Basement & foundation waterproofing for clinics in Sabya

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

Before we start: what we know about Sabya

The centre of Sabya sits about 40 m above sea level (SRTM open elevation data). Sabya is about 16.7 km from the sea coast (OpenStreetMap).

Team note on Sabya: 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.. Main roads in or near Sabya: King Fahd Road, King Abdulaziz Road, King Abdullah bin Abdulaziz Road.

Sabya sits about 40 m above sea level, and it is roughly 16.7 km from the sea coast. Those two facts shape how water behaves on a clinic site here. At this height, ground water is less likely to rise up from the coastal table, so the main pressure on a basement usually comes from surface runoff and seepage through the soil around the walls. For a clinic, that means the waterproofing plan should focus on keeping water out of the building envelope rather than managing a constant high water table. Because the coast is not right beside the town, the damp is less likely to carry salt in the way that affects buildings closer to the shore, which gives the coating system a steadier surface to bond to.

Each of these conditions links to a practical choice. Basement waterproofing is priced at SAR 50–150 per m², and the wide range reflects how much excavation access, wall condition, and drainage work the site needs. Crack injection, at SAR 40–120 per metre, is often the first step where walls already show movement, because sealing a crack before applying a membrane prevents water from tracking behind the coating. Epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² are both used on interior faces where clinic rooms, sterilisation areas, or plant rooms need a sealed, cleanable finish. Bitumen membrane, at SAR 15–35 per m², is a common choice for external walls and slabs, while XPS boards at SAR 12–30 per m² add insulation and protection to the membrane during backfilling.

Owners of clinics in Sabya avoid several common mistakes. They do not skip cracks in the hope that a surface coat will hide them, because water will find the gap and undo the work. They do not rely on a single coat when a membrane, a protection layer, and an interior finish are all needed. They do not apply coatings to damp or dusty surfaces, since adhesion fails and the cost of repairs rises quickly. They also do not treat the basement, bathrooms, liquid roof, and water tanks as separate jobs with unrelated materials, but plan them together so the sealing lines meet cleanly and the clinic keeps running with minimal disruption.

For clinics, work is scheduled around patient hours and kept to the areas that need it.

When do you need basement & foundation waterproofing?

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

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

The most common causes

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

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 — Sabya

Short answers for Sabya

What we advise against

• Painting the basement wall while the water comes from outside

What you get after the work

You receive: the source, the treatment and the follow-up result, in a technical report with a verification code.