Skip to Content

How to Kill Black Mold on Windowsills

how to kill black mold on windowsills

Have you ever walked into a room and noticed an unpleasant smell? If so, you may have found black mold.

Black mold is very difficult to get rid of because it can grow in places where air circulation is poor. 

This blog post will teach you how to kill black mold on windowsills with three easy steps!

What is black mold?

Black mold is also known as stachybotrys chartarum. It can grow on wood, paper and fabric that has become moist. 

This type of fungus produces tiny spores that spread easily to other parts of the house through humidity or ventilation systems.

How do you know if your windowsills have black mold?

If there are dark spots growing on your windowsills, then there is a good chance you have black mold. 

Another way to check for the presence of this fungus is by smelling it; if it smells musty or earthy that means that it has grown in damp places like windowsills.

Why does black mold appear?

Black mold naturally occurs in the environment where it’s warm and humid. You can find black mold growing on trees, rocks or even organic matter like old leaves.

Most people know that it is important to kill or remove all types of molds from their homes. 

However, there are some homeowners who only take the issue seriously when they see how dangerous these tiny organisms can be for themselves and their family members. 

When left alone too long without proper removal and remediation, black mold can lead to serious health problems.

Black Mold Symptoms

Exposure to this type of indoor air pollutant often results in a wide range of harmful effects that may vary from person to person. 

In general, the most common signs associated with exposure include asthma attacks or worsening respiratory condition, stuffy nose and respiratory difficulties, fatigue and flu-like symptoms.

People who are in the high risk group for black mold exposure include children under five years old, individuals with chronic lung or immune system problems like asthma or cancer patients undergoing chemotherapy treatment.

black mold on basement window.

How to eliminate Black Mold completely?

If you are looking for a way to kill black mold completely, it is important that you find the source of moisture. 

You can do this by checking your windowsill and walls for any leaks or cracks in the foundation before repairing them.

You should also inspect other parts of your home like crawl spaces and attics every once in a while to make sure that they are not creating moisture in your house.

How can I get rid of black mold on my windowsill?

There are three easy steps that you can follow to kill black mold on windowsills!

  • The first step is to clean the area with soap and water.
    • This will eliminate all of the spores so that when you continue onto step two, there won’t be any left in your house.
  • The second step involves using borax mixed with hot water in a spray bottle.
    • Mix the borax and hot water together in a spray bottle and then shake it up so that the powder mixes with the liquid.
    • After this, simply use your spray bottle to coat all of the moldy areas on your windowsill and let them dry for several hours before step three!
  • The final step is using bleach mixed with water.
    • Mix the bleach and water together in a spray bottle, use it to coat all of the moldy areas on your windowsill, allow them to sit for thirty minutes before rinsing with clean water.

Repeat these steps every other day until you no longer see any black spots growing on your windowsills! 

If there is still some black mold growing after following these steps, you might want to consider replacing your window sills.

cleaning a window

How do I prevent this from happening again?

To keep yourself and family safe from future outbreaks it is important that you repair any leaks or cracks in the foundation before they can cause serious damage.

You should also inspect other parts of your home like crawl spaces and attics every once in a while to make sure that they are not creating moisture in your house.

repairing a window

Things to remember about black mold

  • Black mold thrives in dark, damp environments
  • People can fight back against black mold by keeping the humidity level around their home below 50 percent.
  • It’s also important to clean up any standing water with towels before killing off these spores.
  • Black molds emit toxic spores when they are grown near a source of moisture that is dark and damp.
  • Black mold can be prevented by keeping any surfaces dry and using a fungicide on a regular basis.

Conclusion

People can fight back against black mold by keeping the humidity level around their home below 50 percent, which reduces the moisture available for molds to reproduce and thrive. 

Maintain proper ventilation through windows or air conditioning units that exhaust moist air outside of buildings. 

For those who have black mold on window sills, the best way to kill it is by using a commercial fungicide found at most hardware stores and home centers. 

However, this product may damage plastic or painted surfaces so wear rubber gloves when applying the solution.

If you suspect that you have black mold growing inside your property, then it is important to act quickly.

 Although not all types of molds are toxic or unsafe for humans and animals to be around, others can cause allergic reactions in sensitive individuals. 

The best way to deal with the problem is by calling professionals who will carry out an inspection on your property and treat the mold as necessary.

flower near window office building