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5 Benefits of Waterproofing Basement Walls

Wall vapor barrier across a basement wall, man in corner.

Living in the Southeast United States, homeowners are no strangers to wet and humid weather. In homes with a basement, this can quickly turn into an issue—leading to wet basement walls. The most effective method for waterproofing basement walls is installing a basement wall vapor barrier.

On this page, we’ll discuss five of the biggest benefits of doing so!

What’s the Best Way to Waterproof Basement Walls?

Waterproofing basement walls is best done with a basement wall vapor barrier. Most basement walls are built with porous materials like concrete or brick. Unfortunately, porous materials are made up of small, nearly invisible holes that allow humid air and water to seep through them. By design, vapor barriers prevent humid air from getting all the way through porous basement walls, keeping the area dry as a result.

1. Moisture and Humidity Control

Wall vapor barriers are essential in preventing moisture from entering through your basement walls. Moisture can lead to various problems, including mold growth and higher humidity levels inside your home. By installing a vapor barrier, you ensure that these issues are kept at bay, maintaining the structural integrity of your house and the health of its inhabitants. A dry basement is a safe and comfortable basement.

2. Improved Energy Efficiency

Wall vapor barriers help stabilize the temperature inside your basement by blocking external cold and moisture. This stability means your heating and cooling systems don’t have to work as hard, which can lead to lower energy costs. AFS Foundation Repair & Waterproofing Specialists have seen many homes benefit significantly from this improvement. Energy efficiency not only saves money but also makes your home more environmentally friendly.

3. Protection Against Structural Damage

Moisture is a major enemy to foundation walls, potentially causing structural damage (like wall cracks) over time. Vapor barriers protect basement walls by preventing moisture from seeping too far into them. In the Southeast, where soil movement and high moisture levels are common, this protection is invaluable. By installing a vapor barrier, you are taking a proactive step in extending the lifespan of your home’s foundation.

4. Enhanced Indoor Air Quality

Moist basements are breeding grounds for mold and mildew, which can significantly deteriorate indoor air quality. By installing wall vapor barriers, you block moisture and prevent the growth of these harmful organisms. This is especially beneficial for residents with allergies or respiratory issues, as it creates a healthier living environment. Clean air in your home starts with a dry basement.

5. Increased Usable Space and Property Value

A waterproofed basement opens up new possibilities for using this space in your home. Whether for storage, a recreational area, or additional living space, a dry basement is versatile and valuable. Moreover, waterproofing your basement can increase your property’s market value and appeal to potential buyers. Homeowners in the Southeast have praised AFS for transforming their basements into functional and appealing parts of their homes.

Overview of Other Basement Waterproofing Methods

While wall vapor barriers are highly effective, AFS Foundation Repair & Waterproofing Specialists also recommend other methods depending on your home’s needs. These are:

Basement drainage system being measured with a level.

When working alongside a vapor barrier, these systems together provide a comprehensive moisture control solution that keeps the entire basement dry. Having a comprehensive waterproofing system with different tools working together is one of the most valuable investments for any homeowner.


It’s a good idea to check your basement for signs of moisture or water damage at least every season, or four times a year. Pay special attention during heavy rainfalls or rapid snow melts, as these are times when your basement is most at risk for water intrusion.

Some molds, like black mold, can make you sick, causing breathing problems, allergies, and flu-like symptoms. Being around mold for a long time can make conditions like asthma worse. To stop mold from coming back, it’s important to find and fix any water leaks or dampness in the basement.

Wet basement walls pose significant risks including structural damage to your home’s foundation and increased growth of mold and mildew, which can harm health, particularly for those with allergies or respiratory problems. A persistently wet basement can also lower your home’s value and reduce the amount of usable space.

Schedule a Free Basement Inspection With AFS

AFS installer with metal rod over shoulder and smiling. Work truck in background.

Damp basement walls make your basement uncomfortable and make your home less safe. When you work with a professional team like AFS to waterproof basement walls, you can put water back in its place for good.

With industry-leading solutions and a team with over 20 years of experience, you can count on AFS for your basement waterproofing needs. We serve homeowners across the Southeast United States, so if your home needs waterproofing solutions, contact us today to schedule a free inspection and get started!

Related Resources

Ted Dryce

Ted Dryce

Content Writer

Ted is an SEO Content Writer who has been with Groundworks since 2021. He’s covered home repair topics ranging from crawl space encapsulation to regional soil conditions. When he’s not working, Ted is performing improv comedy and working on his own creative projects.

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