Floor & balcony waterproofing for warehouses in Alkharj
In short: Floor & balcony waterproofing for warehouses 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.
Floor & balcony waterproofing in Alkharj: the local context
The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data). Main roads in or near Alkharj: King Abdullah Road.
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..
An owner of a warehouse in Alkharj often has a large, open floor slab and a flat roof with a small balcony or loading platform, and the building may sit empty for stretches between tenants. Water rarely arrives all at once. It creeps in through hairline cracks in the concrete, pools on low spots in the roof, and slowly stains the floor, so the first sign is often a damp patch or a musty smell rather than a visible leak. By the time the problem is obvious, the repair has usually grown from a small job into a larger one.
Alkharj sits at roughly 439 m above sea level, which places it on the central Najd plateau rather than on the coast. For a warehouse owner, this means the town is not a flood-prone low basin, so the main concern is rainwater running off the roof and the slab rather than water rising from the ground. The sharp contrast between hot days and cooler nights also makes concrete expand and contract, which is why cracks are a common route for water. Owners should therefore focus on sealing the roof surface, the slab edges and any joints, and on checking the floor where rainwater can collect.
A practical approach starts with a walk-through after a rain, or with a careful dry-season inspection, to mark every crack, low spot and damp edge. Next, repair the cracks by injection, which is priced per metre at SAR 40–120 per m, so measuring total crack length first gives a realistic budget. Then treat the roof and balcony surfaces; liquid roof waterproofing is priced at SAR 8–25 per m², while a bitumen membrane runs SAR 15–35 per m², so compare the two against the roof's condition and expected use. Finally, if the floor itself is exposed to moisture, an epoxy coating at SAR 35–90 per m² can seal the surface and make future cleaning and inspection easier. Work in that order, and recheck after the next rainfall to confirm the repairs hold.
For warehouses, work is phased around operations and stored goods.
Signs worth paying attention to
If you notice one of these signs in Alkharj, it is a good moment to talk to the team:
- Water passing from the balcony to the floor below
- A wrong fall towards the door threshold
- Damp under the light well
Causes we see in the field
- A threshold without waterproofing.
- Incorrect falls.
- A common cause: a blocked drain.
Tools and methods, and when we use them
| Method | What it helps with | Its role in Alkharj |
|---|---|---|
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
From the first visit to the report
- 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.
Facts and costs — Alkharj
| Item | Value | Source |
|---|---|---|
| Roads | Main roads in or near Alkharj: King Abdullah Road | Kashf data (owner) |
| District profile | The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| 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 warehouses 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
The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.
Practical notes for residents of Alkharj
- 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).
- 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.
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