Asbestos was once a popular building material across Australia due to its durability, fire resistance, and affordability. Many homes built before the late 1980s still have asbestos cement fencing, especially in older suburbs. While asbestos fences can last for decades, they eventually deteriorate. Once that happens, they may pose a health risk to you, your family, and your neighbours.
Knowing the early warning signs of asbestos fence deterioration can help you take action before the material becomes hazardous. In this blog, we’ll explore the key signs that indicate it may be time to consider asbestos fence removal.
1. Visible Cracks and Fractures
One of the earliest and most obvious signs that your asbestos fence may need removal is visible cracking.
Over time, weather exposure, ground movement, and accidental impacts can cause asbestos cement sheets to crack. Even small fractures can be concerning because damaged asbestos materials are more likely to release fibres into the air.
Signs to look for include:
- Hairline cracks across fence panels
- Large fractures running vertically or horizontally
- Pieces breaking off around the edges
- Panels separating from the fence structure
If you notice cracks that are growing larger or spreading, it’s wise to have the fence inspected by professionals.
2. Flaking, Chipping, or Surface Damage
Asbestos cement fences typically have a smooth surface when they are intact. When the material begins to flake, chip, or peel, it may indicate that the cement binding the asbestos fibres is deteriorating.
Common signs include:
- Powdery residue on the fence surface
- Small flakes falling from the panels
- Rough or uneven texture developing over time
- Edges becoming brittle
This kind of damage suggests the material is becoming friable, meaning it can easily crumble and release asbestos fibres.
3. Age of the Fence
Even if your fence appears intact, age alone can be a strong indicator that removal should be considered.
Most asbestos fences installed in Australia are now 30 to 60 years old. Over such a long period, exposure to:
- Rain
- Sunlight (UV radiation)
- Wind
- Temperature changes
can gradually weaken the cement matrix holding the asbestos fibres together.
If your fence was installed before the 1990s, it’s worth arranging a professional inspection to assess its current condition.
4. Warping or Leaning Fence Panels
Another sign that asbestos fencing may be deteriorating is warping or leaning panels.
Structural issues can occur when the fence posts shift or when the panels themselves begin to weaken. This can create gaps, instability, or pressure points that lead to cracking.
Watch for signs such as:
- Panels bowing outward
- Fence sections leaning to one side
- Loose or unstable sheets
- Panels moving when touched
Warped panels are more likely to break during strong winds or storms, increasing the risk of asbestos fibre release.
5. Discoloration or Water Damage
Changes in colour or texture can signal that moisture has begun to penetrate the asbestos cement.
Common indicators include:
- Dark staining on fence panels
- Mould or mildew growth
- Water streaks running down the surface
- Patches that appear softer than the surrounding area
Moisture can slowly degrade the cement component of the fence, weakening its ability to contain asbestos fibres.
6. Damage from Renovations or Landscaping
Home improvement projects can sometimes accidentally damage asbestos fencing.
Activities that may cause problems include:
- Drilling into fence panels
- Pressure washing
- Installing fixtures or hooks
- Tree root growth near the fence line
- Heavy equipment impacting the fence
If your fence has been cut, drilled, or disturbed, it may require professional assessment or removal to ensure it remains safe.
7. Storm or Impact Damage
Severe weather events are a common cause of asbestos fence damage.
High winds, fallen tree branches, or flying debris can crack or break fence panels. Even minor impact damage can compromise the integrity of asbestos cement.
After major storms, inspect your fence for:
- Broken panels
- Loose fragments
- Pieces lying on the ground
- Newly visible cracks
Prompt action can prevent further deterioration and potential exposure.
8. Neighbour Concerns or Shared Fence Issues
In many Australian properties, asbestos fences are shared between neighbouring homes.
If your neighbour raises concerns about the condition of the fence, it’s important to take the issue seriously. A damaged fence could affect multiple households.
In some cases, neighbours may even propose joint fence replacement, which can reduce costs and ensure the fence is safely removed.
9. Increased Property Maintenance Costs
As asbestos fences age, they may require more frequent repairs to maintain stability. However, repairing asbestos materials is often not recommended, as cutting or drilling can release fibres.
If you find yourself repeatedly fixing or reinforcing sections of the fence, it may be more practical and safer to consider complete removal and replacement.
Modern fencing options such as:
- Colorbond steel
- Timber fencing
- Composite panels
- PVC fencing
offer longer lifespans and require less maintenance.
10. Safety Concerns for Children and Pets
If children or pets frequently play near the fence, deteriorating asbestos materials become an even bigger concern.
Loose fragments or crumbling panels could potentially release fibres if disturbed. Proactively replacing an ageing asbestos fence can provide peace of mind for families.
Why Professional Asbestos Fence Removal Matters
Removing asbestos materials is not a DIY job. In Australia, strict regulations govern the safe handling and disposal of asbestos.
Professional asbestos removal services ensure:
- Proper safety procedures are followed
- Fibres are contained and controlled
- Waste is transported to licensed disposal facilities
- The surrounding area is safely cleaned
Attempting to remove asbestos without the proper training and equipment can expose you and others to serious health risks.
Final Thoughts
Asbestos fences can remain safe when they are intact and undisturbed, but once deterioration begins, the risk increases significantly. Paying attention to early warning signs such as cracks, flaking, structural damage, and ageing panels can help you address the issue before it becomes hazardous.
If you suspect your fence may be deteriorating, the safest step is to consult a licensed asbestos removal professional for an inspection and advice on the best course of action.
Replacing an ageing asbestos fence not only improves safety but can also enhance the appearance, durability, and value of your property.