Tree Roots in Sewer Lines: Signs, Causes, and Long-Term Solutions
Large trees add beauty and value to your property—but underground, their roots can create serious plumbing problems.
Tree roots are one of the most common causes of clogged and damaged sewer lines throughout the Des Moines metro, especially in older neighborhoods with mature trees and aging sewer pipes.
If left untreated, root intrusion can lead to recurring backups, pipe damage, and even complete sewer line failure.
The good news? Identifying the problem early often gives homeowners more options before major repairs become necessary.
Why Do Tree Roots Grow Into Sewer Lines?
Tree roots don't "seek out sewer pipes," but they do naturally seek moisture and nutrients.
As sewer pipes age, small cracks, loose joints, or tiny openings can develop. Those openings allow moisture to escape into the surrounding soil, attracting nearby roots.
Once a root finds that opening, it continues growing inside the pipe.
Over time, the root system expands and begins trapping:
- Toilet paper
- Grease
- Soap residue
- Food particles
- Other debris
Eventually, wastewater can no longer flow freely through the pipe.
Signs You May Have Tree Roots in Your Sewer Line
Some of the most common warning signs include:
- Recurring Drain Clogs
If your drains keep clogging despite previous cleanings, tree roots may be restricting the sewer line.
Multiple Slow Drains
When several drains throughout the house begin slowing at the same time, the blockage may be located in the main sewer line.
Gurgling Toilets
Roots can partially block wastewater flow and trap air inside the plumbing system, causing toilets to bubble or gurgle.
Basement Floor Drain Backups
Many sewer backups first appear at the basement floor drain because it's one of the home's lowest plumbing fixtures.
Sewer Odors
Standing wastewater caused by root intrusion can create unpleasant sewer smells inside or outside your home.
Wet Areas in the Yard
If roots have damaged the sewer pipe, wastewater may begin leaking into the surrounding soil, creating unusually green grass or soft, wet areas.
Which Homes Are Most at Risk?
Tree root intrusion is more common in homes that have:
- Mature trees near the sewer line
- Older clay sewer pipes
- Aging cast iron piping
- Orangeburg sewer lines
- Previous sewer repairs
- Homes built several decades ago
Many older neighborhoods throughout Central Iowa have a combination of mature landscaping and aging underground utilities, making routine attention to sewer lines especially important.
How Do You Know If Tree Roots Are the Problem?
The only way to know for certain is to inspect the sewer line.
A sewer camera inspection allows us to see exactly what's happening inside the pipe.
Instead of guessing, we can determine:
Whether roots are present
How extensive the intrusion is
Whether the pipe has been damaged
Whether cleaning, repair, or replacement is the best solution
This helps homeowners make informed decisions based on the actual condition of their sewer line.
Can Tree Roots Be Removed?
Yes—but the right solution depends on the condition of the pipe.
Drain Snaking
For some root intrusions, specialized cutting blades attached to a drain snake can cut through roots and restore flow.
Hydro jetting can remove smaller roots and flush away loose debris after mechanical cutting. It also helps clean grease and buildup from the pipe walls.
If roots entered through a damaged joint or isolated crack, repairing that section of pipe may prevent future intrusion.
If the sewer line has multiple areas of damage, repeated root intrusion, or deteriorating pipe material, replacing the line may provide the most reliable long-term solution.
Removing the Roots Doesn't Always Fix the Problem
One of the biggest misconceptions is that cutting the roots permanently solves the issue.
While removing roots restores flow, the opening that allowed the roots to enter often remains.
Unless the damaged section of pipe is repaired or replaced, roots may eventually return.
That's why we believe it's important to identify why the roots entered the pipe—not simply remove the blockage.
How to Help Prevent Tree Root Problems
Although tree roots can't always be prevented, homeowners can reduce their risk by:
Addressing recurring clogs promptly.
Avoiding repeated "temporary fixes" without identifying the cause.
Scheduling a sewer camera inspection if root intrusion has occurred before.
Monitoring older sewer lines, especially in established neighborhoods.
Early detection often provides more repair options and may help prevent emergency sewer backups.
Frequently Asked Questions
Will removing a tree solve the problem?
Not necessarily. Even after a tree is removed, existing roots may remain underground for years, and damaged sewer pipes may still require repair.
Can hydro jetting permanently remove tree roots?
Hydro jetting can be an effective cleaning method in the right situation, but it doesn't repair the opening where roots entered the pipe. The best long-term solution depends on the condition of the sewer line.
Does every sewer line with roots need to be replaced?
No. Many sewer lines can be cleaned and continue to provide years of reliable service. Others may benefit from a localized repair. Replacement is typically recommended only when the pipe has significant structural damage or widespread deterioration.
Trust Beebe Drain & Sewer Co.
At Beebe Drain & Sewer Co., we help homeowners throughout the Des Moines metro identify the cause of recurring sewer problems and recommend long-term solutions—not temporary fixes.
Whether your sewer line needs drain snaking, hydro jetting, a sewer camera inspection, a targeted repair, or a complete replacement, we'll explain what we find and help you choose the option that's right for your home.
Because our goal isn't just to remove the roots—it's to solve the problem that allowed them to get there in the first place.
Beebe Drain & Sewer Co. proudly serves homeowners in Des Moines, West Des Moines, Urbandale, Grimes, Johnston, Clive, Waukee, Ankeny, Altoona, Pleasant Hill, Norwalk, Indianola, Ames, and surrounding Central Iowa communities.
