How To Remove Green Algae From Fences & Wooden Garden Surfaces

Green algae on fences, sheds and decking is a common problem across the UK, especially during wetter months. Over time, wooden surfaces can begin looking green, slippery and weathered, making outdoor areas appear tired and neglected.

At Shark Cleaning Chemicals, our Decking, Fence & Shed Cleaner is designed to help restore outdoor wooden surfaces quickly and effectively.

Why Does Green Algae Grow On Fences?

Green algae thrives in:

  • Damp areas
  • Shaded gardens
  • Wet weather conditions
  • Poor airflow
  • North-facing fences and decking

Once it starts growing, it can quickly spread across wooden surfaces and become difficult to remove with water alone.

Common Areas Affected

Green algae commonly appears on:

  • Garden fences
  • Decking
  • Wooden sheds
  • Gates
  • Garden furniture
  • Timber sleepers

If left untreated, surfaces can become slippery and continue to darken over time.

Best Way To Remove Green Algae From Fences

Many people try:

  • Pressure washing alone
  • Bleach solutions
  • Scrubbing by hand

However, these methods often:

  • fail to fully remove the algae,
  • damage wooden surfaces,
  • or allow the algae to return quickly.

Using a dedicated outdoor wood cleaner helps break down algae and organic growth more effectively.

Shark Decking, Fence & Shed Cleaner

Shark Decking, Fence & Shed Cleaner is designed to:

  • Remove green algae
  • Clean outdoor wooden surfaces
  • Restore the appearance of fencing and decking
  • Help improve the overall look of outdoor spaces

Suitable for:

  • Decking
  • Fences
  • Wooden sheds
  • Timber garden features

Why Customers Choose Shark Cleaning Chemicals

✅ Powerful concentrated formulas
✅ Fast UK delivery
✅ Family-run UK business
✅ Trusted by customers across the UK

Tips For Best Results

For best results:

  • Apply during dry weather
  • Allow the product time to work
  • Avoid immediate rainfall after application
  • Follow dilution and application guidance

Looking To Restore Your Outdoor Spaces?

Browse our full outdoor cleaning range at:

Shark Cleaning Chemicals

Including:

  • Decking cleaners
  • Patio cleaners
  • Weed killers
  • Render cleaners
  • Natural stone cleaners
  • Black spot removers
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