How Trees Planted Too Close to Your Home Can Damage the Foundation

Trees add beauty, shade, and value to your property, but when they are planted too close to a home’s foundation, they can create costly problems over time. This is especially true in Texas, where the soil contains a high amount of clay. Clay soil expands when wet and shrinks when dry, creating constant movement beneath slab foundations.

One of the most common issues involves tree roots pulling moisture from the soil around and beneath the foundation. During hot summer months, roots can dry out the surrounding soil unevenly. When clay soil dries, it shrinks, causing sections of the foundation to settle. After heavy rain, the soil swells again, pushing upward. This shrink-and-swell cycle places stress on the foundation and may lead to cracks in the slab, brick veneer, or interior walls. Homeowners may also notice sloping floors, sticking doors, or windows that no longer open properly.

Roots can also cause direct physical damage. While they usually do not break solid concrete on their own, large roots can grow beneath the slab or press against weak points, widening existing cracks or causing sections of the foundation to shift. In addition, roots frequently invade underground utilities such as sewer lines and drain pipes, leading to clogs or leaks.

To reduce these risks, trees should be planted a safe distance from the home. Small ornamental trees should generally be 8–15 feet away, medium trees 15–25 feet, and large shade trees 30–50 feet or more from the foundation.

If you already have trees near your home, watch for warning signs like new cracks or uneven floors. A professional home inspection can help identify early issues before they become expensive repairs.