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Decking Cleaners
Cut through dirt, algae and grime with decking cleaners designed to revive tired, weathered boards in homes, gardens, pubs, restaurants, and more. Whether it’s moss-covered decking under trees or greasy BBQ stains after a summer gathering, these high-performance cleaners prepare wood and composite surfaces for coatings or restore them to a natural, safer finish. From softwood planks in family gardens to composite boards on hotel terraces, the right cleaner removes biological growth, prevents slip hazards, and lifts embedded debris that discolours or damages the surface. After cleaning, consider enhancing with decking paints for added protection or refreshing colour, or enrich the wood’s natural tones using decking stains that complement surrounding surfaces and wood paints.
Owatrol Owaclean Hull & Deck Cleaner
Concentrated, solvent-and-acid-free cleaner. For regular maintenance of hulls and decks. Usable on: Glassfibre, Plastic, Stainless Steel, Anodised Aluminium, PVC, Paint. Quick and easy to use. Non-aggressive formula that will not damage surfaces. Residue and smear-free after rinsing. Removes mould and other similar markings.
Owatrol Deck Cleaner & Brightener
Restores and brightens fibreglass and weathered marine wood, like Teak and Mahogany, without bleaching or damaging wood fibres. Works on all wood species, plastic, and GRP surfaces. Removes mould, mildew, pollution, and rust stains. Acts fast, restoring natural colour in 20 minutes. Biodegradable and safe for plants. Ideal for exterior,...
SmartSeal Deck Cleaner
High performance deck cleaner. For wood and composite decking. Removes moss and algae. Suitable for garden furniture. No need for pressure washing.
Osmo Decking Cleaner
Osmo Decking Cleaner is especially suited for cleaning all timber decking in outdoor areas as well as for privacy screens, fencing and garden furniture made of wood. Concentrated For cleaning decking made of untreated or oiled wood Highly effective cleaning of dirt Easy to use More Information Delivery Info
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Moss, Mould & Algae Removers for Decking
Decking cleaners offer a reliable solution for hard-to-shift dirt, biological growth, and surface contaminants that degrade exterior wood finishes and composite structures. Unlike general household cleaners, these formulas are specifically designed to penetrate porous surfaces, remove stubborn build-up, and restore outdoor decking without damaging coatings or substrate material. Their use ensures a better finish for subsequent paints, oils, or stains, while also improving grip underfoot and reducing safety risks.
Used across residential and commercial environments, decking cleaners are especially valued in hospitality, education, and leisure sectors where foot traffic and exposure to the elements quickly lead to algae build-up. Decking on beer gardens, school playgrounds, and leisure parks is particularly vulnerable. Choosing the right type - be it biocidal, solvent-free, or degreasing - depends on the surface condition and treatment stage. Application is usually simple: many cleaners are applied with a watering can, spray, or brush, left to dwell, and rinsed clean. For heavily weathered surfaces, stiff brushing may be needed. In all cases, users should check compatibility with existing finishes. These products not only improve appearance but play a vital role in surface preparation and ongoing preservation, helping decking look better and last longer.
Decking Cleaner FAQs
Can decking cleaners be used on composite boards as well as timber?
Yes, but only certain products are suitable. Always check the product label for compatibility with composite materials.
How long should I leave decking cleaner before rinsing it off?
Dwell times vary. Some products need only 5–15 minutes, while biocidal cleaners may need several hours or to remain on the surface.
Do I need to scrub the decking when using a cleaner?
Scrubbing is often recommended for ingrained dirt, especially on heavily soiled or untreated surfaces, to help lift grime effectively.
Are decking cleaners safe for pets and plants?
Some are biodegradable and safe once dry, but always check the safety section on the product label. Shield plants during application.
Should I clean my decking before painting, even if it looks clean?
Yes. Invisible contaminants like grease or mildew can affect coating adhesion. A proper cleaner ensures better product performance.
Do I need to let the decking dry completely before applying a sealer or stain?
Yes, surfaces must be dry before applying coatings. Moisture left in the boards can cause adhesion problems and finish defects.