A cracked wall, a slow drain or a lifted slab makes people look at the nearest tree. Sometimes the tree is to blame and often it is not. On the Panhandle, where dry spells are common, the question comes up a lot. This guide explains what roots really do, how to find out whether a tree is involved and what to do before anyone starts cutting.
The short version
Roots are generally not strong enough to crush a foundation or a sewer pipe. When trees affect buildings, it is mostly because roots grow under a shallow slab and lift it, or because they draw water out of the soil, which makes clay shrink. Clay can also shrink by itself in dry weather, so a crack near a tree does not prove the tree caused it. A nature agency in Montreal makes the same point: trees usually do not cause foundation problems, and long summer dry spells that dehydrate clay are the main culprit.
Sewer and drain lines
Pipes are where roots most often cause real trouble. A University of Georgia horticulturist reports that the damage he usually sees comes from roots that grow along a pipe and thicken, pressing on joints and causing leaks, and that roots can enter a pipe where it leaks. University of Missouri Extension calls silver maple notorious for plugging sewer lines and lifting sidewalks. Slow drains, gurgling and repeat clogs are warning signs, and a plumber can run a camera through the line.
How far roots reach
Most roots grow in the top foot or so of soil and spread well past the edge of the crown. Some forestry engineers say certain species can reach two or three times the tree’s height. A tree that looks far from the house can still share soil with the foundation, the sewer lateral and the driveway.
Slabs, sidewalks and driveways
Shallow-rooted, fast-growing trees are the usual cause of lifted pavement. Surface roots thicken a little each year and push the slab up. Fixes include grinding a raised edge, adding a ramp, re-pouring the pavement so it curves around the root and, sometimes, removing the tree. Cutting a large root to fix a slab can hurt or destabilize the tree, so talk to an arborist first.
Get a diagnosis before cutting
- Foundation cracks: ask a structural engineer or foundation specialist what is behind them, including soil shrinking and swelling.
- Slow drains: have a plumber camera the line and confirm roots are in it.
- The tree: ask a certified or consulting arborist about its species, size and distance.
Removing a healthy tree that was not the cause costs you shade and value and may not fix anything.
Cutting roots without killing the tree
Do not cut large roots close to the trunk. They anchor the tree and supply most of its water. If you have to cut roots, an arborist can tell you how far out, how many and how to protect the tree afterward. Call 811 before you dig, since roots and utility lines share the ground. See tree trimming in Amarillo TX and hazardous tree assessment in Amarillo TX.
Prevention
- Plant trees well away from the house, the sewer lateral and pavement, based on their mature size.
- Water deeply out at the drip line, so roots are not drawn toward the house.
- Use root barriers when planting near pavement.
- Avoid shallow, aggressive rooters near buildings and pipes.
Roots and wind
Roots also hold a tree up. On the Panhandle, where Xcel Energy reported gusts of up to 70 mph on February 17, 2026, a tree with damaged or decayed roots can fall in wind even when the crown looks fine. Soil lifted at the base is a warning sign. See wind-damaged trees in Amarillo TX and drought-stressed trees in Amarillo TX.
Watering and root behavior
Trees that get enough water at the drip line have less reason to push roots toward a leaking pipe or a damp spot near the house. In dry Panhandle summers, deep watering at a distance from the foundation helps both the tree and the building. See drought-stressed trees in Amarillo TX. If you notice a patch of unusually green, wet ground, have a plumber check for a leak, since roots follow water.
Common questions about tree roots
How far from the house should a tree be?
There is no single number. It depends on species, mature size and soil. Large trees need far more room than small ones, and an arborist can advise for your lot.
My foundation is cracking. Should I cut the tree?
Not yet. Have an engineer or foundation specialist find the cause first. The soil may be shrinking in dry weather regardless of the tree.
Can I install a root barrier near an old tree?
Barriers work best at planting time. Digging one in next to an established tree cuts roots, so ask an arborist first.
Need a tree looked at in Amarillo TX?
If you want a professional opinion, request a free tree service quote in Amarillo TX. Describe the tree, where it stands and what worries you, and send photos if you can. Print the tree check checklist for Amarillo TX homeowners to walk your property first, or read the tree service FAQ for Amarillo TX.
