Garden Decking in Cardiff
Ground-level decking
A ground-level deck is the natural fit for a flat Cardiff terrace yard, sitting just above the old surface with space for air and water to move underneath.
Decking in Cardiff usually has one of two jobs. Behind the Victorian terraces of Roath, Canton and the older streets, it covers a tired concrete yard and gives a small walled space a warm, even floor. Out in the semis of Whitchurch, Rhiwbina and Llanishen, or on the newer streets around Pontprennau, it tends to be a proper outdoor room built off the back doors or out where the evening sun lands.
T J Landscapes builds timber and composite decks across the city. Tony and the team look at the light, the ground, the drainage and how materials will get into the garden, then give you a free quote with straight advice on what will last. For the rest of our work in the city, see our Cardiff landscaping page, or send us a few photos to get started.
The same six kinds of decking come up all over the city. What changes is the size of the plot, how much sun it gets and how we get in.
A ground-level deck is the natural fit for a flat Cardiff terrace yard, sitting just above the old surface with space for air and water to move underneath.
Raised decking is less common in the city than in the valleys, but it earns its place where a Cardiff kitchen extension leaves the back door well above the lawn.
Composite boards suit shaded Cardiff yards hemmed in by high walls, where timber stays damp for long spells and turns green far quicker than it would in open ground.
Treated timber works well in sunnier suburban Cardiff gardens, where boards dry out between showers and a yearly clean and oil keeps them looking fresh.
Steps, fascias and a neat edge matter a great deal in a small Cardiff garden, because the whole deck is in view from the kitchen window.
Plenty of Cardiff decks were put up quickly a decade or two ago, and a sound frame can often take new boards rather than a full rebuild.
Many walled back gardens behind Cardiff terraces are concrete from wall to wall, laid years ago and now cracked, patched and uneven. Breaking all of that out creates a lot of rubble to carry away, and in a house with no rear lane every bag of it goes through the hall. A low deck built over the top is often the tidier answer, provided rain can still find its way to the drain underneath. Our guide on building decking over an old patio or concrete explains when the old surface can stay.
In a yard this size, the frame has to stay below the damp-proof course at the house and leave room at any gully or manhole so it can still be lifted. A removable hatch in the boards is a simple way to do that. We also plan around the bins, the washing line and the route to the back gate, because those everyday things take up real space. For ideas on the whole yard, read making the most of a small Cardiff terrace garden.
High garden walls, extensions next door and tall city trees mean a lot of Cardiff decks spend much of the day in shade. That is the main reason people here ask about composite boards: they cope with damp far better than timber and will not rot or splinter. Our local article, composite decking for a Cardiff garden: is it worth it?, weighs up the higher starting cost against the lower upkeep.
Whichever board you choose, a shaded deck needs a gap between boards, air under the frame and a brush every few weeks to keep algae down. Grooved or textured boards help on the route from the back door. There is a simple routine in how to stop decking going slippery. If you want more privacy from overlooking windows, slatted screening can sit along one edge, and we can fit new fencing in Cardiff at the same time.
City gardens bring their own problems. This is how we handle them.
Long boards, narrow halls and busy streets are worked out at the visit, so there are no surprises on the first morning.
If your yard gets little sun, we will tell you how timber is likely to behave there and whether composite is worth the extra.
Gullies and inspection covers stay accessible through hatches, so a deck never hides something you might need later.
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Decking is lighter work to get into a city garden than paving, which is one reason it suits Cardiff so well. Boards and joists come in long lengths, though, so we check the turn through the hall and any narrow side passage before anything is ordered. Where there is a lane at the back, deliveries go that way. Where there is not, we protect floors and door frames and keep the route clean.
Parking can be tight in many streets, so we plan deliveries for when we are ready to use the timber rather than leaving it stacked on the pavement. Offcuts and packaging leave with us at the end of the job.
In the interwar semis and on the newer estates at the edge of Cardiff, the garden is usually big enough to choose where the deck goes. Straight off the back doors is the obvious spot, but the sunniest corner is often at the far end, and a deck there with a path back to the house can be the part of the garden you use most. On new-build plots we often find compacted builders' spoil just under the turf, which we dig out so the footings sit on firm ground.
A larger deck is also a good moment to think about lighting, planters and finishing touches, or about linking it to a new patio in Cardiff so the garden works as one.
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“Had my patio done by the company and could not be happier. Top quality work done and quickly too.”
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“We were delighted with the work and materials, which were of very high quality. Tony and team helped us.”
Local and practical guides to help you plan the work.
One team for the whole garden, so a single visit can price everything you have in mind.
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T J Landscapes South Wales
24 Conway Road, Pontypool
Torfaen, NP4 6HL
We cover homes right across South Wales, from Cardiff and the coast up to the valleys and the Brecon Beacons.
Yes. We carry the timber through the house with floors and doorways protected, after checking that long boards can make the turn. It takes a little longer, and we allow for that in the quote.
Often it can, as long as the concrete is reasonably stable and water can still drain away underneath. We keep drains reachable and the deck below the damp-proof course.
In deep shade composite usually makes more sense, because timber that stays damp needs more cleaning and treatment. In a sunny suburban garden, timber is a good, lower-cost choice. See how long garden decking should last.
The size of the deck, its height, the boards, whether old concrete or a tired deck has to come out, and how easy it is to get materials in. We give a free quote after seeing the garden.
Most low decks do not, but raised decks, decks near a boundary and work in conservation areas can. Please check with Cardiff Council before building anything tall.
Tell us which part of Cardiff you are in, roughly how big the space is and whether there is rear access. Photos of the yard help us plan.