Stormwater Drain Tree Root Issues & Solutions

Date Published: November 28, 2025, Last Updated on December 29, 2025 by Matthew Carter

Tree roots are one of the most common reasons stormwater drains become blocked in Australian homes. They slip into tiny cracks, grow inside the pipe, and slowly create a blockage that gets worse with time.

What starts as a slow drain can turn into flooding, pooling water, or repeated blockages that simple home remedies can’t fix.

In this guide, we’ll explain why tree roots enter drains, the warning signs to look for, what you can safely try at home, and the professional methods that provide long-term results.

Need a blocked drain plumber? Call Adept Plumbing & Gas on 07 3520 7195 for fast and reliable tree root removal and blocked drain cleaning.

Why Tree Roots Enter Your Drains

Tree roots don’t invade drains by accident, they actively seek out moisture, nutrients, and the perfect environment to grow. Unfortunately, your underground pipes provide exactly that.

Even the smallest crack or loose joint can attract roots, and once they get in, they rapidly spread through the pipe. Understanding why roots enter your drain helps explain why the problem often comes back and why quick surface fixes never last.

Roots tend to enter through:

Cracked or displaced stormwater pipes
Older terracotta lines
Unsealed pipe joints
Pipes affected by ground movement
Aging or poorly installed PVC

Signs That Tree Roots Are Inside Your Drains

Tree root intrusion usually builds up slowly, and the early signs can be easy to miss. Catching them early can save you from costly repairs.

Here are the most common symptoms homeowners notice when roots begin taking over their drains:

Slow-draining basins, showers, or toilets
Water pooling around stormwater grates
Gurgling noises when water drains
Repeated blockages in the same drain
Toilets taking longer to flush
Overflowing grates during rain

If the issue gets worse during storms, it’s likely caused by blocked stormwater rather than a simple household blockage.

Why It’s Important Not to Ignore Tree Root Problems

A minor blockage may seem manageable at first, but tree roots grow quickly and aggressively once inside a pipe. Leaving the issue untreated can create far bigger problems beneath the surface.

It can also increase your risk of flooding during heavy rain, especially around your foundations and outdoor drainage points.

Tree root blockages left untreated can lead to:

Cracks and fractures in the pipe
Repeated blockages every few months
Flooding around your home
Complete pipe collapse
Erosion around your property
Water entering your home during storms

These issues escalate quickly, especially during the storm season, and may lead to emergency blocked drains if the system overflows.

Can Homeowners Remove Tree Roots Themselves?

Short answer: no.

It’s natural to try a few DIY methods before calling a plumber, but tree roots present a very different type of blockage.

While home remedies can clear small surface debris, they cannot reach or remove roots growing deep inside the line. Trying the wrong DIY method might even push the blockage further down.

DIY can help with:

Clearing leaves from a grate
Removing hair or soap scum near the drain opening
Breaking down minor grease buildup

DIY cannot fix:

Roots deep inside the pipe
Structural pipe damage
Cracked or collapsed stormwater lines
Repeated blockages caused by roots
Pipes that have shifted underground

Chemical drain cleaners do not dissolve roots, and they can harm the pipe itself. When tree roots are the cause, only professional equipment will work.

How Plumbers Professionally Clear Tree Roots

Tree root removal requires specialised tools that target deep, stubborn blockages without damaging your pipes. Professional plumbers identify the root entry point, clear the blockage fully, and prevent it from returning.

1. CCTV Drain Camera Inspection

A small CCTV drain camera is inserted into the pipe to clearly identify what’s causing the blockage.

This allows the plumber to see exactly where tree roots have entered, how large the root mass is, and whether any part of the pipe is cracked, displaced, or collapsed.

With this information, the plumber can determine the most effective and safest removal method without guessing.

2. High-Pressure Hydro Jetting

High-pressure hydro jetting uses a specialised water jet to cut through and flush out tree roots, fine root hairs, dirt, silt, and hardened debris inside the pipe.

The strong water pressure restores full pipe flow and cleans the pipe walls, making it one of the most effective and efficient ways to remove root intrusions from stormwater and sewer lines.

3. Mechanical Root Cutting (If needed)

A rotating cutting head trims back thick or stubborn root masses to restore full pipe flow.

4. Pipe Relining: The Long-Term Fix

If a pipe is cracked or damaged, pipe relining is the most effective long-term solution. A new internal pipe lining seals the damaged section, preventing roots from entering again.

Relining works well for:

Stormwater drains
Terracotta pipe systems
Recurring root blockages
Pipes under driveways or concrete
Sewer lines

How Much Does Tree Root Removal Cost?

The cost of clearing blocked drains and tree roots depends on several factors:

How severe the root intrusion is
How deep the blockage sits
Whether the pipe is damaged
Whether relining is needed
How accessible the drain is
Whether the job is after-hours or emergency

If you want to know more about the blocked drain plumbing cost, you can contact us for a detailed quote.

Tree Root Drain Myths Homeowners Still Believe

There’s a lot of misinformation about tree root problems. Here are some common myths worth clearing up:

Myth 1: Chemicals can dissolve roots.
Chemicals damage pipes; they don’t remove roots.
Myth 2: Cutting roots once stops the problem permanently.
Roots grow back unless the pipe is repaired or relined.
Myth 3: PVC pipes can’t crack.
Ground movement and poor installation can still cause gaps.
Myth 4: DIY tools work the same as a plumber’s equipment.
Domestic tools can’t reach deep root masses and often make the problem worse.

How to Prevent Tree Root Blockages

While you can’t control how roots grow, you can reduce your risk of future issues with simple maintenance habits. These steps help protect your stormwater and sewer systems throughout the year:

Avoid planting large trees near drain lines
Keep drains and gutters clean before storm season
Trim roots around your property as needed
Book routine drain inspections for older homes
Consider pipe relining after major root intrusions

Need a Blocked Stormwater Drain Fixed Fast? Call Us 24/7

Adept Plumbing & Gas has extensive experience clearing tree root blockages across Logan, Brisbane Southside, and the Redlands. We identify the real cause of the blockage, use professional equipment, and provide long-lasting solutions that keep your drains working properly.

Tree root issues only get worse if left untreated. Call Adept Plumbing & Gas on 07 3520 7195 or submit an enquiry for fast, professional blocked drain cleaning and long-term solutions.

Understanding Stormwater Drain Tree Root Issues & Fixes