Finding a crack in the wall of your basement can be alarming at first. If this is the first time you’ve seen one, you might be worried about the structural integrity of your home. Fortunately, in many cases, these cracks are fairly common and nothing to worry about. However, knowing what causes them can help you understand when to start thinking about basement wall crack repairs.

What Causes Basement Wall Cracks?


Cold temperatures cause concrete to contract, and in the summer, when the temperatures rise, it causes the concrete to expand. This back and forth of contracting and expanding each season eventually leads to cracks. If the inside of your basement is warm, but it’s freezing outside, the tensile stresses can also lead to cracks. 


basement wall crack repairToo much moisture in the soil around your foundation can cause the earth around it to expand. This causes added weight and puts pressure on the walls, which forces them inward and leads to cracks. Excess moisture can be the result of snow melting, heavy rain, poor gutters, and improper grading. 


Settling typically occurs when the soil under your home is too unstable to support the weight. As the soil displaces under the pressure, it causes shifting, which leads to cracks. 

What Are the Options for Basement Wall Crack Repairs?

While many cracks are normal and harmless, some might be indications of a structural problem. Small hairline and nonstructural cracks—the type that is generally seen coming from openings such as windows and doors—are usually nothing to worry about. Large cracks, however, should be dealt with by a professional. Structural cracks tend to run at angles from the bottom to top. If the crack runs in this pattern or you aren’t sure, call a professional for help. When it comes to repairs, it’s best to err on the side of caution. 

If you’re looking for a professional to help with basement wall crack repairs, basement floor crack repairs, concrete foundation repair, garage floor crack repair, or driveway and sidewalk crack repairs, The Basement Crack Doctor in Chesterfield, MO, can help. With over 30 years of experience, this team of specialists has been diagnosing and repairing cracks before they can lead to bigger issues. They offer competitive prices and a lifetime warranty on their work. Visit their website to learn more about their services, or call (314) 931-6000 to schedule a free estimate.