Foundation damage is one of the most expensive home repairs a Tarrant County homeowner can face. And trees are frequently blamed — sometimes correctly, sometimes not. Understanding the actual relationship between tree roots and foundations in North Texas can help you make better decisions about the trees on your property.

The relationship between tree roots and foundation damage in Tarrant County is more complex than most homeowners realize. Here's what's actually happening:

The clay soil factor. Tarrant County sits on expansive clay soils — the same soils that make foundation problems so common throughout DFW. These soils shrink dramatically during drought and expand when wet. This shrink-swell cycle is the primary driver of foundation movement in North Texas.

How trees make it worse. Large trees near a foundation extract significant amounts of moisture from the soil through their root systems. During drought, a large tree can dry out the soil near your foundation more than the surrounding soil, creating uneven shrinkage — and uneven foundation movement.

Direct root damage. Tree roots can also directly damage foundations by growing into cracks, under footings, or through drainage systems. This is less common than the moisture-extraction mechanism but does occur, particularly with older foundations and aggressive-rooting species.

Not all trees pose equal risk. The highest-risk trees for Tarrant County foundations are:

Silver maple — Aggressive, shallow root system; high water demand; commonly found in older Tarrant County neighborhoods

Cottonwood — Very high water demand; large root system; not recommended near structures

Willow — Extremely high water demand; roots actively seek water sources including drainage systems

Bradford pear — Shallow, aggressive roots; also structurally weak and prone to storm failure

Lower-risk trees for Tarrant County foundations include live oak, cedar elm, and most native species — they have deeper root systems and are better adapted to the local soil conditions.

A general rule of thumb: trees should be planted no closer to a structure than their expected mature height. A tree that will reach 50 feet tall should be planted at least 50 feet from your foundation.

In practice, many DFW homes have trees much closer than this — often because the trees were planted when they were small and the future size wasn't considered. If you have a large tree within 20–30 feet of your foundation, it's worth having both the tree and your foundation assessed.

Don't panic. A tree near your foundation doesn't automatically mean foundation damage is occurring or inevitable. Many DFW homes have large trees near their foundations without significant problems.

Get a foundation assessment. If you're concerned about foundation movement, have a structural engineer or foundation specialist assess your foundation. They can determine whether movement is occurring and whether it's related to tree roots or other factors.

Get a tree assessment. Tree Crew can assess the trees near your foundation and provide recommendations — whether that's root pruning, removal, or simply monitoring.

Consider root barriers. For trees you want to keep, root barriers (physical barriers installed in the soil to redirect root growth) can reduce the impact of roots on nearby structures.

Maintain consistent soil moisture. One of the best things you can do for your Tarrant County foundation is maintain consistent soil moisture around your home — especially during drought. This reduces the shrink-swell cycle that drives most foundation movement.

Sometimes the right answer is removing a tree that poses a significant risk to your foundation. This is particularly true when:

• The tree is a high-risk species (silver maple, cottonwood, willow) very close to the foundation
• Foundation damage is already occurring and the tree is a likely contributing factor
• The tree is dead, diseased, or structurally compromised — creating both a foundation risk and a safety hazard

Tree Crew can help you assess whether removal is necessary and provide a free estimate for the work.

Tree Crew has 27 years of experience with tree and foundation issues throughout Tarrant County. We serve Fort Worth, Mansfield, Arlington, Grand Prairie, and the surrounding area.

Call (972) 999-3627 or contact us online to schedule your free assessment.