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

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

What is specific about Khobar for water tank waterproofing

Team note on Khobar: 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.. Khobar is about 1.8 km from the sea coast (OpenStreetMap).

The centre of Khobar sits about 9 m above sea level (SRTM open elevation data).

Water tanks serving companies in Khobar face a common problem: slow seepage through the internal walls and floor, often first noticed as damp patches on the outside of the tank or staining on the tank room floor. For commercial buildings, where tanks supply offices, staff facilities and sometimes process water, a leak that goes unnoticed for months can affect water quality as well as the structure below. Internal coating is usually the answer, and its cost is typically SAR 25–60 per m², depending on the surface condition and the access available inside the tank.

Khobar's location shapes how this work should be approached. The centre of the city sits about 9 m above sea level, and the sea coast is about 1.8 km away, so the area is close enough to the coast for salt-laden air and groundwater to matter, but not so low-lying that flooding is the main concern. This means the surface must be cleaned and dried thoroughly before any coating goes on, and the chosen system should be one that resists moisture and salts over time. Where tanks sit at or below ground level, the wider basement waterproofing rate of SAR 50–150 per m² may also be relevant, so the tank and the adjoining walls should be assessed together rather than treated as separate jobs.

Before booking a visit, a company should ask a few practical questions. Find out how the tank will be emptied and disinfected before work begins, and whether the water supply can be maintained during the job. Ask whether the quote covers crack repair, since crack injection is priced separately at SAR 40–120 per metre and can add to the total. Request a written breakdown by square metre so the scope is clear, and confirm how long the tank must stay out of use while the coating cures. Asking these questions early helps avoid surprises and keeps the work on schedule for the business.

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

Signs worth paying attention to

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

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.

Quick comparison: facts and costs in Khobar

Short answers for Khobar

Common mistakes we see

• Using a material that is not intended for drinking water

The written outputs

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.