Composite Decking Cleaning and Maintenance Tips

Composite decking is a popular choice for outdoor spaces due to its durability, low maintenance requirements, and aesthetic appeal. However, to ensure that your composite decking remains in top condition and retains its beauty for years to come, it is essential to follow proper cleaning and maintenance practices. This article will provide you with comprehensive guidelines on how to clean and maintain your composite decking effectively.


Cleaning Guidelines

Regular Composite Decking Cleaning Routine

To keep your composite decking looking its best, it is important to establish a regular cleaning routine. This routine should include both sweeping and washing of the decking surface.

Conduct sweeping and washing regularly


Maintaining your composite decking by sweeping it regularly will help remove loose debris such as leaves, dirt, and twigs. This can be done using a broom or a leaf blower. If you prefer a more thorough cleaning, consider using a soft-bristle brush to scrub away any stubborn dirt. After sweeping, it is time to wash the decking surface. Use a garden hose or a pressure washer to rinse off any remaining dirt or dust from the surface. Start from one end of the deck and work your way towards the other, ensuring that you cover the entire area. This process should be carried out at least once a month.

Address spot cleaning promptly


Accidents happen, and sometimes your composite decking may get stained or soiled in specific areas. In such cases, it is crucial to address stained composite decking to prevent permanent staining. Use a mild soap or a composite decking cleaner and a soft cloth or sponge to clean the affected area. Gently scrub the stain in a circular motion until it lifts. Rinse thoroughly with water to remove any residual soap or cleaner.

Thorough Cleaning Process

One consideration when selecting composite decking is its level of maintenance. While composite decking is known for its ease of cleaning, a thorough cleaning process is still necessary once or twice a year to remove any deep-seated grime or stains.

Utilize cleaning detergent appropriately

When performing a thorough cleaning, it is essential to use a suitable cleaning detergent specifically formulated for composite decking. Follow the manufacturer’s instructions for the correct amount of detergent to use and dilute it accordingly. Apply the detergent onto the decking and let it sit for a few minutes to loosen any dirt or stains.

Employ scrubbing techniques effectively

After allowing the detergent to work its magic, use a soft-bristle brush or a deck scrubber to scrub the decking surface gently. Work in small sections, applying moderate pressure to remove any stubborn spots. Be careful not to scrub too vigorously, as this may damage the WPC decking material.

Ensure thorough rinsing and drying

Once you have scrubbed the entire wood plastic composite decking surface, rinse it thoroughly with clean water to remove any detergent residue. Pay close attention to the corners and edges, ensuring that all areas are properly rinsed. After rinsing, allow the decking to air dry completely before placing any furniture or accessories back on it.


Maintenance Practices

One benefit of choosing composite decking is it is a low-maintenance decking material. However, proper maintenance practices are crucial for the longevity and appearance of your composite decking.

Preventive Measures


Implementing preventive measures can help protect your composite decking from common issues such as mildew, mold, water damage, and scratches.

Implement strategies to prevent mildew and mold

To prevent the growth of mildew and mold, ensure that your composite decking has proper ventilation. Trim any nearby bushes or plants that may obstruct airflow and create a damp environment. Additionally, avoid placing potted plants directly on the decking surface, as this can trap moisture and promote mold growth. However, if there is damaged decking that can’t be resolved by simple cleaning and maintenance, you might need to opt for decking replacement or decking repair depending on the extent of damage.

Manage water effectively to maintain decking integrity

Proper water management is essential to maintain the integrity of your composite decking. Ensure that water does not accumulate on the surface by providing adequate drainage. Regularly check for any clogged or blocked drainage systems and clear them if necessary.

Take precautions to avoid scratching


While composite decking is highly resistant to scratches, it is still important to take precautions to avoid unnecessary damage. Place furniture pads or coasters under heavy objects to prevent them from scratching the surface. Avoid dragging sharp or heavy objects across the decking and use caution when moving furniture. However, if there is noticeable damage, it is recommended that you address it immediately or engage an outdoor decking service if necessary.

Regular Inspection Protocol

Performing routine inspections of your composite decking is crucial to identify any potential composite decking issues or damage.

Perform routine checks for any damage

Regularly inspect any signs of composite decking damage, such as cracks, warping, or discoloration. Check the boards, railing, and stairs for stability and ensure that all connections are secure.

Promptly address any identified issues

If you notice any damage or issues during your inspection, take immediate action to address them. You can follow the manufacturer’s guidelines for repairs or contact a professional if necessary. However, make sure to follow the tips on choosing the right composite decking installation and repair company for optimal results. Keep in mind that timely intervention can prevent further damage and ensure the longevity of your composite decking.


Additional Recommendations

Here are some additional recommendations to help you maintain your composite decking effectively:

Avoid the use of wire brushes


While it may be tempting to use a wire brush for stubborn stains, it is best to avoid it. Wire brushes can cause scratches and damage to the decking surface. Instead, opt for soft-bristle brushes or deck scrubbers.

Keep footwear clean to minimize dirt accumulation

Encourage your family and guests to keep their footwear clean when walking on the composite decking. This can help minimize dirt accumulation and reduce the need for frequent composite decking cleaning.

Take care to avoid placing hot objects directly on the decking

When comparing WPC decking vs traditional wood decking, composite decking has the advantage of withstanding high temperatures. However, it is still advisable to use caution when placing hot objects such as grills or fire pits directly on the surface. Use heat-resistant mats or pads to protect the decking from potential damage.

Proactively prevent moisture buildup

Regularly check for any areas where moisture may accumulate, such as under potted plants or furniture. Use moisture barriers or elevate items to allow for proper airflow and prevent the growth of mold or mildew.

Apply preservatives regularly for enhanced longevity

To enhance the longevity of your composite decking, consider applying a protective preservative according to the manufacturer’s recommendations. This can help protect and lengthen the duration of composite decking under the sunlight, ensuring that your decking retains its color and beauty for years to come.


Contact DW Decking Singapore for Professional Composite Decking Services

Maintaining composite decking can be a time-consuming task. If you prefer to leave it in the hands of professionals, contact DW Decking Singapore for expert cleaning and maintenance services. Our team of experienced professionals will ensure that your composite decking remains in pristine condition, allowing you to enjoy your outdoor space without the hassle.



Proper cleaning and maintenance are essential for keeping your composite decking looking beautiful and extending its lifespan. By following the guidelines outlined in this article, you can ensure that your decking remains in top condition for years to come. Remember to establish a regular cleaning routine, address spot cleaning promptly, and perform thorough cleanings as needed. Implement preventive measures, conduct regular inspections, and take additional recommendations into account to maintain your composite decking effectively. However, if there are already visible damages that can’t be addressed by DIY, you should engage professional decking companies that offer outdoor decking repair and outdoor decking replacement services depending on your needs. With proper care, your composite decking will continue to be a source of enjoyment and relaxation in your outdoor space.


DW Decking Singapore stands as the pinnacle of expertise and innovation in the realm of outdoor living spaces. We specialize in offering premium decking services, encompassing balcony decking, timber decking, wood decking, timber decking repair, wood decking repair, decking varnishing, decking replacement, and  more. With an unwavering dedication to excellence, our team of skilled professionals ensures that each decking project is executed with precision –  elevating your outdoor spaces into inviting sanctuaries of beauty and functionality.

Furthermore, our portfolio and reviews speak volume about our dedication to exceeding our customers’ expectations. Aside from offering superior craftsmanship, we go the extra mile by providing informative articles, ensuring you make well-informed decisions about your decking needs. Contact us via WhatsApp at +65 8241 0032 for transparent quotations for all your decking requirements.