Foundation cracks can be a real headache for homeowners. If they are not fixed promptly, they can become a major headache. Understanding what causes them should be the first step in addressing the problem. Identifying the root causes early on can save time and money. So, let’s dive into what causes foundation cracks and how you can go about fixing them.

To learn more or schedule a consultation with our foundation crack experts, contact The Crack Crew online or by phone today at 314-805-5692.

What Causes Foundation Cracks?

The most common causes for foundation cracks include:

• Soil Movement: One of the most common culprits behind foundation cracks is soil movement. Soil isn’t static. It expands when wet and contracts when dry. This continual expansion and contraction can cause the foundation to settle unevenly, leading to cracks. If you live in an area with clay-rich soil, be especially wary, as this type of soil is highly reactive to moisture changes.
• Erosion & Drainage Issues: Water is great for your plants but not so much for your foundation. Too much water can lead to soil erosion and subsequently weaken the foundation. Poor drainage around the house can escalate this problem. Make sure your gutters and downspouts are in good shape and direct water away from your home.
• Tree Roots: While trees can enhance the look of your yard and provide shade, their roots can also be another cause of foundation cracks and problems. As they grow, roots seek out moisture and can end up pulling the soil away from your foundation, leading to gaps and cracks.
• Temperature Fluctuations: Temperature changes can also wreak havoc on your foundation. Freezing and thawing cycles during winter can cause the soil to shift, leading to cracks. Those living in regions with significant seasonal temperature changes, like St. Louis may notice more foundation issues over time.
• Poor Construction: Sometimes, the root of the problem goes back to the initial construction of the house. If the foundation wasn’t laid down correctly, you might experience issues sooner rather than later. Poor materials or methods can result in a weak structure that’s more susceptible to cracking.

Foundation Crack Repair Techniques

Identifying the cracks is just the beginning. The real challenge is figuring out how to fix them. Here are some techniques our experts use for tackling foundation cracks.

• Epoxy Injections: For small to medium-sized cracks that don’t indicate severe structural problems, epoxy injections are a popular choice. The epoxy resin fills the crack and seals it, preventing water from entering and causing further damage.
• Polyurethane Foam Injections: This technique is similar to epoxy injections but is better suited for cracks where water is leaking through. The foam expands to fill the crack and seal it against moisture.
• Carbon Fiber Strips: For larger cracks that may indicate a bowing wall, carbon fiber strips can be applied. These strips are bonded to the wall with strong adhesives and can help stabilize it, preventing further cracking.
• Underpinning: If the problem is more severe and rooted in the soil beneath your foundation, you may need to consider underpinning. This involves extending the foundation deeper into the ground to reach more stable soil, thus providing additional support.
• Piering and Slabjacking: Foundation piering and slabjacking involve lifting and stabilizing the foundation by injecting material underneath or installing piers to support the structure. This is a more intensive process but can be highly effective for serious foundation issues.

Contact The Crack Crew for Foundation Repairs in St. Louis

The Crack Crew is your local expert in foundation repair and basement waterproofing. We understand the unique soil conditions of the area and offer specialized solutions tailored to meet your needs. When working on your home, our team starts by finding out what causes foundation cracks. From minor cracks to significant structural repairs, The Crack Crew has the experience and knowledge to get your home back in shape and ensure permanent, lasting repairs. Contact our foundation and basement waterproofing company today to learn more.