How to Kill Mould on Window Sills

Safety precautions. Before you get to the actual cleaning, you should have in mind, that mould can be quite dangerous to your health, and you should take all the necessary precautions in order to avoid respiratory issues and allergies. Since removing mould from a surface can cause dangerous spores to be released into the air, you should wear a dust mask, as well as safety goggles and gloves. This will prevent you from touching or inhaling the dangerous spores. You should also place a plastic covering material around the window and tape it to the ground. This way if anything falls from the window sills, it won’t get caught in your carpet and spread around the house. It’s also a very good idea to open a window while you’re cleaning mould off your windows. This way the mould spores will have the chance to fall outside your home, instead of inside it. You should also pay extra attention to the weather – it’s best to clean mould from window sills when the weather is sunny and dry, because this way the sills will dry a lot faster, preventing the chances of new mould spores to develop.

Prepare the cleaning solution. Once the premises are prepared for the cleaning session, it’s time to prepare the cleaning solution you’re going to use. There are many things which can kill mould on window sills. Some of them are strong chemical solutions, and some are practically harmless. The completely natural one I like to use, involves mixing some white vinegar with ammonia. Another alternative you can use, if you don’t have vinegar and ammonia in your home, is bleach. All you have to do is mix half a cup of bleach with three cups of warm water. Mix these two ingredients together and stir. You can even leave it for about 20 minutes so the solution can be completely ready.

Remove the mould. Once the solution is ready, you should get a nylon brush, pour some of the solution on the window sills, and start scrubbing the black mould off the surface. Dip the nylon brush in the cleaning solution often, in order to provide better cleaning effects. Also, you should regularly wipe off all the mould and dirt that’s been scraped off, in order to prevent staining and dirt all over the house. Use a clean rag to do it. Once you manage to scrub the entire surface of the window sills, you should let them to dry completely. Once it does, check for any leftover mould or residue, and if you notice any, clean them with a dampened rag. You should also check and clean the window blinds, in case they have also been infected by the mould. Especially wooden blinds are very prone to humidity, and they can easily catch mould, even if you live in a very dry area. Once you’ve cleaned all signs of mould from your window sills, you should leave the surface to dry once again before you close the window.

Use sandpaper. If after the entire cleaning session you can still notice some black spots from mould, you can some sandpaper to scrub them off. This is also a good solution for window sills, which haven’t been painted yet.