Mold needs to be dealt with quickly once you have noticed it on your windows and window sills or casings. Once mold has taken hold in your home it can quickly transfer to hard to clean spots where it can multiply quickly. Black mold can be highly toxic to you and your family. It can get into your walls through tiny cracks and grow inside the home where it can get into the HVAC system and spread around the home. Getting rid of mold is tough once it has spread so as soon as you notice black mold anywhere near your windows you need to act fast.

Our team has seen quite a number of windows with black mold while providing service across Toronto. It can be a serious problem when left unchecked. Read on to discover how to get rid of black mold.

How Does Mold Get On Windows?

Mold spores can be deposited on your windows, sills and casings when the wind blows. Once the spores are on the windows or the frame moisture from condensation and the heat from the sun can cause it grow quickly. Having potted plants along the window sill can also cause black mold growth if you don’t carefully clean the areas around the pots.

How To Cleaning Black Mold

Cleaning up black mold is a little more involved than cleaning regular dirt off of your windows.

Before you take on black mold you need to make sure that have a few things:

  • Face mask / respirator
  • Protective gloves
  • Spray bottle with water

Make sure you don’t breathe in any of the mold spores. You should wet the area completely before you start cleaning. Getting the mold spores wet will keep them from flying off into other areas of the home or into the air where they might be breathed in by your family or pets. Make sure that all kids and pets are safely out of the area before you clean the mold.

Once you have your safety equipment ready to go; mix a cleaning solution:

  • Hot water
  • Dish detergent
  • Bleach

The dish soap will loosen the grip of the mold on the window so that you can remove it and the bleach will kill any mold spores in the area. Spray the area down with water. Then use a microfiber cloth or a sponge dipped in the cleaning solution to completely wet the moldy area. Really soak the area in the cleaning solution. Then use a soft steel wool pad or scrub sponge to loosen all the mold. If you are cleaning mold off a window sill or casing a small foam artist’s brush that you can get in any hobby store is a fantastic tool to use to clean mold off window sills and casings. The small size and unique shape can get the cleaning solution deep into the window sill to make sure that all the mold is killed.

Let the window and the window sills dry with the bleach mixture still on. Then spray the window and the window sills down again with water. Rinse the window and sills with plain hot water. Make sure that any towels, sponges, or clothes you used to scrub the mold go into a sealed plastic bag instead of directly into the trash. That way the mold can’t spread to your trash can.

After you have rinsed everything down with hot water turn a fan on the window and sill to dry it or use a hair dryer to dry it. Make sure it’s totally dry. Mold needs water to grow so making sure the window and sill have no water anywhere near them will prevent mold from growing again. If the mold is very stubborn you may need a stiff bristled brush to pry the mold off the window or the sills. Just make sure that you remember to always wet the area before scrubbing so that the mold spores don’t fall into the house. And never remove your mask or respirator.

Once the window and the sills are dry you shouldn’t have any more problems with mold. But you might want to apply a wood sealer to the wood window frame or paint over it to prevent any mold from growing in the future.

How To Remove Mold From Window Sill & Exterior

For exterior windows that have mold on them we highly recommend hiring professional window cleaning company to take care of this task. They will use a fungicide on the window itself to prevent the growth of mold and to prevent mold from blowing into the house from an open window. Professional cleaning of interior windows can help eliminate mold growth too. If you have a respiratory condition like asthma or allergies you should always call a professional window cleaner come in and clean the mold for you so that you don’t trigger your allergies or asthma. Professional cleaning once a year is strongly recommended for all homeowners.