Hidden water leak detection for warehouses in Al Hda, Jeddah

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Before we start: what we know about Al Hda

The centre of Al Hda is at 21.3730, 39.3020, about 23.2 km from the centre of Jeddah, with an approximate radius of 1.2 km. The service-area circle on the map below is drawn from this point. Al Hda is about 12.3 km from the sea coast (OpenStreetMap).

The centre of Al Hda sits about 79 m above sea level (SRTM open elevation data). The nearest wadi channel is about 2.3 km from the centre of Al Hda (OpenStreetMap).

Al Hda sits at about 21.3730, 39.3020, roughly 23.2 km from the centre of Jeddah, with an approximate radius of 1.2 km. That places it well outside the dense city core, where warehouses tend to be larger, more spread out, and set back from busy streets. For a leak survey, this matters because access routes, yard layouts and pipe runs are usually longer and less uniform than in older districts, so a survey plan has to start with a full site walk rather than assuming standard building layouts.

The ground here is about 79 m above sea level, and the sea coast is roughly 12.3 km away. Elevation affects water pressure and pump behaviour in buried supply lines, so pressure readings taken at a warehouse here are compared against the expected pressure for its height rather than against a generic figure. The distance from the coast also means the surrounding soil and groundwater are not shaped by saltwater intrusion in the way that near-shore plots can be, which helps us focus the survey on mechanical faults in joints, valves and tanks rather than on corrosion caused by the surrounding environment alone. The nearest wadi channel lies about 2.3 km from the centre of Al Hda, so flash-flood runoff and shifting ground after rain can disturb buried pipework, and we check for movement and washout at trench crossings after heavy weather.

Owners in this area often make the same few mistakes, and most of them are avoidable. The first is waiting for a visible puddle before calling anyone, when hidden leaks may run for weeks under concrete or yard surfaces. The second is treating a water tank as sound because the outside looks dry, without checking the internal coating, which can be costed at SAR 25–65 per m² when it needs renewing. The third is repairing a single leak without re-testing the rest of the line, which tends to leave a second fault undetected. A structured survey, with pressure checks, acoustic listening and a documented map of the findings, prevents all three.

For warehouses, work is phased around operations and stored goods.

Signs worth paying attention to

The following signs are worth checking before they grow:

• The meter keeps turning with every tap closed
• A water bill higher than usual with no change in use
• A damp patch that slowly grows on a wall or ceiling
• A hissing or trickling sound in the wall after the taps are off

Where the problem usually comes from

• A common cause: a corroded joint inside a wall.
• A cracked pipe under floor tiles.
• A common cause: a hot line that expands and contracts with use.

Tools we use in Al Hda

How the work is done, step by step

1. Meter test: We stop all use and watch the meter to confirm whether water is actually being lost.
2. Line isolation: We close valves one line at a time to see which line loses pressure.
3. Acoustic listening: We follow the sound of water escaping under pressure and compare its strength between points.
4. Thermal imaging and moisture mapping: We map how far the wet area spreads behind paint and tiles.
5. Documentation: Readings, photos and the likely position go into a written report.

Al Hda in facts and sources

Questions from Al Hda

What we advise against

• Repainting the stain while the moisture keeps coming back
• Breaking tiles at random before the line is identified

What you receive

You receive: a technical report with the readings, the likely leak position and a confidence level, in a technical report with a verification code.