Water tank waterproofing in Al Azyzya, Riyadh: without breaking

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

What is specific about Al Azyzya for water tank waterproofing

The centre of Al Azyzya is at 24.5877, 46.7701, about 17 km from the centre of Riyadh, with an approximate radius of 3 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Azyzya: Southern Ring Road, Southern Ring Road, Al-Kharj.

The centre of Al Azyzya sits about 589 m above sea level (SRTM open elevation data).

Water tanks on rooftops in Al Azyzya, Riyadh, are most often affected by leaks at the joints and seams where the tank meets its base and walls, and by cracks that open up as the concrete and steel move with daily temperature swings. Over time these small openings let water seep into the structure, staining the walls below and weakening the surface. The usual first sign is damp patches or flaking paint in the rooms underneath, which is why a careful check of the tank's internal surface is the starting point for any repair, not a guess at where the water is coming from.

Local conditions shape how the work is done. The centre of Al Azyzya sits at 24.5877, 46.7701, about 17 km from the centre of Riyadh, within an approximate radius of 3 km, and it lies about 589 m above sea level. Strong sun and dry heat push the tank surface through repeated expansion and contraction, so the repair must bond well to existing concrete and hold its flexibility. For a tank interior, the typical rate for tank internal coating is SAR 25–65 per m², and for crack repair, crack injection is priced at SAR 40–125 per metre. Where the roof itself is involved, liquid roof waterproofing runs at SAR 10–25 per m², while spray foam is SAR 20–45 per m² and XPS boards are SAR 15–30 per m². The right choice depends on what the inspection shows rather than a single standard fix.

Before the visit, ask the provider to confirm the tank's size and material, where the leak appears to start, and whether the tank must be emptied and for how long it will be out of use. Ask which system they propose, why it suits the surface, and how the quote is calculated per square metre or per metre of crack. Request a written breakdown so you can compare the scope with the price ranges above. Clear answers on these points make the job easier to plan and reduce surprises once work begins.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

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

The most common causes

• Cracks in the walls or floor.
• Damaged old coating — we check this before anything else.
• A common cause: construction joints.

How we choose the tool in Al Azyzya

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 Azyzya

Questions from Al Azyzya

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.