Water tank waterproofing in Baish: cost & published offers

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

What is specific about Baish for water tank waterproofing

The centre of Baish sits about 84 m above sea level (SRTM open elevation data). Team note on Baish: 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 is most often needed because of hairline cracks and failed joints in the concrete walls and base, which let water seep out, along with old coatings that have peeled and lost adhesion. In Baish, the centre sits about 84 m above sea level (SRTM open elevation data), so the town is not on the coast and tanks are typically relied on for storage. Tanks that have been in service for some years often show these faults first at the lower walls and at the floor-to-wall corner, where movement concentrates.

The approach changes with what the inspection finds. Where the leak runs along a visible line, crack injection is priced per metre at SAR 40–120 per metre, which suits a narrow, defined fault. Where the interior surface is weathered and porous across a wide area, tank internal coating at SAR 25–60 per m² is the more usual route, and epoxy coating at SAR 35–90 per m² is a heavier option for surfaces that need a tougher finish. For the outside of the tank or a buried section, bitumen membrane at SAR 15–35 per m² or XPS boards at SAR 12–30 per m² can be considered, depending on access and how the tank is set. Because the work is measured by area or length, the scope should be confirmed on site before a figure is agreed.

Before the visit, ask the provider to state which method they propose and why, and to confirm whether the quote is per m² or per metre so you can compare like with like. Ask what surface preparation is included, how the tank will be emptied and refilled, and whether crack injection is quoted separately from the coating. Request that the inspection record the tank dimensions and the locations of visible damage, and ask for the quote in writing with the rate applied to each part of the work.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs worth paying attention to

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

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

Where the problem usually comes from

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

Tools we use in Baish

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.

Facts and costs — Baish

Common questions about water tank waterproofing in Baish

Common mistakes we see

• Using a material that is not intended for drinking water

The written outputs

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