Water tank waterproofing in Sharurah: cost & published offers

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

Before we start: what we know about Sharurah

The centre of Sharurah sits about 724 m above sea level (SRTM open elevation data). Main roads in or near Sharurah: King Abdulaziz Road, King Fahd Road.

Team note on Sharurah: 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..

The centre of Sharurah sits about 724 m above sea level, according to SRTM open elevation data. That height places the town on higher ground than many coastal and lowland parts of the Kingdom, and it shapes how water moves around a property. Rain that falls on rooftops and yards tends to run off quickly rather than pool, so the surfaces that matter most are the ones that hold water in place: tanks, roofs, and the walls and floors of bathrooms and basements.

Because water in an elevated town is usually stored on the roof or in a tank rather than pumped from below, the tank and the roof membrane carry more of the day-to-day load. A tank that is coated on the inside protects the water it holds, and a roof that is sealed with a liquid membrane or bitumen layer keeps the structure below dry. Published ranges for these services are SAR 25–60 per m² for tank internal coating, SAR 8–25 per m² for liquid roof waterproofing, and SAR 15–35 per m² for bitumen membrane. Owners comparing quotes should check the surface area being quoted, since a tank or roof measured in square metres can differ noticeably from the footprint of the building.

Owners in Sharurah commonly make a few avoidable errors. Many wait until a leak appears before calling anyone, when a crack that is still small can be treated with crack injection at SAR 40–120 per metre. Others choose the lowest figure in a range without asking what is included, such as surface preparation, which affects how long the coating lasts. Some skip cleaning and drying the surface before work starts, and others forget that bathroom waterproofing at SAR 15–40 per m² and basement waterproofing at SAR 50–150 per m² are priced differently because the conditions differ. Asking for a written breakdown of each item before agreeing to the work helps avoid these problems.

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

Signs that call for water tank waterproofing

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

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

Where the problem usually comes from

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

Tools we use in Sharurah

The steps in order

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.

Sharurah in facts and sources

Short answers for Sharurah

What we advise against

• 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.