Water tank waterproofing for restaurants in Dhahran

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

Why water tank waterproofing differs in Dhahran

Team note on Dhahran: 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.. Dhahran is about 5.9 km from the sea coast (OpenStreetMap).

The centre of Dhahran sits about 16 m above sea level (SRTM open elevation data).

Water tank waterproofing for restaurants in Dhahran usually starts with a simple problem: a commercial kitchen and dining room draw heavily on stored water, and a tank that leaks or has worn internal coating loses volume, stains surrounding walls and roofs, and can contaminate supply. Cracks at the base and seams are the most common failure point, and they are easy to miss until water has already soaked into the structure below. For restaurants, a tank that is out of service even for a short time can disrupt cooking, washing and cleaning, so early repair is far cheaper than an emergency call.

The local setting shapes how we approach the work. The centre of Dhahran sits about 16 m above sea level, and the city is about 5.9 km from the sea coast. That combination means the area is not a low-lying flood plain, so drainage around the tank and roof is an important part of the job, but the coastal distance also means salt and humidity affect the materials we choose. We therefore look closely at the tank's internal coating, the condition of the roof surface where the tank stands, and how water runs off after rain. Where a tank sits on a roof, liquid roof waterproofing and bitumen membrane are common options, while internal tank coating addresses the water-contact surfaces directly. Rates for these works vary: liquid roof waterproofing costs SAR 8–25 per m², bitumen membrane SAR 15–35 per m², and tank internal coating SAR 25–60 per m².

Before the visit, ask the provider what they will check first, and whether they will test the tank for leaks rather than only repairing visible surfaces. Ask how they will drain and clean the tank, how long the restaurant will be without stored water, and whether they will work around your opening hours. Request a written quote that separates each item, such as crack injection at SAR 40–120 per metre or epoxy coating at SAR 35–90 per m², so you can compare like with like. Finally, ask which materials they recommend for your roof and tank and why, so you understand the choice before any work starts.

For restaurants, visits are planned outside service hours and recorded for the premises file.

Signs that call for water tank waterproofing

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

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

The most common causes

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

Tools and methods, and when we use them

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.

Facts and costs — Dhahran

Short answers for Dhahran

What we advise against

• Using a material that is not intended for drinking water

What you get after the work

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