Skip to Main Content

Common Causes of Crawl Space Damage

A crawl space is an important area under a home, but it’s not without its problems. Crawl space issues can be caused by a variety of things like open vents and humidity. Read on to learn more.

Schedule Your Free Inspection

Crawl spaces are an instrumental part of the home because they serve as the foundation and allow homeowners to conceal essentials such as plumbing and electrical components.  Unfortunately, crawl spaces also bring a laundry list of potential issues that can cost you thousands of dollars and significantly reduce the safety of your home.

Out of sight out of mind is a sentiment we find many homeowners apply to their crawl space. After all, if you can’t see it, is it really there? The obvious answer is yes, but by ignoring your Charleston, Huntington, or Morgantown, home’s crawl space, you may be missing out on the warning signs.

Crawl space damage can be the result of many factors. The following are some of the most common sources our team uncovers that necessitate a complete crawl space repair and encapsulation in West Virginia.

Over Spanned Joists

Your entire house is built upon wooden joists held up by a foundation. Joists are spaced according to the amount of weight they can hold over a certain distance. An over-spanned joist is a joist under more weight than it can support. While an error in the construction can cause this, it is typically the result of a joist that weakens over time. If you notice a bend or sag in the floor of your house, then you may have one or more joists under more weight than they can carry. 


Humidity is a leading cause of crawl space damage. A high relative humidity can make an entire house uncomfortable and create additional problems that pose a genuine risk to the health and safety of those inside. A common byproduct of humidity is mold and mildew, both of which have the potential to cause short and long-term respiratory damage. Humidity can also cause wood rot which can significantly weaken the structure of your home.

Open Vents

If your home has a crawl space, there is a good chance it has vents along the perimeter. An old misconception about these vents is that they allow air to circulate and thus reduce humidity. This has since been proven false, and the downfalls of leaving a crawl space vent open significantly outweigh the benefits. An open crawl space vent leaves all kinds of opportunities for moisture, pests, rodents, and groundwater to infiltrate and damage the foundation in your West Virginia home.


The average rainfall in West Virginia exceeds the national average, which means we have tons of excess water to manage. Without a proper water management system in place, excess groundwater seeps through the ground and enters the crawl space, causing significant damage over time.

Protect Your Crawl Space, Protect Your Investment. Contact Basement Authority of West Virginia Today!

We at Basement Authority of West Virginia dedicate ourselves to preventing crawl space damage through our proven waterproofing and encapsulation methods. These can range from an interior drainage system and a sump pump, to a vapor barrier and wall insulation, as well as a dehumidifier and airtight vent covers. All these systems are designed to work together to combat the sources of crawl space damage like humidity and groundwater.

If you suspect there is a problem with your crawl space, don’t wait for issues like sagging floors and mold growth to take hold in your home. Contact us to schedule a free inspection and estimate with one of our experts today! We are proud to serve homeowners in Charleston, Huntington, Morgantown, and nearby!

    Contact Us

    For Your Free Inspection

    * All fields are required.

    Publish Date:

    Last Modified Date:


    Clarksburg, WV

    1807 West Pike Street Ste C
    Clarksburg, WV 26301