Basement & foundation waterproofing for villas in Abu Arish

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

Before we start: what we know about Abu Arish

Team note on Abu Arish: 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 Abu Arish sits about 67 m above sea level (SRTM open elevation data).

Abu Arish sits in the Jazan region of southwestern Saudi Arabia, and the centre of the town lies about 67 m above sea level according to SRTM open elevation data. That is a modest height, but it still shapes how water behaves on a villa plot. Rain runs down from higher ground around the town and collects where the land flattens, so a basement or ground-floor slab can be exposed to water moving through the soil rather than standing on the surface. For owners here, the first step in any basement assessment is to look at how the plot drains, not only at the wall itself.

That local slope has a direct effect on the service. Because groundwater and surface runoff can reach a basement from the side as well as from below, basement waterproofing is priced per square metre at SAR 50–150 per m², reflecting the need to treat walls and floor together. Crack injection, priced at SAR 40–120 per metre, is often the right repair where water enters through a single line of cracking rather than across the whole wall. Where a membrane or coating is chosen for a wet area, bathroom waterproofing at SAR 15–40 per m² and epoxy coating at SAR 35–90 per m² are typical options. Roof work, such as liquid roof waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m², should be planned together with the basement so that water from the roof is not directed toward the foundation. Water tanks can be treated with tank internal coating at SAR 25–60 per m², and XPS boards at SAR 12–30 per m² may be used as insulation and protection on the outside of buried walls.

Owners in Abu Arish often avoid several common mistakes. They do not wait until damp appears inside before calling for a survey, since early cracks are cheaper to inject than a full basement system. They do not treat only the visible wall while ignoring the floor and the joint between the two. They avoid coating over damp or dusty surfaces, which stops the layer from bonding. They do not block or redirect rainwater gutters toward the building, and they do not mix repair products without checking they are compatible. Finally, they ask for each area to be measured and quoted separately, so that the scope of the work is clear before any material is applied.

Villas often have several lines and tanks; we test them one at a time so the cause is clear.

Signs that call for basement & foundation waterproofing

The following signs are worth checking before they grow:

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

Where the problem usually comes from

• Cracks at construction joints.
• A common cause: a high groundwater level.
• Rainwater draining towards the foundation.

How we choose the tool in Abu Arish

How the work is done, step by step

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.

Abu Arish in facts and sources

Common questions about basement & foundation waterproofing in Abu Arish

Common mistakes we see

• 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.