Best Composite Decking UK

Transform customer gardens into stylish, low-maintenance retreats with Witch Group’s composite decking. 

Designed to withstand the unpredictable British weather, it won’t rot, warp, or splinter like traditional timber, and built-in UV protection keeps it looking vibrant through both rainy winters and sunny summers. 

With its long-lasting durability and virtually no upkeep, composite decking saves you time and money, while adding value and elegance to your outdoor space. It’s the smart, modern choice for UK homeowners who want lasting beauty without the hassle.

Elegant 4m x 4m composite decking patio, coloured in misty grey with artificial grass and gravel border

Composite Decking Styles​

Upgrade your garden with composite decking in UK – durable, weatherproof, and effortlessly stylish all year round.

Across the UK, homeowners are using composite decking to completely transform the look and feel of their gardens. From sleek patio extensions or BBQ areas to raised seating areas and stylish walkways. Composite decking creates a modern, elegant finish that enhances any outdoor space. Its wide range of colours means it blends seamlessly with both traditional wood and rattan furniture alike. 

Help your customers turn ordinary gardens into inviting spaces for entertaining, relaxing, and enjoying the outdoors.

Benefits of Witch Decking

Easy To Clean

Simply clean decking with mild detergent or cleaner and quickly rinse the area with a hosepipe.

UV Protected

Built-in integrated protection to combat UV rays. This ensures the sun will not damage or fade your decking. 

R11 Slip Resistant

Tested in various conditions including dry, wet plus under load. Our decking stands up to every situation. 

Family Friendly

Ideal, low maintenance patio decking solution for family life. Your customers will love our decking range. 

New Royal Heritage

Our newly-updated composite decking range, New Royal Heritage has built on it’s well-known durability with proven credentials to. withstand the British weather. With many happy landscapers over the last several years, we have been happy to recommend this product to all of our customers.

Mix things up with the option to install using either side of the R11 slip resistant decking boards. The wood grain feature side can be alternated with the multi-channel design to create striking looking borders and variation patterns. 

Patio doors leading to a simple grey decking area with rattan furniture. The perfect environment for entertaining.
Anthracite 4m x 2m decking area to create a simple patio for an english garden

Quantum

Now Low Stock

Upgrade your garden with this ‘crossgrain’ composite decking – durable, weatherproof, and effortlessly stylish all year round.

Our re-enforced HPC composite decking featuring crossgrain styling. Produced in limited quantities, as a first-to-market crossgrain design. This enabled Witch Group to provide a 3.6m decking board with the grain at the forefront of the aesthetic. 

Showcase new-level style with perfect practicality with Quantum composite decking. Rounded hollow construction profile provides increased strength while reducing weight and cost for the retailer. 

Decking FAQs

Do I need an air gap / expansion gap?

Yes, every installation requires a 10mm air gap between your retaining wall (or house) and the decking structure. Although composite, a decking and its subframe should have air flow and be able to expand and contract. This ensures that the structure as a whole can adapt to climate fluctuations throughout the year without putting strain on the joints, clips and decking.  

Joists act as the base support for your decking boards and should be spaced evenly, usually at 400mm centres. Adding blocking between joists increases strength and stability while also reducing the risk of twisting or warping. It is recommended to add extra joists to areas where two boards will meet (end-to-end) for extra strength.

While under construction, regularly check that the frame is level and square. A slightly uneven frame will cause significant issues when laying decking boards – either now or in future. 

How should I clean composite decking?

As a low-maintenance product, composite decking only needs periodic cleaning with simple household products. Diluted washing up liquid (or patio cleaner) and light hosepipe spraying should easily remove any marks or debris from your decking. 

If you do spill food or drink onto your decking, we recommend a quick wipe and rinse to help ensure no long-term staining. 

Never use abrasive pads, scrubbing brushes or harsh chemicals on the decking as it can damage the surface. 

We do not recommend using a high pressure washer. Although not advised, if you do use a power pressure washer, only use with a ‘wide-fan-angle spray’ at low pressure. Powerful jets of water can damage the decking and cause splits or cracking to occur. Once the deck has been split, water can freeze in these cracks, causing further damage on expansion. 

No, one of the main advantages of composite decking is that unlike timber, it does not need regular sanding, priming or staining. It is coloured during the manufacturing process and coated or wrapped to ensure its longevity.

Starter Kits, Clips & Screws, L-Shaped Angle Profiles & more

For the complete list of composite decking accessories available, contact our team on 01282 442 200.

Light brown heritage decking with boards flipped to provide a grain contrast effect.
Anti-slip composite decking is perfectly suited to the UK climate. UV protected and slip resistance tested in both Wet and Oil loaded conditions.
Anthracite composite decking with grain detail.
Elegant 4m x 4m composite decking patio, coloured in misty grey with artificial grass and gravel border

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