Water tank waterproofing in Alqurayyat: cost & published offers

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

What is specific about Alqurayyat for water tank waterproofing

Team note on Alqurayyat: 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.. The centre of Alqurayyat sits about 497 m above sea level (SRTM open elevation data).

Consider a homeowner in Alqurayyat whose rooftop water tank has begun to show damp patches on the ceiling below and a faint stain on the outer wall. The house is a family villa, the tank has been in place for years, and the owner wants to understand what proper waterproofing would cost before calling anyone. They are not looking for a single figure but a clear picture of how the work is priced and what it covers.

The local setting matters here. The centre of Alqurayyat sits about 497 m above sea level, so the town is elevated above much of the surrounding land, and rainwater and wind-driven moisture can reach roof level and tank walls more readily than in low-lying areas. That elevation does not change the price of the work, but it does mean the owner should check the tank surface and the roof junctions carefully, because exposure is real. For a tank, the main price points to note are tank internal coating at SAR 25–60 per m² and liquid roof waterproofing at SAR 8–25 per m². If the tank has cracks, crack injection is priced at SAR 40–120 per metre, and that cost can rise quickly if several lines need sealing.

Practical steps help keep the job orderly. First, have the tank emptied and the surfaces cleaned so the true extent of the damage is visible. Second, measure the internal wall and floor area and mark any cracks, because the quote will be built from these measurements. Third, compare the options: an internal coating protects the tank itself, while a roof liquid membrane or bitumen membrane, priced at SAR 15–35 per m², protects the structure around it. Fourth, ask each provider to itemise the surface area, the crack length and the coating type, so that the quotes can be compared line by line. Finally, confirm the curing time before refilling, and keep the written scope and measurements for future reference.

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

When do you need water tank waterproofing?

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

The most common causes

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

How we choose the tool in Alqurayyat

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 Alqurayyat

Questions from Alqurayyat

What we advise against

• Using a material that is not intended for drinking water

What you receive

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.