clean and maintain composite decking

How to Clean and Maintain Composite Decking

Composite decking is an attractive, practical, and long-lasting addition to just about any garden.

However, keeping it attractive and making sure it’s as long-lasting as it can be will require a little bit of maintenance now and again. This does not have to be difficult or hard work.

Cleaning Your Composite Deck

You can help keep your decking looking its best with a simple, regular clean. This can also delay the need for any kind of deeper, more serious clean. This can be as simple as using a stiff broom to sweep off loose dirt and debris. You can do this as little as once a week.

If there are any stains or smears of dirt that don’t seem to warrant any specialist treatment, you can probably tackle them with a gentle soap, water, and a little scrubbing from a stiff brush.

Specialist Composite Deck Cleaning

Like any kind of outdoor wood, composite decking is prone to fading and discolouration over time. Sunlight, water, and changing temperatures will all take their toll on the wood.

Dirt will slowly work its way into the grain where it will not be easily shifted without specialist treatment.

This is when a more powerful and more dedicated decking cleaner will become necessary.

Choose a composite decking cleaner that will penetrate the wood for a deep clean both on and inside the wood.

You might like to choose a product like Compoxell, which is usable straight from the bottle, is water-based and safe for the environment, and uses a gel formula to prevent the dripping and run-off associated with most cleaners.

You should use your cleaner according to the instructions on the bottle. Usually, this will involve applying to the decking with a brush, leaving it to work, and then rinsing it off with clean water.

Before and after application of CompoClean

Decking Care and Preservation

Even the best decking cleaner can’t undo all of the toll that weather and sunlight will take on your decking. Especially if it has heavy traffic or is in an exposed area.

More importantly, over time repeated exposure to water and changing temperatures can cause the wood to weaken and crack if it’s not properly protected.

Apply Composite Deck Stain

You can prevent this and also restore the wood’s appearance more effectively by using an appropriate composite decking care product.

Deck finished with CompoCare

A decking care treatment will help to protect your wood and seal it against the weather and will also help enhance, revive or restore the colour of the wood. Compoxell, for example, will provide a weatherproofing and stain-repellent finish in just one coat and is available in grey and brown.

Like Compo-Clean, it is a water-based formula that is safe for the environment. You can apply most composite decking care products straight from the tin.

We hope you found this post on how to clean and maintain composite decking helpful. If you have any other advice or top tips, please feel free to leave them in the comments below. We love hearing from you!

You can also follow us on TwitterFacebook, Instagram or Pinterest at @OwatrolUK or find us under the hashtag #OwatrolUK

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Owatrol Team
About Owatrol Team

Our team are ready and willing to support you with your requirements whether it is protecting your newly laid deck or renovating a luxury yacht, whatever the application Owatrol has the solution you are looking for.

10 thoughts on “How to Clean and Maintain Composite Decking

  1. Is there a coating for my composition deck ,that I could use over the compo care stain ,to give a protection and sheen. We live by the sea with salt air

    1. Hi Derek,

      Unfortunately we do not sell a coating to go on top of Compo Care, it is designed as a standalone finish to revive, stain protect and help with waterproofing.

      Many thanks,
      The Owatrol Team

    1. Hi Michael,

      Water stains are a certainty around a hot tub. It will be caused by the salts i.e. Limescale drying on the surface as the water evaporates off thus it is unlikely that Compo-Care will prevent water staining in this instance.
      However, staining from rain water will not occur.

      I hope this was helpful.

      All the best,
      The Owatrol Team

  2. Hello,

    I have just applied Owatrol Comp-Care in gery to my new Smart Board composite deck and it has dried showing a number of ‘overlapping marks’. What is the easiest way to remove them?


    1. Hi there Alan,

      Sorry to hear you have not had the best experience with Compo-Care.
      A second coat can be applied to even out the finish. We suggest doing 1 or 2 boards first to see if this corrects the issue. If applying a 2nd coat does not work then you will need to strip with Prepdeck, neutralise with Net-trol and reapply I’m afraid. It’s very important to work to the end of the board to stop this happening again.

      Please feel free to give us a call to discuss further should you have any more questions: 01582 592707

      All the best,
      The Owatrol Team


    1. Hi there Mike,

      We would recommend you use Owatrol Compo-Clean, our water-based cleaner and degreaser specifically formulated for use on composite wood which you can find here: – We offer 100ml samples for £6 with free delivery should you wish to try it out first.

      I hope this was helpful.

      All the best,
      The Owatrol Team

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