Water tank waterproofing in Sharurah: before buying or handover

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

Why water tank waterproofing differs in Sharurah

Main roads in or near Sharurah: King Abdulaziz Road, King Fahd Road. The centre of Sharurah sits about 724 m above sea level (SRTM open elevation data).

Team note on Sharurah: 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..

Picture an owner in Sharurah who has just found a rooftop water tank on a house they are about to buy, or who is taking over a property from a family member. The tank has been in place for years, the seller says it is fine, and the owner wants to know whether it needs attention before the keys change hands. Most people in this position have little experience with tank linings and no easy way to see what lies behind the paint or the concrete.

The centre of Sharurah sits about 724 m above sea level (SRTM open elevation data), and that height matters for a tank. A property at this elevation is not a place where a tank can be assumed to be dry and sound simply because it looks clean from the outside. Cracks and leaks in a tank usually start small and go unnoticed, so the seller's word counts for less than an inspection. Because the tank may sit on a roof or beside a wall, leaks can also seep into the structure below, which is why a buyer should treat the tank as part of the building rather than a separate item.

Before buying or accepting handover, work through the steps in order. First, look at the tank inside and out for cracks, peeling coating, and damp patches on the walls and roof slab; crack injection is priced per metre at SAR 40–120 per m, so measure any cracks you find. Second, check the lining itself. Tank internal coating costs SAR 25–60 per m², so ask for the area to be measured and get a written quote before agreeing a price. Third, if the roof above the tank shows ponding or staining, compare the options: liquid roof waterproofing at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², or XPS boards at SAR 12–30 per m². Fourth, make any repair work a condition of the sale or agree on who pays before handover. Finally, ask for the tank to be refilled and watched for a day, because a slow leak often shows itself only after the water has been standing for some time.

Before buying or taking over a property, an inspection gives you findings in writing before you sign.

Signs that call for water tank waterproofing

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

• Deposits and flaking inside the tank
• A tank that leaks after testing
• Unusual colour or taste in the water

Where the problem usually comes from

• Cracks in the walls or floor.
• Damaged old coating.
• Construction joints — we check this before anything else.

Tools and methods, and when we use them

From the first visit to the report

1. Emptying and ventilation: The tank is emptied and ventilated before entry.
2. Cleaning and preparation: Loose material is removed down to a sound surface.
3. Crack treatment: Active cracks are treated first.
4. Coating layers: A material intended for drinking-water tanks is applied.
5. Disinfection and fill test: The tank is disinfected and the level is monitored after filling.

Facts and costs — Sharurah

Questions from Sharurah

What we advise against

• Using a material that is not intended for drinking water

What you get after the work

You receive: the material name, its batch number and the fill-test result, in a technical report with a verification code.