If you live in Houston or anywhere with expansive clay soil, you’ve probably heard about root barriers. They’re designed to stop tree roots from creeping under your home and damaging the foundation. But while root barriers can be a game-changer, there’s a lot of misinformation out there that could cause more harm than good.
Let’s clear up the confusion. Here are five root barrier myths that might be hurting your home (and your wallet).
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Installing a Root Barrier: Pros, Cons, and Methods
Myth #1: Root Barriers Are Only for Big Trees
Truth: Even small trees can cause major foundation issues if planted too close to your home.
In Houston, where the soil expands and contracts dramatically with moisture, tree roots can draw moisture away from your foundation and create shifts. Don’t assume that only a giant oak is a threat. Crepe myrtles, ligustrums, and even tall shrubs can be culprits too.
Pro tip: Keep all plants at least 10-15 feet away from your foundation — and use root barriers when that’s not possible.
Myth #2: You Only Need One Root Barrier Between the Tree and Your House
Truth: Roots grow out in all directions — not just toward your home.
Many homeowners install a barrier between the tree and their foundation, thinking that’s enough. But tree roots are smart and persistent. If there’s an open path, they’ll find it.
Solution: Consider a semi-circular or full encasement root barrier if the tree is very close to your home.
Myth #3: Installing a Root Barrier Will Kill Your Tree
Truth: When installed correctly, root barriers redirect roots without harming the tree.
Proper installation cuts only a portion of the root system and encourages downward root growth, which is healthier for the tree long-term. If done poorly, sure — it can harm the tree. But a professional knows how to protect both your foundation and your landscape.
Good to know: Professional installers avoid cutting major structural roots, keeping the tree stable and thriving.
Myth #4: Root Barriers Are Only Necessary for Older Homes
Truth: New homes are just as vulnerable, especially during droughts or floods.
The age of your home doesn’t protect it from soil movement. In fact, new homes might be at higher risk if the soil hasn’t settled completely. Trees planted near new builds can impact moisture balance early on.
Quick fact: Houston’s frequent weather swings make all homes vulnerable to foundation damage.
Myth #5: Any Landscaping Company Can Install a Root Barrier
Truth: It takes more than a shovel and some plastic to do it right.
Installing a root barrier requires knowledge of soil behavior, tree biology, and local conditions. An inexperienced contractor might place the barrier too shallow or too close — making it useless.
Choose wisely: Hire a contractor with specific root barrier and foundation protection experience.
Use Case: Real-World Example from a Houston Homeowner
Meet Sarah from Katy, TX: Sarah had a beautiful live oak tree just 8 feet from her home. Over time, she noticed cracks forming along the corners of her house and doors sticking classic signs of foundation movement. A foundation inspection revealed that the tree’s roots were drawing moisture from beneath the slab.
Instead of removing the tree, Sarah opted for a professionally installed root barrier that extended 36 inches deep and formed a semi-circle between the oak and her house. Within a year, the cracks stopped widening, and soil moisture levels balanced out.
Result: Her foundation stabilized, she saved thousands in potential repair costs, and her beloved oak tree remained healthy.
Final Thoughts: Don’t Fall for the Myths
Root barriers can save your foundation, but only if done correctly. Don’t gamble on guesswork or popular myths. If you’re noticing cracks in your walls, sticking doors, or have large trees near your home, it’s time to talk to a foundation expert.
📞 Need help with a root barrier or foundation inspection in Houston? Call us today at 281-420-1739 for a free estimate.
Frequently Asked Questions (FAQs)
1. Can I install a root barrier myself?
While DIY is possible, incorrect installation can lead to poor results or tree damage. It’s best to consult a professional, especially near your home’s foundation.
2. Do root barriers work for all types of trees?
Root barriers can work for most trees if installed correctly, but the size, type, and root growth patterns of the tree will determine the best approach.
3. Will a root barrier fix existing foundation damage?
No, root barriers prevent future damage but won’t reverse existing foundation issues. You may need foundation repair in conjunction with a root barrier.
4. How much does it cost to install a root barrier in Houston?
Costs vary depending on the size and complexity of the installation, but average prices range from $800 to $2,500.
