Underground tank leak detection for villas in Al Kndra, Jeddah

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

Why underground tank leak detection differs in Al Kndra

The centre of Al Kndra is at 21.4929, 39.2019, about 6.4 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. Main roads in or near Al Kndra: King Fahd Road, King Khalid Street, Old Makkah Road.

The centre of Al Kndra sits about 19 m above sea level (SRTM open elevation data). Al Kndra is about 1.7 km from the sea coast (OpenStreetMap).

Are underground tanks in Al Kndra, Jeddah, really at risk from leaks, given how close the area lies to the sea? Property owners here often ask this, and the answer starts with location. The centre of Al Kndra sits at 21.4929, 39.2019, about 6.4 km from the centre of Jeddah, with an approximate radius of 1.2 km. The centre sits about 19 m above sea level, and the area is about 1.7 km from the sea coast. Those facts matter because a villa's buried water or fuel tank is exposed to the same coastal conditions as everything around it, so checking it on a regular basis is a sensible habit rather than a reaction to a problem.

The inspection follows a set order. The technician first reviews the tank's location, age and the way it is connected to pipework, then checks the visible access points and the surrounding ground for signs of moisture or staining. Next comes the leak detection test itself, which looks for any loss of contents over a set period and for any change in the tank's condition. If the tank's inner surface is found to be worn, the technician records the area that would need treatment. For reference, internal coating is priced at SAR 25–65 per m², so the size of the affected surface is one of the first things a quote will depend on. The findings are then written up so you can see exactly what was tested and what was found.

Before the visit, gather what helps the technician work efficiently. Find any installation records, the date the tank was fitted, and any earlier repair or cleaning reports. Clear the access points so the cover, valves and inspection ports can be reached without moving furniture or garden fittings. Note any changes you have seen, such as a drop in tank level without clear use, damp patches near the tank, or a smell around the ground. Confirm who will be at the property during the visit and who should receive the written report. Having these details ready means the inspection can focus on the tank itself and give you clear answers.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

When do you need underground tank leak detection?

These are the signs most often linked to underground tank leak detection:

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

The most common causes

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

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.

Facts and costs — Al Kndra

Common questions about underground tank leak detection in Al Kndra

Mistakes that cost more

• 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.