Basement & foundation waterproofing in Alkharj: cost & published offers
In short: Basement & foundation waterproofing (cost & published offers) in Alkharj starts with the moisture meter for ceilings and walls, then the crack injection (polyurethane or epoxy), before anything is opened. The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data). Published price: Crack injection (per metre), SAR 40–120 per m; anything else is quoted after the inspection.
Basement & foundation 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..
Basement and foundation waterproofing in Alkharj most often starts with water seeping through cracks and wall joints after heavy rain or when groundwater rises. Because the problem usually shows up as damp patches, efflorescence, or a musty smell rather than visible flooding, it is easy to underestimate. Typical pricing for basement waterproofing runs SAR 50–150 per m², while crack injection is priced separately at SAR 40–120 per metre, so a clear survey of where water enters is worth paying for before any work starts.
The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data), which shapes how the work is approached. Water moves across the area as surface runoff and into the ground rather than pooling in a deep natural basin, so the first step is to check how rainwater drains away from the building and whether ground levels around the foundation slope toward the walls. Where a basement is exposed to outside soil pressure, a membrane or epoxy system may be the right choice, with epoxy coating at SAR 35–90 per m² and bitumen membrane at SAR 15–35 per m² as common options. Spray foam (SAR 20–45 per m²) and XPS boards (SAR 12–30 per m²) can also be used in some layouts, depending on access and the existing finish.
Before the visit, ask the provider to explain how they will locate the source of the leak, not just the surface damp, and whether the quote covers crack injection, surface preparation and drainage correction. Ask for the measured area in square metres and the length of any cracks in metres, so you can compare the quote with the published ranges above. Confirm which coating is proposed, how long it needs to cure before the space can be used, and whether any follow-up inspection is included. A written scope that matches these facts will make it much easier to judge the price and the work.
Prices shown on this page come from our own published price list for the city; the final price is set after inspection.
When do you need basement & foundation waterproofing?
If you notice one of these signs in Alkharj, it is a good moment to talk to the team:
- Damp basement walls
- Salt marks at the bottom of the walls
- Water seeping in after rain
Causes we see in the field
- Rainwater draining towards the foundation — we check this before anything else.
- A high groundwater level — we check this before anything else.
- Cracks at construction joints — we check this before anything else.
Tools we use in Alkharj
| Method | What it helps with | Its role in Alkharj |
|---|---|---|
| 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 |
| Crack injection (polyurethane or epoxy) | Stopping active water through cracks | Limits: treats the crack, not the water source |
The steps in order
- Finding the source: Groundwater, rain or a pipe — each needs a different treatment.
- Preparation: Surfaces are cleaned and opened where needed.
- Injection: Active cracks are injected.
- Waterproofing layers: The system is applied on the right side of the wall where possible.
- Follow-up: Readings are repeated after the treatment.
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 |
| Crack injection (per metre) | SAR 40–120 per m | Owner price list (Alkharj) |
| Basement waterproofing (per m²) | SAR 50–150 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 basement & foundation waterproofing (cost & published offers) start in Alkharj?
We start with finding the source (groundwater, rain or a pipe — each needs a different treatment), then preparation (surfaces are cleaned and opened where needed).
What does basement & foundation waterproofing cost in Alkharj?
From our published price list: Crack injection (per metre) SAR 40–120 per m; Basement waterproofing (per m²) SAR 50–150 per m². Quantities are confirmed at the inspection.
What do I receive after the work?
The source, the treatment and the follow-up result, in a technical report that carries a verification code.
Mistakes that cost more
- Painting the basement wall while the water comes from outside
The written outputs
You receive: the source, the treatment and the follow-up result, in a technical report with a verification code.
If you live in Alkharj and are new to the area
- 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