What Causes Foundation Cracks?

Foundation Cracks In Brick Mortar Concrete Of House Or Building

Unraveling the Mystery of Foundation Cracks

Foundation cracks are a common concern for homeowners, as they can lead to a myriad of issues, from structural damage to water intrusion. Understanding the root causes of these cracks is essential for both prevention and repair. In this comprehensive guide, we at Sewer TV will delve into the various factors that contribute to foundation cracks, and how you can protect your home’s structural integrity.

Soil Type and Soil-Related Issues

Soil type plays a significant role in foundation settlement and the formation of cracks. Expansive soils, such as clay, can swell when wet and shrink when dry, causing significant pressure on the foundation walls. In contrast, poorly compacted or loose soil may settle unevenly, leading to differential settlement and cracks. Sewer TV’s expert team can help you identify soil-related issues and recommend solutions to stabilize your foundation.


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Insufficient or Poor Drainage

Improper drainage can cause water to accumulate around your foundation, which may lead to several problems. Excess water can erode the soil, weaken the foundation, and create hydrostatic pressure against the foundation walls, resulting in cracks. To prevent drainage-related issues, Sewer TV recommends installing a proper gutter system and grading the soil to direct water away from the foundation.

Tree Roots

Large trees planted too close to the foundation can cause damage as their roots grow and expand. The roots can exert pressure on the foundation walls, leading to cracks. Additionally, tree roots can absorb large amounts of water from the soil, causing it to shrink and settle unevenly. Sewer TV suggests consulting with a certified arborist to assess the risk and recommend appropriate measures to protect your foundation.

Frost Heave

In colder climates, frost heave occurs when the moisture in the soil freezes and expands, exerting upward pressure on the foundation. This pressure can cause the foundation to lift and create cracks. Sewer TV’s experts can assess your home’s vulnerability to frost heave and recommend solutions to mitigate the risk, such as proper insulation and drainage.

Cracked Bricks Caused By Sinking Sagging Foundations

Concrete Shrinkage

Concrete foundations naturally shrink as they cure and dry out. While minor shrinkage cracks are normal and not a cause for concern, significant shrinkage can lead to structural issues. Sewer TV’s team of professionals can determine if your foundation cracks are due to excessive shrinkage and suggest appropriate repair methods.

Structural Overloading

Foundation cracks can also occur when the weight of your home exceeds the foundation’s load-bearing capacity. This can happen due to poor construction, the use of substandard materials, or even from adding heavy structures or appliances to your home. Sewer TV’s structural engineers can evaluate your home’s load distribution and recommend ways to alleviate the stress on your foundation.

Settlement and Aging

Over time, foundations can settle due to natural soil compaction or changes in the moisture content of the soil. This settlement can lead to cracks in the foundation, which may worsen with age. Sewer TV’s foundation specialists can assess the severity of the settlement and recommend repair options to restore your home’s structural integrity.

Protect Your Home with Sewer TV's Expertise

Foundation cracks are not only unsightly but can also lead to significant structural problems if left unaddressed. By understanding the various causes of foundation cracks, you can take proactive steps to prevent and repair them. Sewer TV is here to help you with our expert team of professionals, offering comprehensive foundation inspection and repair services. Contact us today for a consultation and let us safeguard your home from the dangers of foundation cracks.


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Dave Flynn

Established in 2002. SewerTV is a licensed, bonded, and insured plumbing Contractor