Water tank waterproofing in Sabya: cost & published offers

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

Before we start: what we know about Sabya

The centre of Sabya sits about 40 m above sea level (SRTM open elevation data). Sabya is about 16.7 km from the sea coast (OpenStreetMap).

Team note on Sabya: 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.. Main roads in or near Sabya: King Fahd Road, King Abdulaziz Road, King Abdullah bin Abdulaziz Road.

An owner in Sabya often lives in a house with a rooftop or ground-level water tank that is filled from a municipal or private supply and holds water for daily use. Over time the tank walls and joints can develop hairline cracks, and the inside lining can wear away, so the owner notices a musty smell, discoloured water, or damp patches on the wall beside the tank. Many such owners only think about waterproofing once a leak has already started, when the cost of repair and the disruption to the household are both higher.

The location of Sabya shapes what these owners should expect. The centre of Sabya sits about 40 m above sea level (SRTM open elevation data), which means the town is not at coastal height and is not built on the low ground that collects water. Sabya is about 16.7 km from the sea coast (OpenStreetMap), so the salty sea air is less of a direct factor than it would be right on the shoreline, though the dry, hot conditions still stress sealants and coatings. For tank owners, this suggests that the main concern is thermal movement and surface wear rather than heavy groundwater pressure, so an internal tank coating is usually the most relevant line item. Published prices for that work fall within SAR 25–60 per m², while epoxy coating, a common option for lining, is listed at SAR 35–90 per m².

A sensible sequence starts with a full drain of the tank and a visual check of walls, base and joints for cracks and flaking. Next, small cracks can be addressed with crack injection, listed at SAR 40–120 per metre, before any surface work begins. The inside of the tank can then be prepared and coated, with the coating type chosen to suit the water use. If the tank sits on a roof, the surrounding roof area may also need liquid roof waterproofing at SAR 8–25 per m², and the owner should compare that with a bitumen membrane at SAR 15–35 per m². Finally, the owner should ask for written quotes that list the area measured, the materials and the scope, and should refill the tank only after the coating has fully cured.

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

When do you need water tank waterproofing?

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

The most common causes

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

How we choose the tool in Sabya

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.

Sabya in facts and sources

Questions from Sabya

Mistakes that cost more

• Using a material that is not intended for drinking water

What you receive

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