Two heavy downpours in Madinah expose every weakness in your villa: standing water at the entrance, damp on the majlis wall, and courtyard tiles loosening from below. Most of it is preventable with proper drainage.

This guide from Qadat Al-Tashyeed - BLC covers slopes, gutters, drains, mistakes, and 2026 costs.

Why Drainage Is a Real Problem in Madinah

Madinah does not rain often, but when it rains, it pours. Short, intense downpours dump huge volumes onto your roof and courtyard at once.

Standing water seeps under tiles, destabilises soil, and shows up as damp indoors — and fixing that costs far more than proper drainage.

The Complete System: 5 Elements That Work Together

  • Roof gutters: carry roof water down away from the walls, never onto the courtyard.
  • Slopes: a gradient directing water to the drains without feeling tilted.
  • Floor drains and linear channels: heavy-duty drains at low points, entrances, and gates.
  • Waterproofing: insulation and waterproofing stop water from soaking indoors, especially on the ground floor.
  • A safe final outlet: a discharge point to the street, a tank, or a soakaway.

Slopes: The Most Important Number

The correct courtyard slope is usually 1% to 2% towards the drains — a drop of 1 to 2 cm per metre — enough to move water without you noticing it underfoot. Less, and water stands still; more, and the floor feels uncomfortable.

Door thresholds must sit higher than the courtyard, and the gate needs a transverse drain intercepting street water.

5 Mistakes That Cost You After the First Heavy Rain

  • Gutters discharging onto the courtyard: roof pipes ending above the paving flood the area with every storm.
  • One drain for a whole courtyard: a courtyard needs several distributed drains; one blocked drain can flood it all.
  • Ignoring street level: if your courtyard sits lower than the street, flood water enters through the gate — fix it with a raised threshold and transverse drain.
  • Missing waterproofing where wall meets ground: the most common damp entry point.
  • Drains with no maintenance: clean drains and gutters before every rainy season; most flooding comes from a blockage ten minutes of cleaning would prevent.

Read our guide on roof insulation in Madinah, since undrained roof water is the first source of ceiling leaks.

Existing Villa? Improve Drainage Without Major Demolition

  1. Diagnose first: watch your villa during rain and pinpoint where water collects.
  2. Add a linear drain at entrances: a channel in front of the entrance and gate.
  3. Redirect the gutters: extend gutter pipes to the drains or outside the courtyard.
  4. Fix low spots: localised re-levelling in the pooling area only.
  5. Waterproof the lower walls: remedial finishing works with waterproofing stop rising damp.

Our engineering consultancy team inspects your system and prioritises urgent fixes.

What Does It Cost in 2026?

  • Drain and gutter cleaning: around SAR 500 – 1,500 per villa.
  • Linear drain at an entrance or gate: around SAR 2,500 – 6,000, supplied and installed.
  • Re-levelling and waterproofing a pooling area: around SAR 5,000 – 15,000.
  • Complete system for a new villa: within general contracting works, typically SAR 15,000 – 40,000.

Annual maintenance under SAR 1,500 can protect you from damp and leak repairs exceeding SAR 20,000.

Conclusion: A Dry Villa = Good Drainage + Annual Maintenance

Water shows no mercy: either you direct it with a slope, a drain, and a clear outlet, or it finds the weakest point in your villa. Design drainage before finishing if building; clean and inspect before every rainy season otherwise.

For a complete pre-rain plan, see our preventive maintenance guide for Madinah villas. Request your free consultation now.