Hidden water leak detection for residential buildings in Al Rwasy, Jeddah

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

Before we start: what we know about Al Rwasy

The centre of Al Rwasy is at 21.6877, 39.2796, about 19.5 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. The nearest wadi channel is about 1.8 km from the centre of Al Rwasy (OpenStreetMap).

Al Rwasy is about 10.2 km from the sea coast (OpenStreetMap). The centre of Al Rwasy sits about 116 m above sea level (SRTM open elevation data).

Hidden water leak detection in Al Rwasy starts with the place itself. The centre of Al Rwasy sits at 21.6877, 39.2796, about 19.5 km from the centre of Jeddah, with an approximate radius of 1.2 km, and it lies roughly 116 m above sea level. Because the area is about 10.2 km from the sea coast, a technician should expect a dry, inland pattern of water use, where storage tanks and rooftop supply lines often carry much of the load. The nearest wadi channel is about 1.8 km from the centre of Al Rwasy, so it is worth noting how run-off and the local slope may affect ground moisture around foundations and external pipework. These location facts help the first checks focus on tanks, rooftop connections and the ground beside the building.

What is left to the site visit is the work that cannot be judged from a map. The technician should confirm the actual route of each supply and drainage line inside the walls, listen for pressure changes, and check the floors and ceilings where staining or soft patches suggest water is escaping. The visit is also the right time to inspect the condition of any storage tank, including its internal coating. Tank internal coating is priced at SAR 25–65 per m², and the final figure depends on the surface area measured on site and the type of coating chosen, so the technician should measure the tank and record its condition before any quote is discussed. Decisions about opening walls or floors should be made only after the readings are taken.

Information that helps the technician includes the age of the building, the layout of the water tanks and pumps, any past repairs, and the places where residents have noticed damp, odours or unexplained meter movement. Access to the roof, the plant area and the ground floor should be arranged before the visit, so that the inspection can move from tanks to pipes to walls without delay. Notes on which rooms are used most often, and whether the building has a shared supply or individual units, also shape how the leak search is planned. Clear records make the result easier to follow for the owner and for the residents who share the building.

For a residential building, shared risers, tanks and pumps are checked as one system.

Signs worth paying attention to

The following signs are worth checking before they grow:

• 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 meter keeps turning with every tap closed
• A water bill higher than usual with no change in use

Causes we see in the field

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

Tools we use in Al Rwasy

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.

Al Rwasy in facts and sources

Common questions about hidden water leak detection in Al Rwasy

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.