Water tank waterproofing for warehouses in Ghrnata, Riyadh

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

Why water tank waterproofing differs in Ghrnata

The centre of Ghrnata is at 24.7912, 46.7437, about 11 km from the centre of Riyadh, with an approximate radius of 2.8 km. The service-area circle on the map below is drawn from this point. Ghrnata is mainly villas.

The centre of Ghrnata sits about 617 m above sea level (SRTM open elevation data). Main roads in or near Ghrnata: Dammam Road, Eastern Ring Road, Eastern Ring Road.

Does a warehouse in Ghrnata really need its water tank waterproofed, and what does that cost? The area is mainly villas, sitting about 11 km from the centre of Riyadh with an approximate radius of 2.8 km, and it is one of the more residential districts close to the city. Water tanks on warehouse roofs and yards are often overlooked, yet a leaking tank can damage stored goods and the structure beneath it. Tank internal coating is priced at SAR 25–65 per m², so the first step is to understand the surface area that needs treatment before any work is scoped.

Our inspection starts with a visit to the site, where the technician checks the tank's condition, looks for cracks and failing old coatings, and notes where water is escaping. Because the centre of Ghrnata sits at about 617 m above sea level, sites here may have their own drainage and pressure patterns, and the inspector takes these into account when recommending a method. Where cracks are present, crack injection is quoted per metre at SAR 40–125 per m, and the inspector measures each crack run so the quote matches the actual length. Surfaces are then reviewed to decide between a coating, a membrane, or a combination of methods.

Before the visit, it helps to have a few things ready. Clear access to the tank and its surrounding roof or yard saves time on the day, and any records of past repairs or leaks are useful for the inspector. Note where you have seen water staining, damp patches, or a drop in water level, as these clues guide the inspection. Measure, or estimate, the tank's internal and external surface area, since the per-square-metre rates are used to build the figure. With these details prepared, the inspection can move straight to assessing the tank and giving you a clear picture of the work involved.

For warehouses, work is phased around operations and stored goods.

Signs worth paying attention to

The following signs are worth checking before they grow:

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

Causes we see in the field

• Damaged old coating.
• Cracks in the walls or floor.
• Construction joints.

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.

Quick comparison: facts and costs in Ghrnata

Common questions about water tank waterproofing in Ghrnata

Mistakes that cost more

• Using a material that is not intended for drinking water

The written outputs

The written output: the material name, its batch number and the fill-test result. The report is numbered and can be checked with its verification code.