Mold in Crawl Space: What Causes It and What You Can Do About It


Due to the lack of light and dampness, mold problems are quite common in crawl spaces and basements. Sump pumps and other drainage devices are often the culprits. They combine poor design with normal wear and tear to create a mold problem.

What Causes Crawl Space Mold in the

Mold can often develop in crawl spaces and basements due to dampness. Mold can be caused by a number of factors, including flooding, water damage and plumbing leaks. Poor drainage, inadequate ventilation, cracks in crawl spaces, foundation cracks, and lack of proper ventilation

Tips for Treating Mold in Crawl Space

Because of the tight spaces and floor joints, crawl space mold can be difficult to treat. You can do some DIY work if the mold is less than 10 square feet. These are not the same procedures professionals would use.


Mix vinegar and water in 1:1 in a spray bottle. Spray the mixture all over the crawl space walls and floors. Allow it to sit for a while, then scrub the affected area. After that, rinse with water.

Baking soda

Baking soda can be spread on furniture or floors and left to sit overnight. Then, you can clean the area with water in the morning. This will get rid of dead mold and any other dirt. Baking soda is great because it doesn’t leave behind any bad odors. Just make sure you thoroughly clean everything.


Borax, another chemical that is great at fighting all types of molds, leaves no traces. This substance can be toxic so don’t use it where you aren’t going to breathe it in. Borax can cause skin and eye irritations, and it can also be dangerous to pets.

This article was written by a professional at JKI Industries. JKI Industries is one of the leading providers of construction services to the emerging residential and commercial construction industries throughout Florida and the Carolinas. With over 30 years of experience, JKI Industries continues to strive as a full‐service construction contracting company and to provide top-notch results for various customers, whether commercial or residential, large, or small.

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