Water tank waterproofing in Aldawadmi: for companies (annual contract)

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

Water tank waterproofing in Aldawadmi: the local context

Team note on Aldawadmi: 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 Aldawadmi: King Abdulaziz Road, Dawadmi Bujadiyah Road.

The centre of Aldawadmi sits about 976 m above sea level (SRTM open elevation data).

Picture a company that runs an office or small workshop in Aldawadmi and relies on a rooftop or ground-level water tank to keep its staff supplied. Over time the tank walls begin to show damp patches, flaking paint and a faint musty smell, and the manager starts to wonder whether the water is still safe to use. Like many business owners, they want the problem fixed without shutting the site for long, and they want the work done once rather than patched every season.

The local facts matter here. The centre of Aldawadmi sits about 976 m above sea level (SRTM open elevation data), so the site is on higher inland ground, and tanks there can see a wide swing between hot days and cooler nights. That temperature movement can open small cracks in concrete over time, which is why a company should not assume the tank is sound just because it looks intact. For tank work, tank internal coating is typically quoted at SAR 25–60 per m², which gives a sense of what a full internal refresh may involve once the surface area is measured.

A sensible sequence starts with a full drain and clean of the tank, followed by a careful inspection of walls, floor and joints so any crack is mapped. Cracks are then treated with crack injection, usually priced at SAR 40–120 per m, before the surface is prepared. The lining is applied next, with epoxy coating at SAR 35–90 per m² or an alternative system chosen to suit the water quality and the tank material. Finally, the coating is allowed to cure fully, the tank is refilled and tested for leaks, and the company keeps a dated record for its maintenance file.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

Signs worth paying attention to

If you notice one of these signs in Aldawadmi, it is a good moment to talk to the team:

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

Where the problem usually comes from

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

Tools and methods, and when we use them

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.

Facts and costs — Aldawadmi

Questions from Aldawadmi

What we advise against

• Using a material that is not intended for drinking water

What you get after the work

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.