Water tank waterproofing for apartments in Jeddah
In short: In Jeddah (Jeddah), water tank waterproofing for apartments begins with the fill test with level monitoring and the crack injection (polyurethane or epoxy); nothing is opened until the position is clear. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Published price: Tank internal coating (per m²), SAR 25–65 per m²; anything else is quoted after the inspection.
What is specific about Jeddah for water tank waterproofing
The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Jeddah is about 2 km from the sea coast (OpenStreetMap).
Team note on Jeddah: 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..
Before any coating is chosen for a water tank in Jeddah, the first thing checked is where the tank sits relative to the coast, because that shapes the risk. Jeddah is about 2 km from the sea coast, so the air carries salt and humidity that can attack concrete and metal surfaces over time. The centre of Jeddah sits about 15 m above sea level, which means many tanks are not in a low-lying hollow but still face a damp coastal climate. Technicians therefore start by noting the tank's exposure, its material, and whether the surrounding structure is concrete block, cast concrete, or steel, since each responds differently to salt-laden moisture.
Several things can only be judged on the site visit. The technician needs to see the actual condition of the tank walls and floor, look for cracks, flaking, efflorescence, and standing damp, and check how the tank joins the roof and any pipe penetrations. The visit also confirms the tank's size, its access, whether it can be drained and dried before work begins, and whether the water it holds is potable, since that affects the choice of product. Prices for internal tank coating are listed at SAR 25–65 per m², and crack injection at SAR 40–125 per metre, but the final figure depends on what the inspection finds. No quote should be fixed until the surface has been measured and assessed in person.
To help the technician, it is useful to have the tank's approximate dimensions, its age, any previous repairs, and a note of whether leaks appear at the walls, the base, or the lid. Information about the nearby structure, such as whether the tank sits on a roof or at ground level, helps decide between an internal coating and an external membrane. Access arrangements, including the building's water supply schedule, should also be shared in advance so the tank can be emptied and cleaned on time. Clear answers to these points let the technician plan materials and labour properly and avoid repeat visits.
In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.
Signs that call for water tank waterproofing
If you notice one of these signs in Jeddah, 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
The most common causes
- Damaged old coating.
- Cracks in the walls or floor — we check this before anything else.
- A common cause: construction joints.
How we choose the tool in Jeddah
| Method | What it helps with | Its role in Jeddah |
|---|---|---|
| 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 |
From the first visit to the report
- 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.
Quick comparison: facts and costs in Jeddah
| Item | Value | Source |
|---|---|---|
| District profile | Jeddah is about 2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Jeddah: 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. | Kashf team |
| Tank internal coating (per m²) | SAR 25–65 per m² | Owner price list (Jeddah) |
Questions from Jeddah
Can I use household chemicals instead of calling a technician?
Using unsuitable chemicals may corrode pipes and does not fix the root cause of the blockage, so it is better to rely on a specialist technician.
What is the difference between foam insulation and other types of insulation?
Foam insulation is easy to apply on uneven surfaces and forms one continuous layer with no joints, while other types, such as bitumen rolls, need the joints to be welded. The contractor decides which is most suitable after inspecting the site.
Can thermal insulation be applied to an existing building?
Yes, thermal insulation can be installed on the roofs and walls of existing buildings without the need for major structural modifications. The contractor prepares the surface, then applies the insulating material and the protective layer over it.
What is the first step of water tank waterproofing for apartments?
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).
How much does water tank waterproofing cost in Jeddah?
From our published price list: Tank internal coating (per m²) SAR 25–65 per m². Quantities are confirmed at the inspection.
What do I get at the end?
The material name, its batch number and the fill-test result, in a technical report that carries a verification code.
Common mistakes we see
- 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.
Planning the visit in Jeddah
- 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
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Customer questions (reviewed)
- Owner price list for Jeddah
- 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