Underground tank leak detection for villas in Jeddah

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

Before we start: what we know about Jeddah

Team note on Jeddah: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins.. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data).

Jeddah is about 2 km from the sea coast (OpenStreetMap).

Jeddah's villa neighborhoods sit on a coastal plain where groundwater and salt-laden soil can be a concern, and many homes rely on buried or semi-buried storage tanks for water supply. Because of this, leaks often show up first as moisture or soil changes around the tank rather than as visible water inside the house. The facts that fit this page are the questions homeowners ask about tanks: whether household chemicals can stand in for a technician, how a tank's inner lining differs from other insulation options, and whether heat-protection work can be added to an existing building. Only some of these apply directly here, so the focus stays on the tank itself.

For a villa tank, the first thing checked is the tank shell and its inlet, outlet and overflow connections, since these are the most common points where water escapes into surrounding ground. A technician will look at the tank's age, the level readings over time, and any damp patches in the adjacent soil or boundary walls. Detection tests are done before any repair decision is made, because the source of loss determines whether the tank needs local patching or a full inner lining. Interior lining, when needed, is priced by the square meter, usually in the range of 25 to 65 riyals per square meter after the detection is complete.

Before the visit, the customer should record the monthly water bills, note any unusual pump runtimes, and mark where damp or soft ground has appeared near the tank. It helps to clear access around the tank lid and have the property's tank drawings or installation date ready. Ask the team which tests they plan to run, how long the detection will take on site, and whether the results will include a written report that shows the exact leak location before any lining work is quoted.

Villas often have several lines and tanks; we test them one at a time so the cause is clear.

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

Where the problem usually comes from

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

How we choose the tool in Jeddah

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 Jeddah

Short answers for Jeddah

What we advise against

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

What you receive

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.