Cracks in Basement Floor and Walls

Cracks on the basement floor and walls are among the most common signs of water infiltration. The size of the crack doesn’t matter; even the smallest crack can let water in.

Repairing Cracks in Basement Floor and Walls in Northern Virginia, Shenandoah Valley, North Central Virginia, and West Virginia

Are you troubled by mysterious cracks appearing in your basement floor, walls, or foundation?


They are physical openings that develop in the structural components of your home’s foundation. These cracks can vary in size, shape, and severity, but they all share a common theme: they are potential indicators of underlying water-related issues. Cracks in your basement can allow water to seep in, leading to dampness and mold growth and even compromising the structural integrity of your home.


To effectively address cracks in basement floor and walls, the best and most reliable approach is to reach out to Lux Foundation Solutions, a trusted and knowledgeable waterproofing contractor. Schedule a free estimate today! We serve Northern Virginia, Shenandoah Valley, North Central Virginia, West Virginia, and nearby areas.

Do These Signs of Cracks in Basement Floor and Walls Look Familiar?

The symptoms

Here are some examples of how cracks in the basement floor and walls may appear. If you notice similar signs in your basement, it’s time to contact Lux Foundation Solutions for help.



  • Visible cracks
  • Uneven cracks
  • Multiple cracks
  • Cracks in corners
  • Cracks accompanied by displacement
  • Horizontal or diagonal cracks 

What Causes Cracks in Basement Floor and Walls?

Cracks in the basement floor and walls can be a sign of a basement water problem, and there are several potential causes. Here are some common factors that can lead to basement wall cracks and water issues:

Hydrostatic Pressure

When water accumulates in the soil surrounding your foundation, it exerts pressure on the basement floor and walls.


This pressure can lead to cracks as the walls and floors try to accommodate the force. When the pressure is too great, it can result in cracks, allowing water to seep into the finished living space, compromising the foundation’s structural integrity.


It may not only dampen your basement floors, but it may cause a significant amount of pressure on the walls, and if it cannot withstand the force, that could lead to their bowing or cracking.

Poor Drainage

Insufficient drainage around a house’s foundation can cause cracks in basement walls, floors, and foundations. If rainwater or groundwater isn’t directed away from the structure effectively, it can accumulate around the foundation. 


Over time, this excess moisture can weaken the soil and put pressure on the walls and floor, leading to cracks. Poorly designed or clogged gutters, downspouts that discharge water too close to the foundation, and improperly graded landscaping can all contribute to poor drainage.

Foundation Settling

Over the years, a building’s foundation may settle or shift due to natural soil movements, inadequate soil compaction during construction, or changes in moisture levels. 

As the soil settles unevenly, these movements can create stress on the basement walls and cause the foundation to sink or shift, leading to cracks in the basement floor and walls. This settling is often more pronounced in areas with expansive clay soils or regions prone to earthquakes. Over time, the constant movement and settling can strain the concrete or masonry materials, resulting in visible cracks.

Construction Defects

Poor construction techniques or substandard materials can contribute to basement wall cracks. These defects may include inadequate reinforcement, improper concrete curing, or insufficient waterproofing measures, weakening the foundation’s integrity.


These defects can become apparent over time as the house undergoes natural stresses and environmental changes. Cracks that result from construction defects tend to develop sooner and can be more severe than cracks caused by natural settling.

Our Solutions

Wall anchor

carbon fiber

What should I do if I notice minimal non-structural or structural cracks in my basement floor and walls that are not widening or showing signs of movement?

If you notice minimal non-structural or structural cracks in your basement floor and walls that are not widening or showing signs of movement, it’s important to act quickly. These types of gaps can be caused by temperature changes, moisture, or settling of the foundation. 


However, they can eventually lead to larger structural issues if left untreated. The solution to prevent further damage is to reinforce the area with carbon fiber. Carbon fiber is a lightweight and durable material that can easily be installed as reinforcement on your basement wall. It’s an effective solution that will prevent the crack from widening or becoming a bigger problem in the future.

How do you stop the basement floor and walls from cracking?

To prevent basement floor and walls from further cracking, one of the recommended solutions is to use wall anchors. Wall anchors are engineered systems that are used to anchor the walls to suitable soil to prevent them from moving. These anchors are inserted into the stable soil surrounding the affected areas of the foundation and then attached to the walls. They work by anchoring themselves into the stable soil and provide your foundation with the support it needs to counteract the unstable soil. 

Wall anchors are an effective way to prevent basement floors and walls from cracking, and they are often used in situations where there is a risk of soil movement or settling. Additionally, they are minimally invasive to install and require minimal to no maintenance, making them a cost-effective solution for homeowners.

If you’re looking for basement waterproofing solutions, look no further! Lux Foundation Solutions’ experienced team is here to make your basement dry and secure. Contact us today to find out more about our services or to schedule a free estimate.

Contact Us For Basement Waterproofing in Northern Virginia, Shenandoah Valley, North Central Virginia, and West Virginia

If you notice any cracks in your basement floor and walls, addressing them early on is essential to prevent further issues. At Lux Foundation Solutions, we have 25+ years of combined experience helping homeowners in Northern Virginia, Shenandoah Valley, North Central Virginia, West Virginia, and the surrounding areas keep their basements dry. 


We offer free estimates with our specialists, who will identify the cause of your basement cracks and develop a personalized plan to resolve the issue. To learn more about our basement waterproofing and foundation repair services, take a look at our website or contact us today!

Request a free Estimate


Can water damage cause cracks in basement floor and walls?

Yes, water damage can certainly cause cracks in basement floor and walls. This is because when water seeps into the soil surrounding your foundation, it increases the pressure on the basement walls and floor, which can lead to gaps. Additionally, when it freezes and thaws over time, particularly during winter, water can expand and contract in those tiny crevices, causing them to expand even further.


If left untreated, these cracks can compromise the structural integrity of your foundation, making it more prone to collapse. It’s essential to address them as soon as possible, particularly if you live in an area prone to heavy rainfall or snowfall. 


It’s also important to address any underlying drainage issues on your property to prevent further damage. By redirecting water away from your foundation and ensuring that your gutters and downspouts are functioning properly, you can help mitigate the risk of future water damage and prevent gaps from reappearing. In short, while cracks in your basement walls and floor may seem minor, they can have serious consequences if left unaddressed. 


Contacting professionals like Lux Foundation Solutions can ensure a thorough assessment of the cracks’ severity and provide tailored solutions to repair them, safeguarding your basement and foundation from further damage.

Is it normal to have cracks in the basement floor?

It’s common for cracks to appear in a basement floor, especially in older homes or those built on expansive soils. However, not all are harmless and can signal underlying structural issues. 


Hairline cracks less than a quarter-inch wide are typically not concerning. However, larger gaps, uneven flooring, or cracks accompanied by moisture or other signs of damage should be addressed by a professional foundation contractor. 


While some gaps may be cosmetic in nature, others can indicate a more serious problem with the foundation. Therefore, if you notice any cracks in your basement floor, it is recommended to have a professional assess the situation to determine the cause and severity of the issue.

How do I know if my basement wall, floor, or foundation cracks are serious?

Basement walls, floors, or cracks in the foundation are a common problem among homeowners, and it’s important to know whether they’re serious or not. Determining the seriousness of the gaps requires a professional evaluation. However, there are a few signs to look for to determine the severity:


  1. Cracks that are wider than 1/8 inch or that continue to widen over time may signify significant issues. Also, diagonal or stair-step gaps and horizontal cracks. 
  2. Cracks that are accompanied by bowing, bulging, or leaning walls; this is a sign of a serious problem and require immediate attention.
  3. Water seepage or moisture coming in through the gaps. 


It is crucial to consult a qualified foundation specialist who can assess the gaps and recommend appropriate measures to address any underlying issues and ensure the stability and safety of your home.

How to repair small cracks in basement floors?

Yes, fixing the basement wall, floor, or cracks in the foundation as soon as possible is important. Ignoring these issues can lead to water leaks, mold growth, and even structural damage to your home. These gaps can also worsen over time, making the repair process more difficult and expensive in the long run. 


Consulting with a professional foundation repair expert like Lux Foundation Solutions is the best course of action, as they can evaluate the severity of the damage and recommend the appropriate solution to ensure the safety and stability of your home.