Water tank waterproofing in Baqiq: before buying or handover

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

Before we start: what we know about Baqiq

The centre of Baqiq sits about 83 m above sea level (SRTM open elevation data). Main roads in or near Baqiq: King Fahd Road.

Team note on Baqiq: 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..

Is it worth paying for a water tank waterproofing check before you buy a home in Baqiq, or at handover? In short, yes, because the tank is one of the few parts of a property you cannot see clearly once the building is finished. The centre of Baqiq sits about 83 m above sea level (SRTM open elevation data), so it is worth remembering that the area is not a coastal plain, and any water storage on a roof or ground level should be checked for seepage before you accept the keys. A tank coating is priced at SAR 25–60 per m², while a tank that leaks can damage the slab and the rooms beneath it, so a short inspection is a sensible step.

The inspection should start with the tank's interior and exterior surfaces, looking for cracks, flaking, and damp patches along the walls and base. Crack injection, priced at SAR 40–120 per metre, is often the first repair if hairline cracks are found, and the inspector should measure their length so the cost can be estimated. Check the roof above the tank as well, since liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² are common ways to protect that area, and worn surfaces there can let water reach the tank cover. Ask whether the tank was coated and, if so, when; epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² each have different wear patterns, and an inspector should note which one is present. Where the tank sits near a basement or bathroom, the adjoining surfaces should also be looked at, since basement waterproofing at SAR 50–150 per m² and bathroom waterproofing at SAR 15–40 per m² often share a leak path.

Before the visit, ask the seller or developer for any previous waterproofing records, invoices, or warranty papers, and note the dates of any repairs. Clear access to the roof hatch and the tank lid so the inspector can see the interior and exterior without delay, and make sure the water supply to the tank can be shut off during the check. Write down any stains, smells, or sounds of running water you have noticed, since they help the inspector find the source faster. Finally, agree in writing who will pay for any repair found at handover, so the discussion about cost does not stall the purchase.

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

When do you need water tank waterproofing?

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

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

Causes we see in the field

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

How we choose the tool in Baqiq

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 Baqiq

Questions from Baqiq

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.