One of the biggest advantages of composite decking is its low maintenance, offering a hassle-free alternative to timber without compromising on aesthetics or durability. Unlike traditional wood, which requires regular sanding, staining, and sealing, composite boards need only simple cleaning to maintain their appearance.

With the right care, your Brite Decking composite deck can look brand new for decades. In this guide, we’ll explore best practices for keeping your deck in top condition, covering everything from routine cleaning to handling stains, mould, and weather exposure.

How Often Should You Clean Your Composite Decking?

The frequency of cleaning depends on factors such as foot traffic, exposure to the elements, and surrounding vegetation. A light clean every couple of months helps prevent debris buildup, while a deeper clean twice a year removes any lingering dirt and stains.

If your deck is exposed to pool chemicals, rain, or excessive shade, it’s important to rinse it down after heavy use to prevent salt or moisture residue from settling. If you often cook outdoors, using a BBQ mat can protect the surface from oil and grease stains.

Best Practices for Cleaning Composite Decking

Keeping your deck looking fresh is as simple as sweeping away debris and washing the surface with warm, soapy water. A soft brush is ideal for loosening dirt, while a hard-bristled broom can help lift tougher stains. For deep cleaning, a pressure washer can be used – but always keep the nozzle at least 30cm away to prevent damage.

If stains do occur, acting quickly is key. Grease, wine, dirt, and bird droppings can usually be removed with detergent and warm water, followed by gentle scrubbing. For rust stains, a mixture of oxalic acid and warm water works best, while heavy grease stains may require a sodium carbonate solution, available at most hardware stores.

Mould is another factor to be aware of, especially in damp or shaded areas. While composite decking resists deep mould penetration (unlike timber), it can still develop surface mould if moisture lingers. If this happens, start by scrubbing the affected area with warm water and detergent, using a hard-bristled broom. For stubborn mould, a mould removal solution can be added – but always follow the product’s instructions to avoid damaging the decking surface.

Common Mistakes to Avoid

To protect the integrity of your composite decking, it’s important to avoid harsh chemicals or abrasive tools. Bleach, paint thinners, and solvents can degrade the protective layer, while metal brushes can leave scratches.

High-pressure sprayers on a high setting can strip the polymer cap, reducing its weather resistance. Instead, use a low to medium setting and maintain a safe distance to preserve the board’s finish.

Preventative care is just as important as cleaning. Ensuring proper drainage and good air circulation will help prevent mould growth, while removing damp leaves or pooling water can stop stains from forming.

Watch Our Step-by-Step Maintenance Guide

For a visual walkthrough on keeping your deck in perfect condition, check out our comprehensive maintenance video:

Watch Now: How to Maintain Your Composite Deck

This short guide covers everything from stain removal to mould prevention, helping you keep your Brite Decking composite deck looking flawless.

With minimal effort, your composite decking will maintain its colour, durability, and finish for decades. By following these simple cleaning and maintenance steps, you can enjoy a beautiful, low-maintenance outdoor space year after year.

For more expert advice, visit our Cleaning & Care Guide or speak with the Brite Decking team at 1300 481 664.