Water tank waterproofing for residential buildings in Al Yasmyn, Riyadh

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

Before we start: what we know about Al Yasmyn

The centre of Al Yasmyn is at 24.8169, 46.6361, about 12.2 km from the centre of Riyadh, with an approximate radius of 3.7 km. The service-area circle on the map below is drawn from this point. The centre of Al Yasmyn sits about 655 m above sea level (SRTM open elevation data).

Al Yasmyn has both villas and apartment buildings. The nearest wadi channel is about 2.1 km from the centre of Al Yasmyn (OpenStreetMap).

Main roads in or near Al Yasmyn: King Fahd Road, King Salman Road, Anas bin Malik Street.

Do rooftop water tanks in Al Yasmyn really need waterproofing, and how do you know when they do? The centre of Al Yasmyn sits at 24.8169, 46.6361, about 12.2 km from the centre of Riyadh, with an approximate radius of 3.7 km, and the area is home to both villas and apartment buildings. Whichever type of home you live in, a water tank is a part of the building that can quietly leak for a long time before anyone notices damp walls or a drop in pressure. Tank internal coating is priced at SAR 25–65 per m², so the cost of a proper inspection and repair is usually modest compared with the damage a slow leak can cause to the structure below.

The inspection starts with a visual check of the tank's internal surfaces, looking for cracks, flaking, or areas where the coating has lifted. The technician will look at the joints, the corners, and the connections to pipes, since these are common points of failure. Where cracks are found, crack injection is measured per metre at SAR 40–125 per metre, so the inspector will record the length of each defect to give you a clear estimate. The tank's internal surface area is then measured in square metres, which is the basis for pricing the coating work. Where the tank sits on a roof, the inspector will also check the roof surface, as liquid roof waterproofing is priced at SAR 10–25 per m² and bitumen membrane at SAR 15–35 per m², and a leak from the roof can look like a tank problem.

Before the visit, gather a few details so the inspection can be completed in one trip. Note the size of the tank if you know it, and where it is located, whether on the roof, at ground level, or in a basement or plant area. Tell the inspector about any damp patches, staining, or changes in water pressure you have noticed, and mention when the tank was last cleaned or repaired. Clear access to the tank lid and the roof hatch will save time. If the building has a basement, note any damp in that area too, because basement waterproofing is priced at SAR 55–160 per m² and is often assessed alongside the tank.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

When do you need water tank waterproofing?

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

• 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

• A common cause: cracks in the walls or floor.
• A common cause: damaged old coating.
• Construction joints — we check this before anything else.

How we choose the tool in Al Yasmyn

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 Al Yasmyn

Short answers for Al Yasmyn

Common mistakes we see

• 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.