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Guides05/05/2025 · 6 min read

Everyday maintenance for a composite decking area – practical tips.

Find out how to care for your composite decking every day. Discover simple maintenance tasks that will help keep it in excellent condition for many years.

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Composite decking is becoming increasingly popular—and we can see why! It is durable, resistant to the weather, and looks very elegant too. But, like any outdoor surface, it needs a little care and attention. The good news? Keeping it clean and in good condition need not be time-consuming or complicated. Simply introduce a few easy habits into your daily routine. In this article, we explain how to care for composite decking day by day, week by week and season by season. Even the best material cannot protect itself from dirt, dust and the effects of the weather!

 


Why does regular maintenance matter for composite decking?

Let’s start with the basics. Why should you care for your decking regularly if composite is supposedly “maintenance-free”? Well, the truth lies somewhere in between. Composite material does not need treating or painting like wood, but:

  • Dirt can build up and discolour the boards

  • Water and damp can make the surface slippery and create a risk of slipping

  • Dust, sand and leaves accelerate surface wear

  • Grease and food stains (e.g. from a barbecue) can soak in

Daily or weekly care is a way to keep your decking looking like new for years—and to avoid having to spend money later on costly cleaning or replacement.

What should you avoid when maintaining it?

  • Pressure washers – they can damage the surface of composite decking boards, especially at excessively high pressure

  • Harsh chemical products – bleach, solvents, acetone? Avoid them! They can permanently damage the colour and texture

  • Overly abrasive metal brushes – they can scratch the surface

                                                                                                       

 

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Daily care habits – what should you do?

1. Sweep regularly.

Yes, the simplest task can work wonders. Use a soft broom or brush to remove leaves, pollen, sand and other small bits of dirt. This not only helps prevent scratches, but also keeps moss and mould at bay.

2. Wipe up spills straight away.

Whether it is tea, wine or ketchup, act straight away. The longer a stain stays on a board, the harder it is to remove. For a quick wipe, use a damp cloth or sponge with a little mild detergent.

3. Keep the area around furniture and the barbecue clean.

The most dirt tends to build up under the table or by the barbecue. Check these areas regularly and clean them more often, especially if you barbecue or eat outdoors frequently.

Weekly and monthly tasks – a deeper clean.

1. Washing with water and detergent

It is a good idea to wash the decking once a week with warm water and a mild cleaning product (ideally one designed for composite material). You can use a soft brush to scrub along the boards.

 


 
2. Checking drains and gaps

Composite decking often has a system of gaps between the boards—make sure they are not clogged with leaves, needles or mud. Blocked drains can trap water, leading to a build-up of deposits and unpleasant smells.

3. Removing moss and lichen

If you notice the beginnings of green growth, use a moss-killing product (preferably one that is environmentally friendly). Do not wait for the problem to get worse.

Seasonal care tips.

Spring:

  • Give it a thorough clean after winter

  • Check for mould and damage

  • Protect the surrounding area—for example, replace any damaged components

Summer:

  • Increase the frequency of cleaning after intensive use

  • Protect against stains from grease and drinks

Autumn:

  • Remove leaves regularly to prevent moisture and moss

  • Check the drainage outlets before rainfall

Winter:

  • Do not use salt or sand – they can damage the surface

  • Where possible, do not let snow accumulate – remove it with a plastic shovel

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Frequently asked questions (FAQ).

Does composite decking need to be impregnated?
No, it does not require impregnation – that is one of its great advantages!

Can composite decking be cleaned with a pressure washer?
It is better to avoid this – high pressure can damage the surface.

How often should composite decking be cleaned?
Sweeping – preferably every day or every few days. Washing – once a week or once every two weeks, depending on use.

Can vinegar be used for cleaning?
Vinegar in a low concentration can be used as a disinfectant, but regular use is not recommended, to avoid damaging the composite material.

In summary – what should you do to keep your decking in good condition for years?

Looking after composite decking does not require many hours of work or specialist equipment. The key is to be consistent and gentle. Daily sweeping, removing stains promptly, washing weekly and monitoring its technical condition – that really is enough to keep the decking looking fresh and attractive for many years.

If you look after your decking regularly, it will reward you not only with its appearance but also with a longer service life – without the need for costly refurbishment.


 

 


Dominik Gorgoń

Article author

GARDPOL - Dominik Gorgoń

I am an expert in composite and wooden decking boards, with 10 years of experience. As one of the founders of a company specialising in supplying composite and wooden materials and providing installation services, I have comprehensive knowledge of all the important factors and aspects involved in designing, building and maintaining terraces.

Thanks to my experience, I have an excellent understanding of the differences between wooden and composite decking boards, including their durability, resistance to weather conditions, ease of maintenance and appearance, and as a result I understand every customer's needs very well.

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