Basement & foundation waterproofing in Alwajh: emergency

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

What is specific about Alwajh for basement & foundation waterproofing

Alwajh is about 0.7 km from the sea coast (OpenStreetMap). The centre of Alwajh sits about 19 m above sea level (SRTM open elevation data).

Team note on Alwajh: 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..

In Alwajh, the first thing a technician checks in a basement or foundation emergency is how close the site is to the water table and the coast. The centre of Alwajh sits about 19 m above sea level, and the town is about 0.7 km from the sea coast. Those two facts shape the first look: a building this close to the shore can take in moisture from below and from the side, so the technician starts by tracing where water is actually entering rather than assuming it comes from the roof or the surface. Standing water, damp patches on the lowest walls and the floor-to-wall joint are noted before any tools come out.

Several points are left to the site visit itself. The exact depth of the basement, the condition of the existing membrane, the type of soil around the foundation and the route the water takes through cracks or joints can only be confirmed on the ground. The technician will also judge whether an emergency fix is enough or whether the wider area needs longer work. Costs for the main options, such as basement waterproofing at SAR 50–150 per m², crack injection at SAR 40–120 per metre and epoxy coating at SAR 35–90 per m², depend on the measured area and the method chosen, so the quote follows the survey rather than coming before it.

To help the technician, it is useful to have ready the age of the building, any previous waterproofing work and the locations where water has been seen, with photos if possible. Please clear the affected area of stored items, switch off power to wet sockets, and note whether the water is clean or carries sediment. Mention if a water tank sits near the basement, since tank internal coating (SAR 25–60 per m²) is handled separately. Clear information at the start means the visit can focus on the leak itself and the work can begin sooner.

If water is flowing, close the main valve first, then call or message with photos.

When do you need basement & foundation waterproofing?

These are the signs most often linked to basement & foundation waterproofing:

• Salt marks at the bottom of the walls
• Damp basement walls
• Water seeping in after rain

Where the problem usually comes from

• A high groundwater level — we check this before anything else.
• Rainwater draining towards the foundation — we check this before anything else.
• A common cause: cracks at construction joints.

Tools and methods, and when we use them

From the first visit to the report

1. Finding the source: Groundwater, rain or a pipe — each needs a different treatment.
2. Preparation: Surfaces are cleaned and opened where needed.
3. Injection: Active cracks are injected.
4. Waterproofing layers: The system is applied on the right side of the wall where possible.
5. Follow-up: Readings are repeated after the treatment.

Alwajh in facts and sources

Short answers for Alwajh

Mistakes that cost more

• Painting the basement wall while the water comes from outside

What you get after the work

The written output: the source, the treatment and the follow-up result. The report is numbered and can be checked with its verification code.