Decking Care and Preparation for Autumn and Winter

Protecting Your Garden Decking with J & A Phillips

As the seasons change and the weather turns colder, it’s important to prepare your decking for the challenges of autumn and winter. Rain, frost, falling leaves, and limited sunlight can all take their toll on outdoor spaces. With the right care, you can extend the life of your decking, keep it looking great, and avoid costly repairs in the future.

At J & A Phillips, we supply both traditional timber decking boards and modern composite decking options from Millboard and DENAdeck, and we’re here to help you get the most from your investment. This guide explains how to maintain and protect both types of decking during the colder months.

Why Autumn and Winter Care Matters

Decking is exposed to the elements all year round. In autumn, leaves, moss, and debris can build up, trapping moisture against the surface. Winter then brings frost, snow, and damp conditions, which can accelerate damage if decking is not properly maintained.

By taking preventative steps, you can:

• Reduce the risk of slipping on wet or icy surfaces.
• Prevent long-term damage from moisture and frost.
• Preserve the colour and appearance of your boards.
• Maximise the lifespan of your decking investment.

Caring for Traditional Timber Decking Boards

Cleaning and Preparation

Timber decking is naturally porous, which means it can absorb moisture and be more prone to algae growth in the colder months. To prepare for autumn and winter:

Sweep regularly to remove leaves and organic debris.

Wash the surface with a decking cleaner to remove moss and algae.
Allow the decking to dry thoroughly before applying any treatments.

Sealing and Protection

Wooden decking benefits from regular sealing or staining:

• Apply a water-repellent decking oil or stain to help prevent water absorption.
• Choose a product with anti-fungal properties to reduce the risk of mould growth.
• Re-apply as needed (typically once a year) for continued protection.

Ongoing Maintenance

• Inspect your decking boards for cracks, loose screws, or splintering.
• Tighten fixings and replace any damaged boards before the winter sets in.

Use a stiff brush to remove ice or snow – avoid metal tools which may damage the surface.

Caring for Composite Decking (Millboard and DENAdeck)

Composite decking is designed for durability and requires less maintenance than timber. Brands such as Millboard and DENAdeck, available at J & A Phillips, provide long-lasting performance – but some care is still recommended.

Cleaning and Preparation

Sweep leaves, dirt, and debris regularly to keep the surface clear.
Wash down with warm soapy water or a composite decking cleaner to remove grime.
Composite decking is less prone to algae growth, but cleaning helps maintain its appearance.

Protection in Colder Months

Composite boards don’t require sealing, staining, or oiling.
They are resistant to fading, rot, and moisture damage, making them ideal for year-round use.
For Millboard decking, the resin-mineral surface layer adds slip resistance even in wet conditions.

Ongoing Maintenance

Check fixings and subframes, especially if timber joists are used underneath.
Avoid using harsh chemicals or pressure washers on Millboard or DENAdeck, as this can damage the surface.
For snow or ice, use a soft brush or plastic shovel to clear the surface safely.

Tips for Decking Safety in Winter

• Use anti-slip mats or strips in high-traffic areas.
• Keep decking free of fallen leaves and standing water.
• Avoid rock salt for de-icing, as it can damage both timber and some composite surfaces.

Ensure good drainage around your decking to prevent water pooling.

Why Choose J & A Phillips for Decking?

Wide range of decking options – from traditional timber boards to premium composite decking like Millboard and DENAdeck.
Expert advice – our knowledgeable team can help you choose the right decking care products for your garden.

Local, trusted supplier – serving homeowners, landscapers, and contractors across Newport and South Wales.

Prepare Your Decking for Autumn and Winter Today

Whether you’re maintaining timber decking or caring for your Millboard or DENAdeck composite decking, taking the right steps now will help protect your outdoor space for years to come.

Visit J & A Phillips in Newport to explore our full range of decking boards and maintenance products, or contact us today for expert advice on keeping your garden looking its best all year round.