Underground tank leak detection for residential buildings in Shbra, Riyadh

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

Why underground tank leak detection differs in Shbra

The centre of Shbra is at 24.5749, 46.6671, about 15.5 km from the centre of Riyadh, with an approximate radius of 3.3 km. The service-area circle on the map below is drawn from this point. Shbra has both villas and apartment buildings.

The centre of Shbra sits about 651 m above sea level (SRTM open elevation data). Main roads in or near Shbra: Southern Ring Road, Aisha bint Abi Bakr Street, Al Suwaidi Tunnel.

The nearest wadi channel is about 1.1 km from the centre of Shbra (OpenStreetMap).

Underground tank leaks in residential buildings most often start small and go unnoticed: a slow seepage at a joint, a cracked fitting, or corrosion on an older steel tank that gradually lets water escape into the surrounding soil. Many households only realise there is a problem when the water pump runs more often than usual, when a damp patch appears on a wall near the tank, or when the monthly water bill rises without a clear reason. In a residential block, a leak that goes unchecked can affect shared walls, parking areas and the foundations of several units at once, so early detection matters more than it does for a single villa.

In Shbra the approach has to account for the area itself. The centre of Shbra sits at 24.5749, 46.6671, about 15.5 km from the centre of Riyadh, with an approximate radius of 3.3 km, so many properties sit on a mix of older and newer development. Shbra has both villas and apartment buildings, which means the inspection plan differs: a villa usually has one tank that can be tested in isolation, while an apartment building may have shared tanks serving several flats, and the leak may be hard to trace without checking each connection. The centre of Shbra sits about 651 m above sea level (SRTM open elevation data), and the nearest wadi channel is about 1.1 km from the centre of Shbra (OpenStreetMap). Because of this nearby drainage channel, the technician should pay attention to ground moisture and how water moves through the soil around the tank, not only to the tank itself. Where a coating repair is needed, internal tank coating is priced at SAR 25–70 per m², and the final figure depends on the tank's size and condition.

Before the visit, ask the provider a few clear questions. Ask whether they will check both the tank and the pipework to the building, and whether they can tell you if the building is a villa or an apartment block so the right equipment is brought. Ask how they will confirm a leak, and whether they will show you the results before any repair starts. Ask for the coating rate in writing, including how the area will be measured, and whether the figure covers preparation and cleaning. Finally, ask who will be on site, how long they expect the visit to take, and what you should do with water use in the meantime. A clear answer to each of these will help you judge the service before any work begins.

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

When do you need underground tank leak detection?

The following signs are worth checking before they grow:

• The tank needs refilling faster than usual
• Damp or salt marks on the tiles above the tank
• A noticeable drop in the water level overnight
• The pump runs for longer periods

The most common causes

• Construction joints and corners — we check this before anything else.
• Cracks in the concrete tank walls or floor.
• A common cause: a float valve that does not close, so water is wasted.

Tools and methods, and when we use them

The steps in order

1. Safety first: Tank lids and confined spaces are handled with ventilation and a second person on site.
2. Documented level test: Filling and use are stopped and the level is recorded against time.
3. Isolating the tank from the network: This tells us whether the loss is from the tank body or from the supply line.
4. Checking the body and connections: Inlet, outlet and overflow connections are inspected.
5. Recommendation: You get the next step in writing: repair, waterproofing or a line test.

Quick comparison: facts and costs in Shbra

Common questions about underground tank leak detection in Shbra

Common mistakes we see

• Waterproofing the tank before confirming the loss is from the tank and not the line
• Ignoring the float valve

The written outputs

You receive: the written level-test result and the recommended next step, in a technical report with a verification code.