Floor & balcony waterproofing for duplexes in Alkharj
In short: Floor & balcony waterproofing for duplexes 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..
Picture a family who bought a duplex in Alkharj, with the upper floor and a sunny balcony sitting above the living space below. After the first few heavy rains they notice a damp stain on the ceiling under the balcony and a faint musty smell near the stairwell. They are not sure whether the problem is the balcony tiles, the slab, or the roof, and they want to fix it once rather than patch it every year. Their question is practical: where does the water come in, and what is the sensible order of work?
The local facts shape that answer. The centre of Alkharj sits about 439 m above sea level, so the town is not a low-lying basin where water collects on its own, but rain still runs off flat balconies and roofs and finds any weak joint in the slab. Because a duplex has two households stacked on each other, a leak from the upper floor affects the lower unit as well, which makes early detection more valuable. Costs also vary widely by method, from roughly SAR 8–25 per m² for liquid roof waterproofing to SAR 15–35 per m² for a bitumen membrane and SAR 35–90 per m² for an epoxy coating, so it helps to decide on the right system before getting quotes.
A sensible sequence starts with inspection. Walk the balcony after rain, mark any cracks, and check where the ceiling stain is darkest, because that usually points to the source. Next, seal the cracks: crack injection is priced at roughly SAR 40–120 per metre, and it should be done before any surface layer goes on. Then choose the surface system for the area, whether liquid roof waterproofing for an open roof, a bitumen membrane for a heavily used balcony, or epoxy for a finish that resists wear. Finally, confirm that falls direct water toward the drains and that the work is inspected after the first significant rain. Doing these steps in order keeps the repair focused and avoids paying twice for the same leak.
In a duplex, the two floors often share lines, so tests are done floor by floor.
When do you need floor & balcony waterproofing?
These are the signs most often linked to floor & balcony waterproofing:
- A wrong fall towards the door threshold
- Water passing from the balcony to the floor below
- Damp under the light well
Causes we see in the field
- A common cause: incorrect falls.
- A common cause: a threshold without waterproofing.
- A blocked drain.
Tools we use in Alkharj
| Tool | What it finds | When we use it in Alkharj |
|---|---|---|
| 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 |
How the work is done, step by step
- 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.
Quick comparison: facts and costs in Alkharj
| 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) |
Common questions about floor & balcony waterproofing in 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 duplexes 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.
Common mistakes we see
- Tiling a balcony without waterproofing
What you get after the work
You receive: the flood result and photos of the details, in a technical report with a verification code.
Practical notes for residents of Alkharj
- 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.
- 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.
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