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Is Mold In a Crawl Space a Health Problem?

Mold spores growing on a wooden crawl space beam.

Is mold dangerous? What health problems can it cause? What are the signs of mold allergy? How can I protect my loved ones? These questions are natural. After all, no one likes mold, especially if its growing right under your feet. On this page, you’ll find answers to these questions and learn how to fix the problem.

What Are the Health Risks Associated With Mold?

Mold becomes dangerous when it attaches itself to organic materials in a damp crawl space, the perfect condition for growth. Existing moisture allows the mold to grow and produce mold spores. When these float in your home, it causes serious allergic reactions. Prolonged exposure can worsen asthma problems and in some cases, trigger autoimmune disease.

What Are the Symptoms of Mold Exposure?

Interestingly, people react differently to mold exposure. Some individuals will show no signs, while others will manifest a variety of bodily responses. If you’re allergic to foreign particles, you’re likely to experience one or more of the following symptoms or signs:

  • Itchy eyes/skin
  • Stuffy nose
  • Skin rashes
  • Wheezing
  • Persistent coughs
  • Laborious breathing

See a doctor if you experience one or more of the above symptoms.

What Are the Signs of Crawl Space Mold?

Unsure if mold is growing in your crawl space or simply want to know what an infestation looks like? Here are several signs that should prompt you to contact your basement or crawl space contractor so they can perform an in-depth inspection:

Some mold may appear black when it’s not actually black mold. Only a mold removal expert can ascertain what type of mold you’re up against. And that’s why testing is really important.

Mold growing near wooden floorboards inside a home.

How to Prevent Crawl Space Mold

The spores that lead to mold are always present, so you have to cut off the sources that allow them to thrive. Crawl space encapsulation is the best way to do that, and it involves a few different water management tools working together. These are:

With crawl space encapsulation installed, your crawl spaces environment stays dry and controlled. Without moisture or humidity taking over your crawl space, mold won’t have a chance to thrive and cause problems for both your home and loved ones.

Keep Crawl Space Mold Under Control With Ohio Basement Authority

Ohio Basement Authority work truck.

Noticing signs of mold in your crawl space? Act sooner rather than later to avoid sever damage. Schedule a free crawl space repair inspection with Ohio Basement Authority, serving homeowners across the state since 2009. We provide lasting fixes and quality service!


DIY solutions often address only surface issues, neglecting underlying moisture problems. Enlist the help of a mold remediation specialist immediately. Contact Ohio Basement Authority for a free inspection and comprehensive moisture management fix. 

Mold is frequently mistaken for wood rot. While both can impact structural integrity, wood rot is the primary attacker of crawl space joists and beams, leading to sagging floors. Wood rot is generally not toxic, but different types of mold can worsen health problems like asthma and allergies. Ohio Basement Authority determines what problem lives in your crawl space and how to best address it during a free inspection.

Yes, frequent inspections help identify issues before they worsen and result in widespread mold growth or other issues. After Ohio Basement Authority encapsulates your crawl space, you can benefit from our annual maintenance plans. We return yearly to evaluate your crawl space and ensure its ongoing safety. Contact us to learn more and to schedule a free inspection.

Holly Richards-Purpura

Holly Richards-Purpura

Content Writer

Holly is a Content Writer for Groundworks who has written and edited web content for the foundation services industry for almost 10 years. With a background in journalism, her passion for the written word runs deep. Holly lives in Columbus, OH, with her husband. Along with educating homeowners, she also has a big heart for the Big Apple.

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