How roots get into a sewer line
Roots do not break sound pipe. They find the weak points, such as joints, hairline cracks and offsets, and they grow toward the warmth and moisture inside the line. A pipe that looks watertight to you can leak a little at a joint, and that leak draws roots in.
Once a root is inside, it thickens and branches. Over time the roots form a mat that traps paper and waste, and the line clogs. The clog can be cleared, but the roots remain at the joint, which is why the same clog tends to come back.
That pattern is what makes a camera so useful. It shows where the roots came in, how many places there are, and whether the pipe around them is still sound.
Root intrusion sewer pipe damage starts small: one hair-thin root finds a joint, and over time roots in sewer lateral runs grow into a mat that catches paper and slows the flow. Cutting roots out of sewer line sections clears the flow, but it does not seal the joint they came through.
Signs of tree roots in the sewer line in Asheboro homes
Most root problems announce themselves slowly. You may notice drains that run slow, a toilet that gurgles when another fixture drains, or a main-line clog that returns every few months after being cleared. Sometimes a technician pulls out roots on the cutter during drain cleaning, and that is a clear sign.
Outside, look for a sewage smell near the line, or a soggy, sunken or unusually green strip of lawn along the sewer path. Any of these is a reason to look at the pipe, not just clear it again. A sewer backup is the point at which a slow root problem becomes an urgent one.
Roots are not going to leave on their own
Describe the symptoms and the pro will explain what a root check looks like.
Call before it backs up againCutting roots out of a sewer line: what it does and what it does not do
Clearing roots usually means a cutting head on a machine, or hydro-jetting that uses high-pressure water to scour the pipe wall. Both can open the line and restore flow. Neither stops roots from returning, because the opening at the joint is still there and the tree is still growing.
| Option | What it does | What it does not do |
|---|---|---|
| Cutting roots | Clears roots from the line so water flows again | Does not seal the joint or stop regrowth |
| Hydro-jetting | Scours the pipe wall and washes debris out | Does not fix cracks, offsets or sags |
| Pipe lining | Seals joints and cracks inside the old pipe | Does not fix a collapsed pipe or a deep sag |
| Replacing a section | Removes the damaged pipe and puts in new | Does not stop roots from seeking other weak points |
Root cutting can be the right first step, particularly when the pipe is sound. It is not a permanent fix on a pipe with open joints, and the pro should say so.
When root intrusion in a sewer pipe means the pipe needs repair
If the camera shows roots entering at many joints, or cracks and offsets along the line, cutting alone buys time and little else. In that case the pipe itself is the problem. Options include lining, spot repair of the worst sections, or replacement of the line, and the camera decides which fits.
Lining can seal joints against roots when the pipe is continuous, and a short open trench can fix one bad section. Our page on clay sewer pipe replacement covers older pipe that is past repair. No option can promise that roots never come back, since trees keep growing, but sealing or replacing the damaged section removes the easy way in.
Trees near the line on Asheboro lots
Asheboro's older streets are lined with big mature trees, and many of them stand close to a sewer line that has been in the ground for decades. Clay and cast iron laterals, common in homes built before about 1960, have many joints, and each joint is a place a root can enter.
Newer neighborhoods have newer pipe. The 1990s golf and lake subdivisions use PVC, which has fewer joints and a tighter seal, though roots can still reach a damaged or poorly fitted joint. See sewer line repair in Pinewood and sewer line repair in Oak Hollow West for how it looks in those neighborhoods.
Red clay soil holds moisture well, and roots follow moisture. Many outer and golf-area homes use septic tanks, which are outside what this service covers, so tell the pro which you have.
Keeping roots out after the repair
No repair guarantees a root-free line, and any pro who promises one is overselling. What a repair can do is close the openings roots use. After lining or replacement, the camera footage becomes a before-and-after record of the line.
A cleanout makes later checks easier, and our page on sewer cleanout installation explains how one is added. Beyond that, think about where new trees go, because planting well away from the line gives roots less reason to head toward it. You do not have to remove a healthy tree to protect the pipe, and the pro can say whether yours is part of the problem.