Hidden water leak detection for warehouses in Al Thghr, Jeddah

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

Before we start: what we know about Al Thghr

The centre of Al Thghr is at 21.4771, 39.2344, about 9.7 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. Main roads in or near Al Thghr: Prince Majed Road, Prince Majed - Al Sabeen, Prince Majed - Al Sabeen.

The centre of Al Thghr sits about 31 m above sea level (SRTM open elevation data). Al Thghr is about 5.3 km from the sea coast (OpenStreetMap).

Hidden water leaks in warehouses usually start where nobody looks every day: under concrete floor slabs, along buried supply lines, behind wall-mounted fixtures at the back of storage bays, and in the underground pipework that feeds fire-suppression and wash-down points. The most common sign is not a puddle but a quiet rise in the water meter reading, a damp patch on a slab that appears only after a cleaning cycle, or a sudden drop in tank levels that nobody can explain. By the time staff notice staining on stock or pallets, the water has often been travelling through the ground for weeks, so early detection makes a large difference to both repair cost and disruption to operations.

Al Thghr sits at roughly 31 m above sea level and about 5.3 km inland from the coast, a position that shapes how a leak investigation should be approached. Ground at this height and distance from the sea can carry a mix of soil conditions across a single site, so a technician should not assume that a slab behaves the same way from one bay to the next. Warehouses here are often built on sections of fill and re-levelled ground, which means buried lines may run at uneven depths. The centre of the district lies at 21.4771, 39.2344, about 9.7 km from the centre of Jeddah, with an approximate radius of 1.2 km, so travel time and access for emergency callouts should be planned in advance. For storage tanks, interior coating work is typically priced between SAR 25 and SAR 65 per m², and the surface area of the tank determines the scope, so a survey of the tank size should come before any quotation.

Before the visit, ask the provider which detection method they will use, such as acoustic listening, thermal imaging, or tracer gas, and whether they will test the tank, the buried supply lines and the slab separately. Confirm the exact location of the warehouse with its coordinates, note the age of the building and any previous repairs, and ask for a written record of the meter readings for the past three months if you have them. Request a clear statement of what will be opened or excavated, who will reinstate the floor afterwards, and how the findings will be reported. A well-prepared visit allows the team to focus on the likely leak paths rather than searching the whole site blindly.

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

When do you need hidden water leak detection?

These are the signs most often linked to hidden water leak detection:

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

Where the problem usually comes from

• A hot line that expands and contracts with use — we check this before anything else.
• A cracked pipe under floor tiles — we check this before anything else.
• A common cause: a corroded joint inside a wall.

How we choose the tool in Al Thghr

The steps in order

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.

Quick comparison: facts and costs in Al Thghr

Short answers for Al Thghr

Mistakes that cost more

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

What you get after the work

The written output: a technical report with the readings, the likely leak position and a confidence level. The report is numbered and can be checked with its verification code.