Water tank waterproofing for offices & commercial complexes in Tabarjal

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

What is specific about Tabarjal for water tank waterproofing

The centre of Tabarjal sits about 548 m above sea level (SRTM open elevation data). Team note on Tabarjal: 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..

Water tank waterproofing for offices and commercial complexes most often starts with leaks at the tank's internal joints, wall-to-floor junctions and roof penetrations, where repeated filling and drawing cycles open hairline cracks. Left alone, seepage can stain ceilings on the floors below, corrode fittings and contaminate stored water, so the first job is usually to find where the water is really entering rather than simply recoating the surface. Commercial tanks also tend to be sized for daily demand and are used harder than residential ones, which makes a sound internal lining especially important.

Local conditions shape the approach. The centre of Tabarjal sits about 548 m above sea level (SRTM open elevation data), so buildings there face a different exposure profile from low coastal sites, and rooftop tanks are more directly exposed to wind-driven rain and temperature swings. For that reason we look closely at roof-level work as well as the tank interior. Typical rates for the main options are: tank internal coating at SAR 25–60 per m², epoxy coating at SAR 35–90 per m², liquid roof waterproofing at SAR 8–25 per m², and bitumen membrane at SAR 15–35 per m². Crack injection is priced separately at SAR 40–120 per metre, which is often the right choice where a leak is confined to one seam. Where a tank sits beside or below occupied space, basement waterproofing at SAR 50–150 per m² may also need to be considered.

Before the visit, ask the provider which tank surfaces they will inspect, and whether they will test for leaks before quoting. Ask how they will isolate and drain the tank, how long the water supply to the building will be interrupted, and which products they plan to use, including whether the coating is suitable for potable water. Request a written scope that separates interior lining, roof work and any crack repairs, so you can compare like with like. Finally, confirm how the tank will be cleaned and disinfected before it is refilled, since this matters for the health of everyone using the building.

For offices and commercial complexes, work is scheduled to avoid disrupting staff and visitors.

Signs that call for water tank waterproofing

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

• 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.

Tools and methods, and when we use them

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.

Facts and costs — Tabarjal

Questions from Tabarjal

What we advise against

• Using a material that is not intended for drinking water

What you receive

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.