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

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

Water tank waterproofing in Dhahran: the local context

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).

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 sits about 16 m above sea level, and its centre is roughly 5.9 km from the coast. For company sites that run large rooftop or ground-level water tanks, those two facts shape how the work is planned. A site this close to the sea is exposed to salty, humid air that can speed up corrosion on steel fittings and tank linings, so the coating system and the inspection schedule should account for that exposure rather than assume inland conditions. The modest elevation means that ground-level tanks may sit in areas that drain differently from higher, more sloped ground, so the surface preparation and the drainage around the tank base need checking before any coating is applied.

Each of these facts has a practical effect on the job. Because the coastal air carries moisture and salt, we begin each tank inspection by checking the external fittings, ladders and access hatches for early corrosion, and we treat those areas before the internal coating goes on. The distance from the sea also means that the tank's internal lining has to cope with water that may be warm and mineral-rich, so the choice between an epoxy coating and a spray foam system is made according to the tank's construction and the water it holds. Our price ranges give company clients a clear starting point: tank internal coating is SAR 25–60 per m², epoxy coating is SAR 35–90 per m², and spray foam is SAR 20–45 per m². Where a tank sits on a roof, liquid roof waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m² can protect the base, and XPS boards at SAR 12–30 per m² can add insulation to the tank's surroundings.

Owners who avoid the most common problems tend to share a few habits. They do not skip the surface preparation, because a coating applied over dust, old flaking paint or salt residue will fail early. They do not treat cracks as cosmetic; crack injection, priced at SAR 40–120 per metre, should be carried out before a full coating so that water cannot travel behind the new layer. They also do not wait for a leak to appear before booking an inspection. Scheduling a yearly check, with the coastal exposure of Dhahran in mind, lets a company catch small defects while they are still inexpensive to repair and keeps its water supply dependable throughout the year.

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 Dhahran, it is a good moment to talk to the team:

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

Causes we see in the field

• Cracks in the walls or floor.
• A common cause: damaged old coating.
• A common cause: construction joints.

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.

Quick comparison: facts and costs in Dhahran

Common questions about water tank waterproofing in Dhahran

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.