Water tank waterproofing for villas in Jubail

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

Water tank waterproofing in Jubail: the local context

Jubail is about 0.9 km from the sea coast (OpenStreetMap). The centre of Jubail sits about 4 m above sea level (SRTM open elevation data).

Team note on Jubail: 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 villas in Jubail starts with a problem that shows up in most villa tanks here: hairline cracks and failed joints in the concrete walls and base, which let water seep out and mineral deposits build up on the outside. Because the leak is often hidden under the tank and inside the walls, owners may only notice a damp patch on a wall or a drop in water level. Internal coating is the usual fix for this, and the cost sits in a broad range, from SAR 25 to SAR 60 per m², with crack injection priced separately at SAR 40 to SAR 120 per metre for the cracks themselves.

Jubail's location shapes the work. The centre of Jubail sits about 4 m above sea level, and the town is about 0.9 km from the sea coast, so tanks here are exposed to salt-laden air and a shallow groundwater environment. That mix means the concrete can carry salts that work against coatings, so the surface should be checked and prepared before any product goes on. A crew that understands the coast will look at the outside of the tank and the surrounding ground, not only the inside, because moisture can move in from the sides and base as well as from the top.

Before booking a visit, ask the provider which parts of the tank they plan to treat and why, and whether they will test for cracks and damp before quoting. Ask what coating system they recommend for an internal tank surface, and whether the price is quoted per m² so you can compare it with the stated range. Also ask how they will handle the crack repair, since injection is priced per metre and may be needed in addition to the coating. Finally, ask how long the work will keep the tank out of use and when you can refill it, so the schedule fits your household.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

Signs worth paying attention to

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

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

Where the problem usually comes from

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

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.

Quick comparison: facts and costs in Jubail

Short answers for Jubail

What we advise against

• Using a material that is not intended for drinking water

What you receive

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