Hidden water leak detection for duplexes in Al Andls, Makkah

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

What is specific about Al Andls for hidden water leak detection

The centre of Al Andls is at 21.4475, 39.8259, about 7.3 km from the centre of Makkah, with an approximate radius of 1.2 km. The approximate area shown on the map is centred here. Main roads in or near Al Andls: Third Ring Road, Al Hajoon Street, Al Abtah.

The centre of Al Andls sits about 324 m above sea level (SRTM open elevation data).

Al Andls sits at 21.4475, 39.8259, about 7.3 km from the centre of Makkah, and its built area has an approximate radius of 1.2 km. That combination describes a neighbourhood that is close enough to the city's core to feel its traffic and density, yet set apart enough that many duplexes stand on their own plots with separate supply lines. For a leak detection service, this matters because a leak in a shared or older line can be traced more quickly when the pipe runs are short and the property boundaries are clear. Technicians working here should plan each visit around the single building, not the wider district.

The centre of Al Andls sits about 324 m above sea level, according to SRTM open elevation data. Elevation shapes how water moves through a building. A duplex at this height depends on the storage tank and pump arrangement to keep pressure steady across both units, so a small drop in tank level or a sudden change in pressure can point to a hidden leak in a supply line rather than a fault in the fixtures. Our inspections therefore begin with a check of the tank and the pressure readings at each floor before any wall or floor is opened.

Tank internal coating is priced at SAR 25–65 per m², and this cost is one reason owners ask us to look at the tank during a leak survey. A failing coating can flake and allow water to seep through the tank base or walls, which mimics a supply leak and wastes money if repaired in the wrong place. Owners in Al Andls often try to fix the visible symptoms first, such as patching a damp wall or replacing a tap washer, and then discover the water loss continues. We recommend confirming the source before any repair is booked. Other common mistakes include ignoring a slow rise in the water meter reading, assuming a damp patch must come from the floor above, and waiting until the ceiling stains spread before calling for help.

In a duplex, the two floors often share lines, so tests are done floor by floor.

Signs that call for hidden water leak detection

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

• 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

The most common causes

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

Tools and methods, and when we use them

From the first visit to the report

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.

Facts and costs — Al Andls

Short answers for Al Andls

What we advise against

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

What you get after the work

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