Basement & foundation waterproofing in Sharurah: before summer & rain season

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

Why basement & foundation waterproofing differs in Sharurah

Team note on Sharurah: 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 Sharurah sits about 724 m above sea level (SRTM open elevation data).

Main roads in or near Sharurah: King Abdulaziz Road, King Fahd Road.

Basement and foundation waterproofing in Sharurah is most often needed because water finds its way through cracks and past the walls below ground level, rather than because a surface has simply worn out. Cracks in basement walls and floor slabs are the most common entry point, and they tend to get worse over time as the ground moves and the concrete ages. Where a crack is the cause, crack injection is usually priced per metre, at SAR 40–120 per m, which makes it a useful first step to scope before committing to a larger membrane job. Pressure from the outside can also push moisture through joints that looked sound from the inside.

The location shapes the approach. The centre of Sharurah sits about 724 m above sea level, which places the town in the highlands of the Asir region rather than on the coastal plain. A survey should therefore look at how rainwater runs off the surrounding ground and whether it collects against the building, not just at the walls themselves. Ground-level drainage, gradients and the condition of any external surfaces matter as much as the interior finish. Because the terrain and rainfall pattern decide where water sits, a sensible plan treats the basement as one part of a wider system. For larger areas, basement waterproofing is quoted per m² at SAR 50–150 per m², and the chosen system depends on what the survey finds rather than on a default product.

Before the visit, ask a few clear questions so the survey is useful from the start. Ask which parts of the basement you have seen water in, and when, since summer storms and seasonal changes can reveal different leaks. Ask whether the crew will check the outside of the foundation as well as the inside, and whether they will note the slope of the ground around the building. Ask for the work to be priced by component, such as crack injection per metre, membrane per m², or coating per m², so you can compare the scope clearly. Finally, ask how the site will be prepared and what condition the surfaces must be in before the work starts, so there are no surprises on the day.

Checks before summer and before the rain season catch problems while they are still small.

When do you need basement & foundation waterproofing?

The following signs are worth checking before they grow:

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

The most common causes

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

Tools and methods, and when we use them

The steps in order

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.

Facts and costs — Sharurah

Questions from Sharurah

What we advise against

• 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.