Floor & balcony waterproofing for schools in Alkharj
In short: Floor & balcony waterproofing for schools in Alkharj starts with the roof, falls and drains survey, then the moisture meter for ceilings and walls, before anything is opened. The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data). Pricing starts from Bathroom waterproofing (per m²) (SAR 15–40 per m²), and other items are quoted after the visit.
What is specific about Alkharj for floor & balcony waterproofing
Main roads in or near Alkharj: King Abdullah Road. The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data).
Team note on Alkharj: 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 Alkharj sits about 439 m above sea level (SRTM open elevation data), a plateau setting that shapes how school buildings handle rainfall and surface runoff. Because the ground is relatively high and open, water tends to move quickly across roofs, terraces and walkways rather than pooling for long periods. For a school waterproofing service, this means the first job is to read the slope of each surface and find where water will gather at joints, drains and upstands, so that the system is laid where it will actually be tested.
Schools in the area have a mix of roof terraces, covered walkways, bathroom blocks and occasionally basements or water tanks, and each carries a different cost profile. Liquid roof waterproofing is commonly priced at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², and bathroom waterproofing at SAR 15–40 per m². Basement waterproofing is SAR 50–150 per m², and tank internal coating runs SAR 25–60 per m². Knowing these ranges lets a school compare quotes for the right surface type instead of treating all waterproofing as one job. Crack injection, at SAR 40–120 per metre, is often the right first step on a cracked slab before any membrane goes on top.
Owners who plan well avoid several common mistakes. They do not skip surface preparation, because a membrane laid over dust, loose screed or an unrepaired crack will fail early. They do not choose the cheapest coating for a wet area without checking its fit for the use, and they do not leave edges and penetrations unsealed, since water usually enters at those points. They also avoid scheduling work during the school day, when noise and access restrictions cause delays and rushed application. Asking for a clear scope per square metre, with the chosen system named, keeps the job measurable and easier to check at handover.
For schools, the larger jobs are planned for weekends and holidays.
Signs worth paying attention to
If you notice one of these signs in Alkharj, it is a good moment to talk to the team:
- A wrong fall towards the door threshold
- Water passing from the balcony to the floor below
- Damp under the light well
Where the problem usually comes from
- Incorrect falls — we check this before anything else.
- A common cause: a threshold without waterproofing.
- A blocked drain — we check this before anything else.
How we choose the tool in Alkharj
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
The steps in order
- Checking the falls: Where water collects and where it should go.
- Details: Thresholds, drains and upstands.
- Waterproofing: The layer is applied and protected.
- Flood test: Tested before the finish goes on.
Alkharj in facts and sources
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Roads | Main roads in or near Alkharj: King Abdullah Road | Kashf data (owner) |
| District profile | Team note on Alkharj: 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 |
| Bathroom waterproofing (per m²) | SAR 15–40 per m² | Owner price list (Alkharj) |
Questions from Alkharj
Does an underground tank require waterproofing even if it is new?
Yes, concrete is naturally porous, which can lead to leaks or groundwater seepage. Applying epoxy or cementitious insulation from the start maintains water quality and protects the structure from corrosion.
Do you need to evacuate the building during renovation work?
It depends on the type and scope of the work. Surface work such as plastering and painting usually does not require evacuation, while partial or full evacuation may be advised in cases of structural reinforcement, and the contractor determines this after inspection.
Where does floor & balcony waterproofing for schools start in Alkharj?
We start with checking the falls (where water collects and where it should go), then details (thresholds, drains and upstands).
What does floor & balcony waterproofing cost in Alkharj?
From our published price list: Bathroom waterproofing (per m²) SAR 15–40 per m². Quantities are confirmed at the inspection.
What do I receive after the work?
The flood result and photos of the details, in a technical report that carries a verification code.
Mistakes that cost more
- Tiling a balcony without waterproofing
What you get after the work
The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.
If you live in Alkharj and are new to the area
- 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.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- 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).
Sources and method
- SRTM (NASA) open data
- Kashf data (owner)
- Kashf team
- Customer questions (reviewed)
- Owner price list for Alkharj
- 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