Fences play a huge role in how a property looks — yet they’re often one of the most neglected exterior surfaces. Over time, fences collect mould, algae, dirt, oxidation, traffic grime, and weather staining, leaving them looking tired, discoloured, and aged.
Whether it’s a timber boundary fence, painted paling fence, Colorsteel fence, or composite fencing, professional fence cleaning services can restore appearance, extend lifespan, and prevent costly replacements.
In this 2026 guide, we’ll explain:
- Why fences deteriorate so quickly
- Why DIY cleaning often causes damage
- How professional fence cleaning works
- Which fence materials need soft washing
- How to protect fences after cleaning
Why Fences Get Dirty Faster Than Other Surfaces
Fences are constantly exposed to:
- Rain and moisture
- Shade and poor airflow
- Soil splashback
- Organic growth (mould, moss, algae)
- UV exposure
- Road dust and pollution
Unlike roofs or driveways, fences are often vertical and shaded, which makes them prime surfaces for mould and algae growth — especially in damp or coastal environments.
Once contaminants embed into the surface, normal hosing or scrubbing won’t remove them effectively.
Common Fence Problems We See
Professional fence cleaning is most often needed to address:
- Green algae staining
- Black mould streaks
- Greyed timber
- Oxidation on painted or metal fences
- Dirt and traffic grime
- Water runoff staining
- Weathered and chalky surfaces
Left untreated, these issues don’t just look bad — they actively shorten the life of the fence.
Why High-Pressure Fence Cleaning Is a Bad Idea
One of the biggest mistakes property owners make is using high-pressure water blasting on fences.
This can:
- Strip paint or coatings
- Damage timber fibres
- Leave visible pressure marks
- Cause splintering
- Force water deep into timber
- Accelerate rot and decay
Fences require a controlled, low-pressure cleaning approach, not brute force.
How Professional Fence Cleaning Works
At Metro Water Blasting, fence cleaning is carried out using soft washing techniques, matched to the fence material and condition.
Step 1: Fence Assessment
We assess:
- Fence material (timber, painted, Colorsteel, composite)
- Level of staining
- Age and condition
- Surrounding plants and surfaces
This determines the safest and most effective cleaning method.
Step 2: Soft Wash Treatment
A professional soft wash solution is applied to:
- Kill mould, algae, and organic growth
- Break down dirt and grime
- Lift staining without surface damage
This process cleans at a chemical level, not just visually.
Step 3: Low-Pressure Rinse
The fence is gently rinsed using low pressure, removing contaminants while protecting the surface.
No splintering. No stripping. No damage.
Step 4: Optional Protective Treatments
Depending on the fence type, additional services may include:
- Timber brightening
- Pre-paint preparation
- Mould-inhibiting treatments
- Advice on staining or sealing
Fence Types We Clean
Professional fence cleaning is suitable for:
Timber Fences
- Paling fences
- Privacy fences
- Boundary fences
- Decorative timber fencing
Soft washing restores colour and prepares timber for staining or painting.
Painted Fences
- Residential boundary fencing
- Feature fences
- Rental property fencing
Gentle cleaning removes mould without stripping paint.
Colorsteel & Metal Fences
- Perimeter fencing
- Pool fencing
- Commercial fencing
Soft washing removes oxidation and grime without scratching or dulling the finish.
Composite & PVC Fences
- Modern residential fencing
- Low-maintenance fencing systems
Specialised cleaning removes organic staining while preserving surface integrity.
Benefits of Professional Fence Cleaning
Fence cleaning delivers more than just visual improvement:
- Restores original appearance
- Prevents rot and decay
- Extends fence lifespan
- Improves street appeal
- Prepares surfaces for painting or staining
- Reduces long-term maintenance costs
In many cases, professional cleaning adds years of life to a fence.
When Should You Clean Your Fence?
Fence cleaning is recommended:
- Every 12–24 months
- Before selling or renting a property
- Before painting or staining
- When mould or algae is visible
- As part of a full exterior clean
It’s often combined with house washing, deck cleaning, or concrete cleaning for maximum impact.
DIY vs Professional Fence Cleaning
DIY fence cleaning often results in:
- Patchy results
- Damage from pressure
- Short-lived cleanliness
- Regrowth within months
Professional services provide:
- Correct chemical balance
- Even, uniform results
- Longer-lasting cleanliness
- Protection of surrounding surfaces and plants
Why Fence Cleaning Is a Smart Investment in 2026
Fence replacement is expensive. Cleaning is not.
Professional fence cleaning:
- Improves property value
- Enhances first impressions
- Reduces future repair costs
- Protects your investment
In 2026, preventative maintenance beats replacement every time.
Ready to Restore Your Fence?
If your fence looks tired, stained, or weathered, professional fence cleaning can bring it back to life — safely and effectively.
Request a no-obligation quote today and let our team assess the best solution for your fencing.