.
  • Gloves and protective eyewear (optional): While not required, gloves and protective eyewear or a face mask can provide added protection against direct contact with mold spores and cleaning solutions, especially for those with sensitivities or mold allergies.

Step 2: Prepare the Cleaning Solution

Mix equal parts white vinegar or hydrogen peroxide with water in a spray bottle. Both white vinegar and hydrogen peroxide are effective natural cleaners that can help kill and remove mold spores from your windows.

Remember, the acidic properties of white vinegar and the oxidizing properties of hydrogen peroxide work together to break down and eliminate mold growth effectively.

Step 3: Spray the Affected Areas

Spray the cleaning solution directly onto the black mold spots on your windows. Be sure to cover the affected areas thoroughly, allowing the solution to penetrate and loosen the mold.

Pay close attention to any hidden or hard-to-reach areas where mold may be lurking, ensuring thorough coverage for effective mold removal. It’s also helpful to let the solution sit for a few minutes before proceeding to the next step, allowing it to work its magic and break down the mold for easier removal.

Step 4: Scrub Away the Mold

Using a scrub brush or sponge, gently scrub the mold-infested areas of your windows. Apply light pressure to avoid damaging the glass or window frames, but be thorough in your scrubbing to ensure you remove all traces of mold. Remember to work in small sections and use circular motions to lift and dislodge stubborn mold spots effectively.

For particularly stubborn mold or heavily affected areas, you may need to repeat the scrubbing process multiple times until the mold is completely removed.

Step 5: Rinse and Dry

Once you’ve scrubbed away the mold, rinse the windows thoroughly with clean water to remove any remaining cleaning solution and mold residue. Use a microfiber cloth or paper towels to dry the windows completely. Proper rinsing and drying are essential to prevent any leftover cleaning residue from attracting moisture and promoting mold regrowth.

Step 6: Prevent Future Mold Growth

To prevent black mold from returning to your windows, it’s essential to address the underlying causes of mold growth. Keep your windows clean and dry, especially in areas prone to moisture buildup, such as bathrooms and kitchens. Use exhaust fans or open windows to improve ventilation and reduce humidity levels indoors.

Additionally, consider installing a dehumidifier to maintain optimal indoor humidity levels and inhibit mold growth in your home. Regular maintenance and vigilance are key to keeping mold at bay and ensuring a clean and healthy living environment for you and your family.

Additional Tips for Mold Removal


Below are a few bonus tips for effective black mold removal on windows. Whether you’re dealing with mold on your window sills or window frame; and have wooden window frames, modern window systems, glass panes, or leaking window frames, these window mold tips will help you out.

Use Protective Gear

While cleaning mold on wooden windows (or whatever material of windows you have), it’s a good idea to wear gloves and protective eyewear to avoid direct contact with mold spores and cleaning solutions. Additionally, consider wearing a mask to prevent inhaling mold spores, especially if you’re working in a poorly ventilated area or dealing with extensive mold growth.

Ventilate the Area

To prevent mold on window sills, open windows and doors to allow fresh air to circulate while cleaning mold-infested areas. This helps prevent the spread of mold spores and speeds up the drying process. Using fans or dehumidifiers can also help improve air circulation and reduce moisture levels, further inhibiting mold growth.

Address Water Leaks

Check for and repair any water leaks or damage around your windows, as moisture is the primary culprit behind mold growth. Fixing leaks will help prevent mold from returning in the future, as it won’t allow your windows to retain moisture. Be sure to inspect the areas around your windows regularly for signs of water damage, such as discoloration, peeling paint, or soft spots, and address any issues promptly to prevent mold from taking hold.

Cheers to a Brighter, Mold-Free Future!

By following these six simple steps and incorporating these additional tips, you can effectively remove black mold from your windows and prevent it from coming back. Remember, addressing mold promptly not only improves the appearance of your home but also helps prevent potential health risks associated with mold exposure and boosts your home’s air quality.

So, take charge of your home’s cleanliness and well-being by implementing these easy-to-follow strategies. With your newfound knowledge and proactive approach to mold prevention, you can confidently say goodbye to moldy windows and hello to a cleaner, healthier home that you can be proud of. 

Contact our team of expert contractors at Allphase Restoration to get started on your next home improvement project! We’re excited to hear your questions and ideas and help bring your vision to life. For top-notch customer service and dedicated craftsmanship, reach out to our team today.

Read Our Recent Posts