Wood Preserver Treatments

Durable Protection for Exterior and Interior Timber

Wood preservative treatments are essential for protecting timber against rot, fungi, mould, woodworm, and insect attack. By deeply penetrating the wood fibres, these treatments create a protective barrier that helps prolong the life of wooden structures exposed to harsh environmental conditions or high-moisture areas.

Typically used on garden furniture, sheds and fencing, wood preservatives come in either solvent or water-based formulas. Each type offers different benefits, with solvent-based preservatives, such as Barrettine Premier Wood Preserver providing deep, long-lasting protection, while water-based alternatives like Protek Wood Preserver ++ offer a low-odour, eco-friendlier option suitable for residential use.

Preservative treatments, including Ronseal Total Wood Preservative, often contain biocides and fungicides that actively prevent decay and deter wood-boring insects. Some products also include water-repellent agents and UV filters, offering additional surface protection against rain and sunlight. Coloured preservatives, in particular Cuprinol Ultimate Garden Wood Preserver, provide a decorative finish while protecting, whereas clear versions maintain the natural look of the wood.

Application is straightforward - treatments can be Brushed, or Sprayed, depending on the product and project requirements. It's recommended to apply a preservative before finishing with paint, stain, or oil, ensuring the timber is protected from within.

Whether you’re maintaining exterior joinery, garden structures, or treating interior timbers in high-moisture environments, wood preservative treatments provide essential first-line defence, helping reduce the need for costly repairs or replacements over time.

Key Benefits:

- Protects against rot, mould, fungi, and woodworm
- Deep-penetrating, long-lasting timber protection
- Available in either solvent or water-based formulations
- Clear and coloured options to suit aesthetic preferences
- Suitable for decking, fencing, sheds, cladding, and interior timbers

Summary:

Wood preservative treatments from brands like Cuprinol and Ronseal are a vital part of woodcare, providing essential protection against rot, fungi, and insect attack. By deeply penetrating the timber, they help prolong the life of wooden structures exposed to moisture and environmental wear. Used as a first-line defence, preservative treatments prepare wood for further finishing while reducing the risk of costly repairs over time.

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Displaying 24 products

Special Offer
  4.9/5.0  (2952)
A solvent-based wood preservative treatment that offers microporous protection against wood rot, fungi, decay, mould and insect attack. Available in clear and a range of attractive wood tone colours.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
More info
Available in 1L, 5L
Special Offer
  5.0/5.0  (1275)
A UV-resistant, deep penetrating, low odour wood protective treatment for all exterior wood that is harmless to beneficial insects and plants when dry. Solvent-based formula is available in clear, green and a range of attractive wood tone colours.
  • 2-3 coats
  • 6m² per litre
  • 48 hrs drying time
More info
Available in 1L, 2.5L, 5L
  5.0/5.0  (306)
A complete wood preservative treatment that protects exterior wood from wood rot, decay and woodworm.
  • 3 coats
  • 8m² per litre
  • 24 hrs drying time
More info
Available in 5L
  4.8/5.0  (151)
A clear, exterior wood preserver that protects against mildew, rot, blue stain and wood boring insects whilst reducing wood swelling and shrinkage
  • 1 coat
  • 6m² per litre
  • 12 hrs drying time
More info
Available in 750ml, 2.5L
  4.9/5.0  (152)
A low-odour wax-free wood preservative treatment that offers microporous protection against wood rot, fungi, decay and mould. Ideal for use with water-based paints and stains.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
More info
Available in 1L, 5L
  5.0/5.0  (144)
An oil and wax based biocide-free wood preservative for interior and exterior use and ideal for high moisture environments.
  • 1 coat
  • 8m² per litre
  • 24 hrs drying time
More info
Available in 125ml, 750ml, 2.5L
  4.9/5.0  (160)
A water-based timber protection and colour treatment lasting up to 5 years.
  • 2 coats
  • 5m² per litre
  • 4 hrs drying time
More info
Available in 1L, 4L
  4.9/5.0  (80)
An exterior water-based wood preservative for rough and smooth garden timbers available in 5 shades.
  • 2-3 coats
  • 5m² per litre
  • 4 hrs drying time
More info
Available in 5L
  5.0/5.0  (68)
Quickly eliminate and protect against woodworm and woodboring insects.
  • 2 coats
  • 5m² per litre
  • 48 hrs drying time
More info
Available in 1L, 2.5L, 5L
Special Offer
  4.7/5.0  (16)
A clear, water-based wood preservative treatment for interior and exterior timber. Prevents insect attack, rot and decay. The wax-free formula makes it ideal for treating wood prior to applying water-based wood paints and stains.
  • 2 coats
  • 5m² per litre
  • 16 hrs drying time
More info
Available in 1L, 5L
  5.0/5.0  (32)
Seals and protects end grain from weathering and moisture to preserve exterior timbers.
  • 2 coats
  • 5m² per litre
  • 4 hrs drying time
More info
Available in 375ml
  4.9/5.0  (25)
Combat wood rotting funghi and insects with this high-quality wax-free wood preserver. Ideal for treating wood prior to applying water-based paints and stains.
  • 2 coats
  • 10m² per litre
  • 24 hrs drying time
More info
Available in 2.5L
  4.9/5.0  (13)
A fast and effective woodworm killer for interior and exterior timber
  • 2 coats
  • 5m² per litre
  • 48 hrs drying time
More info
Available in 500ml
  5.0/5.0  (7)
An interior-use only, clear, water-based, all-purpose treatment to prevent insect attack, re-infestation and fungal decay.
  • 2-3 coats
  • 3.5m² per litre
  • 48 hrs drying time
More info
Available in 1L, 2.5L, 5L
  5.0/5.0  (10)
Waterproofs and protects cross cut end grains against water damage which can lead to rot and decay. Rainproof in 90 minutes.
  • 2 coats
  • 8m² per litre
  • 24 hrs drying time
More info
Available in 750ml
  5.0/5.0  (12)
A professional wood preserver for exterior use. Penetrates deep into wood and protects against wood destroying fungi.
  • 2-3 coats
  • 8m² per litre
  • 6 hrs drying time
More info
Available in 1L, 2.5L, 5L
  5.0/5.0  (8)
A solvent-based end grain preserver which deeply penetrates to protect against wood boring insects, wood rotting fungi and blue stain.
  • 2 coats
  • 5.5m² per litre
  • 24 hrs drying time
More info
Available in 1L
  4.4/5.0  (9)
An effective water-based clear wood preservative that provides protection against wet rot, dry rot, wood worm and insect attack.
  • 3 coats
  • 6m² per litre
  • 24 hrs drying time
More info
Available in 2.5L, 5L
  5.0/5.0  (16)
A deep penetrating water seal perfect for bricks, aged concrete, render, painting, terracotta and wood.
  • 2 coats
  • 8-10m² per litre
  • 48 hrs drying time
More info
Available in 5L
  5.0/5.0  (8)
Penetrates deep into the wood to kill wood boring insects, their larvae and eggs.
  • 3 coats
  • 10m² per litre
  • 2 hrs drying time
More info
Available in 1L, 5L
A water-based, moisture barrier for stone, plaster, brick and slate. Stops mould and fungal growth. Contains UV filters.
  • 1 coat
  • 17m² per litre
  • 30 mins drying time
More info
Available in 1L, 4L
  5.0/5.0  (1)
Effective formula that prevents re-infestation and ensures effective protection for years to come.
  • 2-3 coats
  • 3.5m² per litre
  • 48 hrs drying time
More info
Available in 1L, 5L
  4.5/5.0  (2)
Prevents brickwork, concrete, stone and plaster from being damaged by rain, ice, snow and frost
  • 2 coats
  • 6m² per litre
  • 5 hrs drying time
More info
Available in 5L
A quick drying solution that seals chalky, dusty or weathered surfaces
  • 2 coats
  • 37.5m² per litre
  • 5 hrs drying time
More info
Available in 2.5L