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

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

Why underground tank leak detection differs in Al Mnar

The centre of Al Mnar is at 24.7251, 46.7976, about 12.4 km from the centre of Riyadh, 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 Mnar: Kharais Road, Kharais Sub Road, Imam Ahmad bin Hanbal Street.

The centre of Al Mnar sits about 602 m above sea level (SRTM open elevation data).

Al Mnar is a residential district in Riyadh, centred at 24.7251, 46.7976, about 12.4 km from the centre of Riyadh, with an approximate radius of 1.2 km. That position matters for leak detection work. Because the district sits well outside the city core, crews travel a longer route from the main depots, so a visit is best planned as a single scheduled trip rather than a quick call-out. Owners who want the inspection and any follow-up repair completed in one visit should tell us the tank's location and access points when booking, so the team arrives with the right testing gear.

The centre of Al Mnar sits about 602 m above sea level, according to SRTM open elevation data. Elevation influences how groundwater and surface runoff move through the soil around a buried tank, and so it shapes what a leak test can tell you. Rather than assuming the ground is uniform, the inspection looks at how water is likely to collect and drain near the tank, and the report notes any pooling or wet patches that could hide a slow loss. Owners should not dismiss a small wet spot after rain, because it can point to a seam or fitting that needs attention.

Tank internal coating is quoted at SAR 25–65 per m², and this range is the main variable when a repair is recommended. The final figure depends on the surface area that needs recoating and the condition of the existing lining, so the first step is always the inspection, which tells you exactly how much work is involved before any coating is agreed. Ask for the measured area in writing, and compare quotes on the same basis. Avoid choosing purely on the lowest rate, since a thin or poorly prepared coat can fail early and bring the leak back.

Common mistakes owners make in Al Mnar include waiting for a strong fuel smell before testing, treating a monthly stock drop as normal, and repairing only the visible spot without checking the rest of the tank. Owners also often skip recording the tank's age and previous work, which makes it harder to judge whether a fault is new. Start with a scheduled test, keep stock records, and book the inspection early so a small problem does not become an expensive excavation.

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

The following signs are worth checking before they grow:

• Damp or salt marks on the tiles above the tank
• The tank needs refilling faster than usual
• The pump runs for longer periods

Where the problem usually comes from

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

Tools and methods, and when we use them

How the work is done, step by step

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 Al Mnar

Short answers for Al Mnar

Mistakes that cost more

• 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.