Water tank waterproofing in Tabarjal: before buying or handover

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

Before we start: what we know about Tabarjal

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..

Should I waterproof my water tank before I buy a home in Tabarjal, or can I leave it until after handover? The short answer is that a tank is worth checking before you commit, because the cost of work on it is easier to plan for than a surprise after the keys are handed over. The centre of Tabarjal sits about 548 m above sea level (SRTM open elevation data), so the site you are viewing is at a fixed elevation that you can note when comparing properties. For a tank, the practical question is condition, and the rates for tank internal coating run SAR 25–60 per m², which gives you a rough range to put against the asking price.

The inspection should start with the tank's interior and the joints. Look for hairline cracks, flaking old coatings, and any damp patches on the walls or at the base, because these show where water may be entering or leaking out. Crack injection is priced at SAR 40–120 per metre, so measure any cracks you find and note their length. Check the roof and surrounding slabs for ponding or bubbling, since liquid roof waterproofing is priced at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m², and the area you need to cover will decide which system fits. If the tank sits below ground or against a wall that is damp, ask about basement waterproofing, which is priced at SAR 50–150 per m², and note whether the seller has any records of earlier repairs.

Before the visit, gather the documents and information you will need. Ask the seller for any previous waterproofing invoices, warranties, and maintenance records, and request access to the tank at a time when it is not full so the walls and base can be seen. Bring a notebook or phone to record measurements of visible cracks and damp areas, and take photographs from several angles. Prepare a list of questions about when the tank was last cleaned and whether there have been any leaks, and agree in advance who will be present. With these details in hand, you can compare the likely cost ranges against the price you are being asked to pay, and raise any repair needs before the sale is finalised.

Before buying or taking over a property, an inspection gives you findings in writing before you sign.

Signs worth paying attention to

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

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

Causes we see in the field

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

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 Tabarjal

Short answers for Tabarjal

What we advise against

• 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.