How do I clean mold from my window sills using baking soda?

  9 answers
  • Dwp7470b Dwp7470b on Jan 26, 2019

    Last I knew Ammonia Kills Mold, mainly So you can Spray your Window Cleanser on the Sill.

    • Sarah Chamberlain Sarah Chamberlain on Jan 27, 2019

      This is a bigger problem than window spray could handle. Full strength ammonia might work but I don't want to leave it because of our 7 cats. They are always in the windows! Thanks for the suggestion though.

  • Kelli L. Milligan Kelli L. Milligan on Jan 26, 2019

    Baking soda and white vinegar.

    • Sarah Chamberlain Sarah Chamberlain on Jan 27, 2019

      Thanks! This is an ongoing problem and baking soda and vinegar is a lot safer around our 7 cats!

  • Nancy Turner Nancy Turner on Jan 26, 2019

    I clean mine with Windex when I clean the windows. If you have mold/mildew you could clean them with bleach water to help with staining. Follow with a good spray of full strength vinegar to kill any mold/mildew spores that cleaning didn't remove. Vinegar is one of the best antibacterial and antifungal agents that there is, and super cheap, too. I keep a spray bottle of vinegar in the kitchen all the time for cleaning everywhere in the house. Let the vinegar dry if you can, or at least let it set on the area for ten or fifteen minutes to do its work the best. I hope this helps you with your mold, Sarah, if there is a dampness problem, it may come back, but the vinegar will hopefully keep it away longer.

    • See 2 previous
    • Nancy Turner Nancy Turner on Jan 27, 2019

      The bleach water will be rinsed off by the vinegar, the bleach water does not have to be strong, it is only used to clean and remove some of the mold/mildew. The vinegar is what will help get rid of the mold/mildew by killing the spores. You can treat the window sills with vinegar when you clean to try to stave off the mold from taking hold. I have single pane windows, but in the past have had double pane Windows and you can still have moisture problems from humidity. Our house always has somewhat higher humidity due to all the large aquariums, so when I increase the humidity further by boiling water for potatoes or pasta, my kitchen and living room windows all fog up. I have had that happen sometimes even with double pane windows. When the windows fog up, try to keep the sills dry and that will help with the mold problem, too.

  • Karen Karen on Jan 27, 2019

    Bleach and water

  • Hi Sarah - There are several ways to get rid of mold, but most importantly, you need to address the root cause to keep it from returning. This article focuses on the bathroom, but is an overall great article that covers methods of how to remove mold, if bleach is safe to use, and how to prevent it from coming back. Hope this helps! Hugs, Holly

  • Oliva Oliva on Jan 27, 2019

    You may have a defective sill plate, causing water to remain on the sill and be absorbed into the surrounding space. Have a carpenter check it out and see if replacement sills are needed.

  • Redcatcec Redcatcec on Dec 22, 2021

    Vinegar kills the mold spores and is safe around animals.

  • YOu have to mix it with vinegar, but you can use the vinegar alone. You don't need baking soda unless you need to scrub.