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Composite Wood Deck Cleaner

If you own a composite wood deck, you’re likely aware of just how beautiful and low-maintenance these outdoor living spaces can be. But even composite decking isn’t fully immune to the elements. From muddy footprints to algae growth and BBQ spills, your decking takes a real battering. That’s where a premium composite wood deck cleaner comes into play.

In this article we’ll outline the essentials: what composite wood deck cleaner is, why you need it, how to use it and what the best products on the UK market right now are. Whether you want to spring clean or are tackling spots and stains, this blog is for you!


composite wood deck cleaner
composite wood deck cleaner

What Is Composite Wood Deck Cleaner?

Composite wood deck cleaner is a specialized cleaning solution used for cleaning and protecting composite decking. In contrast to regular wood cleaners, these products are specifically formulated for the unique materials typically used in composite decks (the majority of which are a combination of wood fibres and plastic). A quality composite wood deck cleaner will dissolve grime without harming the surface, discolouring the boards or leaving toxic residue.


Why You Need Composite Wood Deck Cleaner

You might be asking, “Can’t I just use soap and water? Soap and water work for light cleaning, but can’t touch deep grime, mould or oil stains. But here’s the reason selecting a composite wood deck cleaner made specifically for the surface is the better choice:

  • Designed for Composite — While an all-purpose cleaner may strip protective coatings or dull the surface, a composite wood deck clean will not do this.
  • Removers Tough Stains: Oil, grease, mildew, and algae.
  • Inhibits Growth of favourable Fungus: Several composite cleaners contain anti-fungal agents.
  • Extends Lifespan: Using a deck cleaner keeps your deck in prime condition all year.

Common Problems with Composite Decking

Even though composite decking is built to withstand the weather, it’s not entirely maintenance-free. Common issues include:

  • Mould and Mildew Buildup
  • Stains from Food, Beverages, and Oils
  • Discolouration from Sunlight
  • General Dirt and Grime

Using a composite wood deck cleaner regularly can prevent these issues from becoming permanent.


How often should you use composite wood deck cleaner?

Once every spring and autumn, thorough cleaning of composite decking is generally a good rule of thumb. However, if you use your outdoor space regularly or see visible dirt, it’s a good idea to clean your deck with composite wood deck cleaner every several months.


Step-by-Step: How to Use Composite Wood Deck Cleaner

Cleaning your composite deck doesn’t have to be complicated. Here’s a quick guide:

Sweep the Deck

Remove any debris like leaves, twigs, and dirt.

Rinse with Water

Wet the surface with a garden hose.

Apply Composite Wooden Deck Cleaner

Follow the manufacturer’s recommendations. Most composite wood deck cleaners need to be mixed with water. Apply evenly with a mop or soft brush.

Let It Sit

Let the cleaner sit for 10–15 minutes (or as instructed).

Scrub Gently

Sabotage any stubborn spots with a soft-bristle brush.

Rinse Again

Wash with clean water thoroughly. Do not let the cleaner dry on the deck.


Top Composite Wood Deck Cleaner Brands in the UK

You have options when it comes to selecting which is the best composite wood decking cleaner. Here are some of the UK’s favourite options:

Ronseal Decking Cleaner & Reviver

Great for prepping decks for staining or simply refreshing them. It’s an effective and low-cost measure.

Algon Organic Path & Deck Cleaner

This green alternative does well with algae and moss, and is safe for kids and pets.

Owatrol Compo-Clean

Highly recommend using this for composite decking. It acts quickly, is biodegradable and doesn’t need any vigorous scrubbing.

Everbuild Patio Wizard

This strong cleaner is not limited to composite decks and works well on many outdoor surfaces.


DIY Composite Wood Deck Cleaner Recipe

Prefer a homemade approach? You can create your own composite wood deck cleaner using household ingredients:

Ingredients:

  • 1 cup white vinegar
  • 1/2 cup baking soda
  • 2 tablespoons dish soap
  • 4 litres of warm water

Mix these together and apply with a mop or brush. It won’t be as potent as commercial composite wood deck cleaner, but it works well for regular maintenance.


Tips for Maintaining Composite Decking

And even with the best composite wood deck cleaner, a few simple habits can help your deck have a longer life:

  • Blot Up Spills Immediately: Don’t allow oil or wine to sit.
  • HELPFUL HINT For Outdoor Rugs: When using rugs outside, be cautious not to trap moisture.
  • Trim plants surrounding deck: Decrease debris and moisture build up
  • This most important thing — do not use pressure washer on high setting — Risk damage on surface.

FAQs About Composite Wood Deck Cleaner

Q. Can I use bleach on composite decking? 

No, you shouldn’t. The bleaching agent can discolor and harm the composite material. Always use a suitable composite wood deck cleaner. 

Q. Will a composite wood deck cleaner erase mould?

 Indeed. Composite wooden deck cleaners are specially made to safely rid the surface of mould, mildew, and algae. 

Q. How long does it take to clean a composite deck?

 One 1-2 hours, depending on size, the amount of dirt, and the type of cleaning agent. 

Q. Can I use a power washer with composite decking? 

Indeed. Never use a pressure greater than 1500 psi, avoid a nozzle, and always aim at least 8 inches away from the surface.


Why Choosing the Right Composite Wood Deck Cleaner Matters

Your deck is an investment — financially and in the enjoyment of your home life. This means that when you choose the right composite wooden deck cleaner, you are not just cleaning your deck but preserving it. A quality cleaner cuts through grit and grime with gentler compounds, sparing you time, labor, and repair bills later on.


Final Thoughts

The importance of using the correct composite wood deck cleaner cannot be overstated when it comes to ensuring a clean outdoor area. The right cleaner helps take care of everything from sticking stains to extending the life of your decking boards. Whether you choose a premade brand or make your own DIY mix, the objective is clear — to maintain a clean, safe, beautiful deck.

With composite wood decking cleaner as part of your routine maintenance, you can enjoy your deck year after year, regardless of the season.

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