Mold can develop on any surface exposed to prolonged periods of moisture and warmth and this includes your windowsills.

Cold air meeting your windows (which are warmer since your home is heated) condenses and runs down the window to pool on the sills. In addition, the sills tend to collect organic materials like dirt, dust, skin cells, plant pollens, etc. While you can clean and remove mold from a windowsill it’s best to prevent it from growing in the first place.

Here are some things you can do to prevent mold growth.

  • Keep your curtains or blinds open to allow circulating air to dry the moisture.
  • Use a dehumidifier in your home to remove excess moisture.
  • Apply a sealant to trim and windowsills to block moisture.
  • Get rid of the organic materials (dust, dirt, etc.) on the windowsills to deprive mold of its food source. Dust the sills a couple of times per week.
  • Lightly spray sills with Mold Off® to prevent mold growth, do not wipe off.

If you are unlucky enough to still develop mold, don’t panic. Mold Off® is a great mold destroyer as well as a preventer. Spray the sill and let the Mold Off® stand for 24 hours. Wipe it down and, if necessary, repeat. Mold Off® won’t strip paint or wood finish and destroys mold at the roots, not just on the surface.

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Testimonials

I bought a gallon bottle of your concentrate for use around our lake house. I was amazed at the effectiveness of the product. I had a bad mold situation on our pontoon boat carpeting. I soaked the carpet and let it dry. Once dry I used a stiff bristle brush to loosen up the residue and then vacuumed up the loose residue. The carpeting stayed mold free for over a year. I also used your product on some green mold on vinyl siding on the north side of our house. I just sprayed it on with a pump style garden sprayer and let it sit. I had to do nothing else. The green mold disappeared. That was 2 years ago and it is about time for me to do it again. I have found that your product also works extremely well on our wooden deck and surrounding cement pavers. I want to thank you for developing such a great product.

- D. Santucci