Good drainage is one of those things that's easy to overlook when planning a patio in Stourport-on-Severn, but it's genuinely one of the most important parts of the job. Get it wrong and problems tend to show up months or years later, by which point they're much harder to fix. SPR Paving builds drainage falls into every patio it lays as standard.
What happens when drainage is poor
A patio needs a slight fall, typically away from the house, so rainwater runs off the surface rather than sitting on it or, worse, pooling against the building. Standing water on the surface encourages algae and staining, and in winter it can freeze, making the paving slippery and increasing the risk of frost damage to the slabs themselves. If water is draining towards the house instead of away from it, it can find its way into damp courses or foundations, which is a far more serious and expensive problem than a patchy patio surface.
Poor drainage underneath the patio, rather than just on top of it, causes its own issues too. If the sub-base doesn't allow water to drain away properly, it can become waterlogged, and repeated freezing and thawing of that trapped water is one of the main causes of slabs cracking, lifting, or moving out of position over time.
How it's built in properly
A well-built patio is laid with a calculated fall, usually around 1 in 60 to 1 in 80, directing water towards a lawn, border, or dedicated drainage channel rather than a neighbouring property or the house wall. On heavier clay soils or in low-lying spots, additional measures like a soakaway or French drain may be needed alongside the fall itself. This is all planning that happens before a single slab is laid, which is why a proper site assessment matters so much at the start of a project.
Why it matters even more near the river
In a town like Stourport-on-Severn, with its riverside setting, ground water levels can sit higher than in areas further from the river, and gardens can already be dealing with naturally damper soil. That makes getting the fall and sub-base drainage right at the outset even more important, since a patio that struggles to shed water in these conditions will show problems, staining, slab movement, algae, far sooner than one built with proper drainage in mind from the start.
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