How to Deal with Tree Roots in Pipes and Stormwater Drains

Tree roots in pipes are one of the most common yet overlooked causes of plumbing and stormwater drainage issues. Once roots detect moisture escaping from small cracks or joints in your pipes, they can infiltrate the system and continue growing inside. Over time, this growth can restrict water flow, cause blockages, or even damage the pipe structure.

These root intrusions can affect a wide range of systems, including stormwater drains, toilet pipes, and main sewer lines. Many homeowners and property managers only discover the problem once symptoms appear, such as slow drainage, gurgling sounds, or surface water pooling during rain.

Understanding how tree roots get into pipes, and what you can do to remove and prevent them, is key to protecting your drainage system from costly repairs.

How Do Tree Roots Get Into Pipes?

Tree roots are naturally drawn to moisture. When underground pipes develop cracks, loose joints, or weak seals, they begin to release small amounts of water into the surrounding soil. This moisture attracts nearby tree roots, which will grow toward the source in search of nutrients.

Once a root reaches the pipe, it can push through even the smallest opening. Over time, the root continues to grow inside the pipe, expanding with each season and eventually causing blockages, water flow restrictions, or structural damage.

Certain conditions make root intrusion more likely, including:

• Older clay or earthenware pipes that are more prone to cracking and joint movement
• Stormwater drains that handle large volumes of runoff and often pass close to tree roots
• Pipes laid near large trees or invasive species with deep roots

Even newly planted trees can pose a risk over time if their roots grow near vulnerable sections of your plumbing system.

Signs You Might Have a Root Blockage

Tree roots inside your pipes often go unnoticed until the symptoms start affecting your day-to-day plumbing. The earlier you spot the warning signs, the easier it is to avoid major repairs or flooding.

Here are some common indicators that roots may be blocking your stormwater or sewer pipes:

• Gurgling sounds coming from toilets, sinks, or drains
• Slow drainage, especially after rain or when multiple fixtures are used
• Recurring blockages that keep coming back even after plunging or cleaning
• Unpleasant odours near drains or wet areas
• Soggy patches or unusually green sections of lawn, especially near underground pipes
• Overflowing stormwater grates during heavy rain

Quick Homeowner Checklist

• Water backs up in sinks or showers after using the toilet
• Gurgling noises from drains, even when not in use
• Puddles or damp areas forming outside after rain
• Persistent smells from drains or grates

If even one of these apply to you, it could point to a root intrusion. This is especially true if your property has older plumbing or large trees nearby.

Removal & Repair

How to Remove Tree Roots in Pipes Safely and Effectively

Once tree roots find their way into your pipes, removing them properly is essential. While some short-term treatments may provide temporary relief, the most effective and lasting solutions usually require professional tools and expertise.

DIY Caution: What Sometimes Helps and What Doesn’t

Some homeowners try DIY methods first, but it’s important to know their limitations.

• Boiling water may help loosen minor build-up but will not kill or remove roots.

• Chemical root killers, such as Root Rid, can temporarily stop root growth in small intrusions. However, repeated use may damage pipes or nearby plants and should be used cautiously.

• Avoid home remedies like baking soda and vinegar. These methods are commonly shared online but have been debunked and are not effective at unblocking drains.

Why Professional Tools Work Better

Most effective root removal methods require tools that are not available to the average homeowner. At Drainpro, we use industry-grade equipment that clears roots quickly and safely:

• CCTV drain inspection allows us to see exactly where roots have entered the pipe and how far they’ve grown.

• Hydro jetting blasts high-pressure water through the line to cut through and flush out roots and debris.

• Mechanical root cutters trim and dislodge thicker roots that can’t be removed with water pressure alone.

These methods are safe for pipes, highly effective, and can be completed with minimal disruption.

Permanent Solutions by the Experts

To keep roots from returning, long-term solutions are often necessary:

• Pipe relining seals the inside of the pipe with a durable lining that blocks future root entry, all without digging.

• Targeted excavation and replacement may be needed when pipes are badly damaged or collapsed.

• Ongoing maintenance is ideal for high-risk properties. Drainpro can schedule regular inspections and clearing to prevent future blockages.

How to Prevent Tree Roots in Pipes Long-Term

Removing tree roots is only part of the solution. Without proper prevention, they can grow back and cause the same problems again. Taking proactive steps can help protect your pipes and reduce the risk of future blockages.

Install Root Barriers

If you are landscaping or planting near underground plumbing, root barriers can be installed to redirect growth away from pipes. These physical barriers are especially useful near trees known for aggressive root systems.

Book Annual Inspections

Regular inspections using CCTV technology help detect early signs of root intrusion before they lead to major issues. An annual check-up can identify vulnerable areas and allow for early treatment.

Remove or Relocate Problem Trees

Trees with large, shallow, or fast-growing root systems pose a higher risk. In some cases, removing or relocating these trees may be the most effective long-term solution.

Upgrade Ageing Pipes

Older pipes made from clay or concrete are more prone to cracking and joint failure. Replacing these with PVC or HDPE pipes offers better durability and resistance to root intrusion.

Taking preventive action now can save you from costly repairs and water damage later.

When to Call Drainpro

If you suspect tree roots are affecting your plumbing or stormwater system, it’s time to call in the experts. At Drainpro, we specialise in detecting and resolving root-related blockages using advanced tools and proven methods.

Drainpro is equipped with:

• CCTV drain inspection cameras to locate and assess root intrusions
• High pressure water jet technology to clear roots and debris quickly and safely
• Mechanical root cutting tools for more severe blockages
• No-dig pipe relining that repairs and protects pipes without excavation
• Stormwater drain repair services tailored for Melbourne properties

We understand the challenges that come with older infrastructure, invasive tree species, and Melbourne’s variable weather. Whether you’re dealing with a stubborn blockage or want to prevent future issues, we provide expert advice and lasting solutions.

If you’re managing a property or maintaining your own home, Drainpro can help you protect your drains and avoid repeat problems with professional root removal and prevention services.

Get Expert Help from Drainpro

Need help with tree roots in your plumbing or stormwater system? Book a fast, professional inspection with Drainpro today. Our experienced team will identify the issue, explain your options clearly, and provide effective, long-term solutions tailored to your property. We’re ready to help you fix the problem before it gets worse. Give us a call on 1300 303 247 or contact us online to schedule your inspection.

FAQ

How do I know if tree roots are blocking my stormwater drain?

Common signs include gurgling drains, slow water flow, and water pooling outside after rain. A professional CCTV inspection is the most reliable way to confirm if roots are the cause.

Can tree roots grow back after removal?

Yes. If the pipe is not repaired or relined, roots can re-enter through the same cracks or joints. That’s why long-term solutions like pipe relining or regular maintenance are important.

Is pipe relining better than replacing the pipe?

In many cases, yes. Pipe relining is less invasive, faster, and more cost-effective than full pipe replacement. It also creates a strong, seamless barrier that prevents future root intrusion.

Does home insurance cover tree root damage?

Coverage varies between policies. Some insurers may cover the damage caused by blocked drains but not the cost of removing the roots themselves. It’s best to check with your provider.