Garden Decking Preservers

Protect garden decking from rot, mildew and parasites with an easy-to-apply decking preserver. Available in both clear and coloured formulations, these decking preservative treatments can be used to both colour and protect most types of softwood and hardwood decking. To further extend the life of wooden decking, we recommend the application of a Decking Oil, after the wood preservative has fully dried. To keep decked areas in tip top condition and free from mould algae and other biological growth, use a Decking Cleaner. from time to time.

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A solvent-based wood preservative that offers microporous protection against wood rot, fungi, decay and mould. Available in clear and coloured formulations suitable for wooden decking and other garden wood.
  • 2-3 coats
  • Coverage: 6m²/L
  • 12 hrs drying time
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Available in 1L, 5L
A complete, solvent-based wood preservative from Ronseal. Can be used on new, bare wood or recently stripped decking to prevent rot, decay and woodworm prior to applying a decking treatment.
  • 3 coats
  • Coverage: 8m²/L
  • 24 hrs drying time
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Available in 2.5L, 5L
An all purpose, solvent-based wood preservative. Wax-free, low odour formulation protects against wood rot, fungi, decay and mould. Ideal for garden decking prior to applying a decking oil or stain.
  • 2-3 coats
  • Coverage: 6m²/L
  • 12 hrs drying time
More Info
Available in 1L, 5L
A solvent-based wood preserver that actively protects interior and exterior wood against rot, decay and blue staining mould. Ideal as a pre-treatment on new, bare wood or stripped decking prior to applying a decking stain or oil.
  • 2 coats
  • Coverage: 9m²/L
  • 24 hrs drying time
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Available in 1L, 2.5L, 5L
Quickly eliminate and protect against woodworm and wood boring insects. Ideal for all interior and exterior wood projects, including decking joists and boards.
  • 2 coats
  • Coverage: 5m²/L
  • 48 hrs drying time
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Available in 250ml, 1L, 2.5L, 5L
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Protects sawn ends of decking boards by sealing and protecting them from the elements. Helps to prevent wood swelling and shrinkage.
  • 2 coats
  • Coverage: 5m²/L
  • 4 hrs drying time
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Available in 375ml
A water-based end grain preservative based on triazole technology. Protects against water ingress, fungi and insect attack. Ideal for protecting and preserving the sawn ends of garden decking.
  • 1-2 coats
  • Coverage: 7m²/L
  • 24 hrs drying time
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Available in 1L
A clear, multi-purpose, solvent-based wood preservative that provides protection against wet rot, dry rot, woodworm and insect attack. Ideal for a variety of projects including garden decking.
  • 3 coats
  • Coverage: 6m²/L
  • 24 hrs drying time
More Info
Available in 2.5L, 5L
Waterproofs and protects cross cut end grains against water damage which can lead to rot and decay. Rainproof in 90 minutes.
  • 2 coats
  • Coverage: 8m²/L
  • 24 hrs drying time
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Available in 750ml
An effective, water-based woodworm killer that penetrates deep into the wood to kill wood boring insects, their larvae and eggs. Suitable for a wide range of interior and exterior projects including decking joists and boards.
  • 3 coats
  • Coverage: 10m²/L
  • 2 hrs drying time
More Info
Available in 1L, 5L
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