- There are no more items in your cart
- Shipping Calculated at checkout
-
Sub-Total (inc. VAT)
£0.00
Need Help?
Wood Treatment
Timber needs more than just a coat of colour to survive the elements. Without proper protection, wood is vulnerable to insects, rot, and fungal decay - indoors and out. Specialist wood treatments provide a vital defence, preserving everything from interior beams and floorboards to sheds, joists, and garden structures. Once dry, treated timber can be finished with high-quality coatings to enhance durability and weather resistance. For example, revitalise a tired patio area with durable decking paint, or refresh garden boundaries using reliable fence paint.
Cromar Universal Dry Rot & Woodworm Killer+
Cromar Universal Dry Rot & Woodworm Killer+ is a wood preservative used for pre-treatment of non-resistant exterior wood. Contains active ingredients effective against wood-destroying fungi, wood-discolouring fungi (blue stain) and wood-boring insects. Protects construction timbers against attack by woodworm and gives fungal...
Rustins Wet Rot Wood Hardener
Rustins Wet Rot Wood Hardener is a solvent-based moisture-curing reactive polymer solution designed to penetrate deeply into and harden rotten or decayed wood. Once fully dried, the polymer strengthens and reinforces the deteriorated wood to support the use of wood filler and provide a seal against further moisture penetration. Suitable for...
Sikagard Universal 5 Star Wood Treatment
Sikagard Universal 5 Star Wood Treatment is an all-in-one treatment for wet rot, dry rot, fungi and wood boring insects - it takes care of all your wood treatment and preservation needs in the one can. Solvent and VOC free Internal and external use Micro emulsion provides deep and even penetration Rapid drying Non-flammable Virtually...
Cromar Creotreat
Cromar Creotreat is an oil based timber treatment and stain for outside use on fences, sheds and timber posts. Untreated timber requires no special treatment Use stiff brush and apply to dry surfaces Good coverage, approx 1-4m2 per litre per coat
Cromar Wood Treatment
Cromar Wood Treatment is a decorative wood treatment for professionals and private end-users for exterior use e.g. facades, carports, shutters and balcony railings. For use on sheds, fences and garden furniture. Should not be used indoors The stain penetrates wood easily and thereby gets into inner layers. Protects wood to a certain...
Need Help?
Need Help?
Wood Treatment Products – Preservatives, Rot Treatments & Woodworm Killers for All Timber
Wood treatment products are a key line of defence in building preservation, construction, landscaping, and restoration work. From commercial timber structures to domestic garden fencing, exposed and internal wood finishes must be shielded against long-term deterioration. This category includes solutions for protecting vulnerable timber against wood-boring insects like common furniture beetle, as well as fungicidal treatments for wet rot and dry rot. Clear, coloured, and combined products are available to simplify application where more than one threat is present.
These products are used across industries, from property care specialists to heritage conservation teams and DIY users treating roof voids or garage doors. Builders working on extensions or loft conversions can pre-treat structural timber, while landscapers use these solutions for sleepers, decking joists, and timber edging. Many products penetrate deep into the wood to form an effective barrier against future attack, and several are designed for use on damp or high-moisture content timber. Boron-based options are ideal for areas requiring odourless, solvent-free formulas, especially in enclosed spaces. For flaking or powdery timber, stabilising solutions strengthen the surface before coating or treating. Some options are BPR (Biocidal Products Regulation) compliant for professional use only—check the label before use. Always refer to datasheets and technical advice for application guidance.
Wood Treatment FAQs
Can I treat wood that has already been stained or painted?
Only certain products will penetrate coated surfaces. Stripping or sanding back to bare wood is often needed.
Are these products suitable for use in listed or heritage buildings?
Yes - look for low-odour or boron-based treatments that don’t alter the timber’s appearance and are approved for conservation use.
Can I use these products on garden furniture?
Yes, but ensure the treatment is suitable for external softwood or hardwood and allows for overcoating with furniture oil or UV-resistant finishes.
Do I need to use personal protective equipment (PPE)?
Yes, always check the datasheet. Solvent-based treatments often require gloves, masks, and eye protection during application.
How long does treated timber last?
With correct application, treated timber can last for decades. However, exposure levels, moisture content, and use of topcoats can affect longevity.
Can I spray apply these treatments indoors?
Only if the product label specifically permits it and the area is well-ventilated. Most indoor use calls for brush application to control vapour.
What are borate-based treatments?
These are low-toxicity, odourless solutions that penetrate deeply into the timber and are effective against woodworm and fungal decay.
Can I treat timber in damp conditions?
Yes, some products are formulated for use on damp or green timber. Avoid using solvent-based treatments on wet surfaces.