Garden drainage guide

Show where the water
actually goes.

A drainage enquiry is clearer when it explains the route of the water: where it appears, where it gathers, what is uphill or downhill and which hard surfaces or drains are nearby.

“The garden floods” can describe many different situations. Water may collect in one low point, run from a higher surface, sit against paving or appear after prolonged rain. The starting point is to understand the pattern rather than guess a solution from one dry-day photo.

Describe when the problem happens

Explain whether the water appears after every shower, only after prolonged rainfall, or mainly when another surface drains toward the area. Timing helps distinguish a local low point from a wider water-movement issue.

Photograph the wider levels

One close-up of a puddle does not show enough context. Include the house, patio, lawn, path, boundary and any visible drains or channels in wider photographs so the relationship between surfaces is easier to understand.

Where it startsNote the first place water appears or enters the area.
Where it collectsShow low spots, edges and any repeated standing-water areas.
Nearby hard surfacesInclude patios, paths, driveways, walls and thresholds.
Existing drainagePhotograph gullies, channels, downpipes or visible outlets nearby.

Do not assume one drainage product fits every garden

The right approach depends on the actual site, levels, ground and where water can reasonably be managed. That is why GEM avoids promising a standard solution before the problem has been seen in context.

Water needs somewhere sensible to go.

A channel or excavation is not a complete plan on its own. The destination and surrounding levels matter too.

Think about connected surfaces

Drainage and paving often affect one another. If water is collecting beside a patio, path, base or entrance, it may be useful to discuss the whole relationship rather than treating the wet patch as an isolated feature.

Useful details for a drainage enquiry

  • A wide view of the garden or affected surface.
  • Photos from more than one direction so levels make sense.
  • Photos during or after rainfall when safe and practical.
  • A note explaining where water seems to come from and where it travels.
  • Approximate dimensions of the affected area and any nearby drains or thresholds.

Questions people often ask

Can drainage be assessed from photos alone?

Photos are useful for the first conversation, but the correct approach may still depend on site inspection, levels and ground conditions.

Is standing water always a drainage-system problem?

Not necessarily. Surface falls, low points, soil condition and runoff from neighbouring areas can all influence what you see.

Can drainage be planned with a new patio?

Yes. It is often sensible to consider water movement while planning new hard landscaping so the finished layout works as one system.