Underground tank leak detection in Al Mlqa, Riyadh: cost & published offers

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

Before we start: what we know about Al Mlqa

The centre of Al Mlqa is at 24.8010, 46.6007, about 12.3 km from the centre of Riyadh, with an approximate radius of 4.4 km. The service-area circle on the map below is drawn from this point. The nearest wadi channel is about 2.7 km from the centre of Al Mlqa (OpenStreetMap).

Main roads in or near Al Mlqa: King Fahd Road, King Salman Road, Anas bin Malik Street. The centre of Al Mlqa sits about 666 m above sea level (SRTM open elevation data).

Al Mlqa is mainly villas.

Picture the owner of a villa in Al Mlqa who has a buried fuel or water tank serving a generator, a pump, or a garden irrigation line. Nothing shows on the surface, yet the owner starts noticing that the level drops faster than usage explains, or a damp patch appears on the lawn near the pump room. Such owners rarely know where to begin, and they want an honest picture of what checking the tank involves before committing to any work.

Al Mlqa is mainly villas, so a buried tank here usually sits close to living space, gardens, and driveways, which makes a slow leak both a cost problem and a safety question. The centre of the district sits at about 666 m above sea level, and the nearest wadi channel is roughly 2.7 km from the centre, so ground conditions and drainage paths can differ from one plot to the next. Because the district is about 12.3 km from the centre of Riyadh, owners often rely on local contractors for site visits, which makes it sensible to ask in advance how the work will be scoped. For tanks that need internal repair, the pricing reference to keep in mind is tank internal coating at SAR 25–65 per m², so the surface area of the tank is the figure that drives the quote.

A practical sequence starts with recording the tank's level and your consumption over several days so you can tell whether the loss is real. Next, check the pipework, valves, and the pump room for wet areas, and note where any damp ground appears. Then arrange a leak test on the tank and its lines, and ask the inspector to measure the tank's internal surface so the coating estimate can be based on actual area. Finally, compare written quotes that state the scope, the method, and the coating rate, and only then decide whether repair or replacement makes more sense for your villa.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs that call for underground tank leak detection

If you notice one of these signs in Al Mlqa, it is a good moment to talk to the team:

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

Causes we see in the field

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

How we choose the tool in Al Mlqa

From the first visit to the report

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.

Al Mlqa in facts and sources

Questions from Al Mlqa

What we advise against

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

What you get after the work

The written output: the written level-test result and the recommended next step. The report is numbered and can be checked with its verification code.