Water tank waterproofing for villas in Alula
In short: Water tank waterproofing for villas in Alula starts with the fill test with level monitoring, then the crack injection (polyurethane or epoxy), before anything is opened. The centre of Alula sits about 697 m above sea level (SRTM open elevation data). Published price: Tank internal coating (per m²), SAR 25–60 per m²; anything else is quoted after the inspection.
Before we start: what we know about Alula
The centre of Alula sits about 697 m above sea level (SRTM open elevation data). Main roads in or near Alula: King Abdullah Road.
Picture a villa owner in Alula who has just noticed a damp patch spreading across the wall beside the rooftop water tank. The tank is full, the sun is strong during the day, and the owner wants to know whether the tank itself is leaking or whether the trouble is coming from the roof above. They are not an engineer, and they want a clear answer before paying for any work.
The centre of Alula sits about 697 m above sea level (SRTM open elevation data), which matters more than it might seem. At that height the air is dry and temperature swings between day and night can be wide, so concrete and coatings expand and contract every day. A tank in that climate is under constant stress, and small cracks at the joints can open up over time. For a villa owner, this means that a tank which looked sound a year ago may now need attention, and that the most common weak points are the tank walls, the base seal and the roof surface that sits under and around the tank.
Start by checking the tank and its surroundings before committing to any method. Empty the tank if you can, dry the surface, and look for cracks, flaking paint or white crust on the inside and outside. Mark every crack you find, because crack injection is priced per metre (SAR 40–120 per m) and you need to know the total length before asking for a quote. Next, decide on the coating for the inside of the tank, which is priced at SAR 25–60 per m². Confirm that the surface is prepared properly, since coatings will not hold on dust or damp concrete. Then look at the roof around the tank base. Liquid roof waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m² are the usual options there, and XPS boards at SAR 12–30 per m² can help protect the membrane from the sun. Finally, ask for each item to be listed separately with its area or length, so you can compare the offers and see exactly what you are paying for.
Villas often have several lines and tanks; we test them one at a time so the cause is clear.
Signs worth paying attention to
These are the signs most often linked to water tank waterproofing:
- A tank that leaks after testing
- Deposits and flaking inside the tank
- Unusual colour or taste in the water
The most common causes
- A common cause: damaged old coating.
- A common cause: cracks in the walls or floor.
- Construction joints — we check this before anything else.
Tools and methods, and when we use them
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
| Fill test with level monitoring | Whether a tank coating holds after the work | Limits: takes time to monitor the level |
| Crack injection (polyurethane or epoxy) | Stopping active water through cracks | Limits: treats the crack, not the water source |
How the work is done, step by step
- Emptying and ventilation: The tank is emptied and ventilated before entry.
- Cleaning and preparation: Loose material is removed down to a sound surface.
- Crack treatment: Active cracks are treated first.
- Coating layers: A material intended for drinking-water tanks is applied.
- Disinfection and fill test: The tank is disinfected and the level is monitored after filling.
Alula in facts and sources
| Item | Value | Source |
|---|---|---|
| Roads | Main roads in or near Alula: King Abdullah Road | Kashf data (owner) |
| District profile | The centre of Alula sits about 697 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Tank internal coating (per m²) | SAR 25–60 per m² | Owner price list (Alula) |
Questions from Alula
Where does water tank waterproofing for villas start in Alula?
We start with emptying and ventilation (the tank is emptied and ventilated before entry), then cleaning and preparation (loose material is removed down to a sound surface).
What does water tank waterproofing cost in Alula?
From our published price list: Tank internal coating (per m²) SAR 25–60 per m². Quantities are confirmed at the inspection.
What do I receive after the work?
The material name, its batch number and the fill-test result, in a technical report that carries a verification code.
Mistakes that cost more
- 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.
If you live in Alula and are new to the area
- Have access ready to the water meter, the tank hatches, the roof and the main valve; in apartment buildings the roof keys are often with the building guard (haris).
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- If you rent, tell your landlord or building management before the visit and agree in writing who pays; the written report can be shared with them.
Sources and method
- SRTM (NASA) open data
- Kashf data (owner)
- Owner price list for Alula
- Local pages are published only after a quality gate: real local facts, text similarity of no more than 15% with any other English page, and a claims check.
- النسخة العربية