Basement & foundation waterproofing for hotels & serviced apartments in Rastanura

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

Basement & foundation waterproofing in Rastanura: the local context

Team note on Rastanura: 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.. Rastanura is about 0.2 km from the sea coast (OpenStreetMap).

Rastanura sits about 0.2 km from the sea coast, which means basements and foundations here face salt-laden air and moisture that travels inland faster than most owners expect. Hotels and serviced apartments in the area often have lower floors that are used for storage, laundry, plant rooms or guest parking, and these spaces are the first to show damp, efflorescence and rust on fixings. Our waterproofing work for this coastal setting starts with a survey of the basement walls, slab and external ground levels so that the chosen system matches the real exposure rather than a generic specification.

Because the site is so close to the coast, the practical effect is that we treat the basement and foundation as a continuous barrier rather than patching one wall at a time. Basement waterproofing is priced at SAR 50–150 per m², and the final figure depends on access, the condition of the substrate and the level of moisture present. Where cracks appear, crack injection at SAR 40–120 per metre seals the line from inside before the wider membrane is applied. Epoxy coating at SAR 35–90 per m² is often specified for plant rooms and car park floors where chemical exposure and abrasion are additional concerns, while spray foam at SAR 20–45 per m² suits irregular surfaces and tight corners. Bathrooms above basement levels are covered separately at SAR 15–40 per m², so water that finds its way down through the building is less likely to reach the foundation.

Owners who manage hotels and serviced residences in this area tend to avoid a few recurring mistakes. The first is waiting for a visible leak before acting, since salt and moisture can spread unseen behind finishes for a long time. The second is treating the roof and the basement as separate jobs; liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² protect the upper structure, but water that enters through a failed roof can end up in the lowest levels. The third is ignoring water storage: tank internal coating at SAR 25–60 per m² keeps stored water clean and stops the tank from degrading the concrete beneath it. Finally, XPS boards at SAR 12–30 per m² are sometimes skipped to save cost, yet they protect membranes during backfilling and help avoid damage that would otherwise need to be repaired later.

For hotels and serviced apartments, rooms are handled in batches to keep units available.

Signs that call for 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

The most common causes

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

How we choose the tool in Rastanura

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.

Quick comparison: facts and costs in Rastanura

Short answers for Rastanura

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.