Composite decking in Cheshire, engineered to last decades

Composite decking has changed what people expect from a garden deck. A generation ago a deck meant softwood boards that needed scrubbing every spring, splintered by year five and were green by every November. Modern capped composite removes almost all of that. The board is a dense wood-fibre and polymer core wrapped in a bonded polymer cap, so water cannot get in, the surface will not splinter, and the colour holds for two decades or more.

In Cheshire that matters more than in drier parts of the country. Our gardens spend a lot of the year damp. Shaded courtyards in Chester, north-facing plots in Runcorn, riverside gardens along the Weaver at Northwich and estuary-influenced sites at Ellesmere Port all create ideal conditions for algae. Capped composite simply gives it far less to grow on, and what does settle rinses off in minutes.

What we install, and what we avoid

We fit capped, solid-core composite from established manufacturers with genuine UK warranty support. We deliberately avoid cheap hollow-core boards: they flex between joists, they sound hollow when you walk on them, their cut ends need plastic plugs that never quite match, and they trap water inside the chambers. The extra cost of a solid board is modest and the difference underfoot is immediate.

Colour ranges run from cool stone greys and charcoals through to warm oaks, teaks and driftwood tones. As a rule, cooler greys work well with rendered and modern properties and grey aluminium bi-folds, while warmer oak tones suit red brick and sandstone — which covers a very large proportion of Cheshire housing. We bring physical samples to the survey and leave them with you, because composite reads completely differently in your own light than it does in a brochure.

The substructure is what actually fails

A twenty-five year board on a five year frame is a five year deck. This is where most composite installations go wrong, and it is not visible when the job finishes. We build the frame from pressure-treated timber at 400mm joist centres — tighter than many installers use, and reduced further to 300mm under hot tubs, planters or heavy furniture. Every joist top edge gets butyl tape so water cannot sit on the bearing surface. Posts and bearers sit on concrete pads or adjustable pedestals sized to the actual load, never on loose slabs bedded into topsoil.

Composite also moves more with temperature than timber does, so gapping matters. We follow the manufacturer's expansion allowances precisely for both board ends and perimeter clearances, use their hidden fastener system where specified, and never pinch a board tight against a wall. Get that wrong and boards buckle in the first hot August. Get it right and the deck stays flat and quiet.

Ventilation, drainage and the void

Every composite deck we build has a ventilated void beneath it, open on at least two sides, with a permeable membrane and clean aggregate below to stop weed growth and mud splash. Where the ground is slow-draining — common on the clay around Crewe, Sandbach and Nantwich — we install a land drain during the foundation stage while the ground is already open. It costs very little at that point and it removes the single biggest cause of long-term deck problems.

Composite decking costs in Cheshire

Installed capped composite decking generally runs £180–£260 per m² depending on the board range, the amount of groundworks, and whether steps, balustrade or lighting are included. Raised decks cost more because of the additional posts, bracing and guarding. Our decking prices guide breaks this down with worked examples for typical Cheshire projects, and every quotation we issue is a fixed written price after a site visit.

Living with a composite deck

Maintenance amounts to sweeping leaves off, rinsing the surface with a hose or a low pressure wash twice a year, and clearing the void of debris each autumn. Spills wipe off. Barbecue grease should be cleaned promptly rather than left to bake in, and a fire pit or chiminea needs a heat-proof base — not because composite is fragile, but because no decking material enjoys direct radiant heat. That is genuinely the whole list.

Where we install composite decking

We fit composite decking throughout the county. Popular areas include Chester, Congleton, Crewe, Ellesmere Port, Frodsham, Knutsford and every other town on our areas we cover page. Prefer natural material? Compare with timber decking or read about raised decking for sloping gardens.