Water tank waterproofing in Al Wzarat, Riyadh: cost & published offers

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

What is specific about Al Wzarat for water tank waterproofing

The centre of Al Wzarat is at 24.6769, 46.7135, about 5.6 km from the centre of Riyadh, with an approximate radius of 1.6 km. The service-area circle on the map below is drawn from this point. The centre of Al Wzarat sits about 602 m above sea level (SRTM open elevation data).

Main roads in or near Al Wzarat: Makkah Road, King Saud Road, Prince Abdulaziz bin Musaed bin Jalawi Road.

Before any quote is given for a water tank in Al Wzarat, the first thing to check is the location itself. The centre of Al Wzarat sits at 24.6769, 46.7135, about 5.6 km from the centre of Riyadh, and its approximate radius is 1.6 km. The area also lies about 602 m above sea level, according to SRTM open elevation data. These facts matter because the site's position and height shape how a tank is exposed to sun, wind and rain, so the technician will note the tank's orientation and whether it sits on a roof or at ground level before anything else is decided.

Several points can only be settled at the site visit. The technician must see the actual tank, its wall condition, the presence of any cracks, and how the tank is joined to the roof and pipework. Whether the tank is concrete, steel or another material, and whether the inside or outside needs treatment, will also be confirmed on arrival. Access, the size of the tank and any existing old membrane that must be removed are likewise judged in person. Published rates give a starting point only, and the final scope depends on what the visit reveals.

To help the technician prepare, it is useful to note the tank's approximate dimensions, its age, and any past leaks or repairs. Photographs of the tank's walls, lid and roof area, along with the location of the water supply and overflow pipes, speed up the visit. For reference, published ranges in Saudi riyals include tank internal coating at SAR 25–65 per m², crack injection at SAR 40–125 per m, epoxy coating at SAR 35–95 per m², and liquid roof waterproofing at SAR 10–25 per m². Bitumen membrane runs at SAR 15–35 per m², and XPS boards at SAR 15–30 per m². Knowing which treatment is likely lets the technician bring the right materials.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs worth paying attention to

These are the signs most often linked to water tank waterproofing:

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

Causes we see in the field

• A common cause: construction joints.
• A common cause: damaged old coating.
• A common cause: cracks in the walls or floor.

Tools we use in Al Wzarat

How the work is done, step by step

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 Al Wzarat

Questions from Al Wzarat

Common mistakes we see

• Using a material that is not intended for drinking water

The written outputs

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