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Can Tree Roots Damage Foundations? What Melbourne Homeowners Need to Know

Tree roots and house foundations don’t always get along. In fact, concerns about root-related damage are one of the most common reasons Melbourne homeowners contact tree removal services. The good news? Not all trees are a threat. But some are, and if left unchecked, they can cause cracking, shifting or long-term structural issues.

This article explains what to watch for, what action to take, and when it’s time to speak to a certified arborist.

How Do Tree Roots Affect Foundations?

Roots follow water. If the soil near your foundation holds moisture, roots may grow towards it. Over time, larger roots can push against concrete footings or displace the soil underneath, leading to uneven settling or cracks.

Most roots don’t penetrate solid concrete. But they don’t need to. Even shallow roots can interfere with plumbing, drainage, and the stability of slab foundations.

  • Cracks in walls or floors
  • Doors or windows sticking
  • Uneven flooring
  • Sinking or cracked driveways

If you notice these, it may not be the tree’s fault – but it’s worth investigating.

Which Trees Cause the Most Problems?

Fast-growing trees with aggressive root systems are usually the biggest culprits. In Melbourne, species like willows, poplars, and large eucalypts are common offenders. If these are planted too close to your home, they can pose a risk.

Even ornamental trees can cause trouble if they’re planted too close to pipes or poorly constructed footings. The safest move is to keep medium and large trees at least 5 to 10 metres away from structures.

A licensed arborist in Melbourne can identify root risk factors based on the species, soil type, and location.

What Should I Do If I Suspect Tree Root Damage?

First, don’t panic. Tree root damage is often slow and manageable if caught early.

Get a site inspection from a certified arborist. They can assess whether the tree is contributing to foundation problems and recommend the best solution.

Options may include:

You might also need to consult a structural engineer if damage is already visible.

Do I Need a Permit to Remove a Tree in Melbourne?

In many suburbs, yes. Councils in areas like Blackburn South or Ashwood often require permits to remove mature trees, especially native or protected species.

Before booking a tree cutting service, ask your council or request an arborist report for council.

Should I Remove the Tree Entirely?

It depends. If the tree is healthy or heritage-protected, root pruning or trenching might be enough.

But if the tree is unstable, diseased, or posing a threat to your home, removal may be the safest solution. Dawson Tree Services offers affordable tree removal in Melbourne with minimal disruption to your home.

Can I Remove Roots Without Removing the Tree?

In some cases, yes – but it must be done carefully. Cutting roots can destabilise a tree and make it more likely to fall in high winds or storms.

If you’re planning building works or landscaping near a tree, speak with a local arborist first.

Final Thoughts

Tree roots and house foundations can coexist, but not always peacefully. If you’ve noticed signs of movement or damage, it’s time to investigate.

Get expert advice, assess the risks, and act early to protect your home and your property value.

Dawson Tree Services provides trusted tree care across Melbourne’s eastern suburbs. From root inspections to emergency removal, they’ve got it covered.

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