Basement & foundation waterproofing for hotels & serviced apartments in Jazan

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

Basement & foundation waterproofing in Jazan: the local context

The centre of Jazan sits about 7 m above sea level (SRTM open elevation data). Jazan is about 1.9 km from the sea coast (OpenStreetMap).

Team note on Jazan: 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..

A hotel or serviced apartment owner in Jazan usually has a basement that serves as a laundry, storage room, plant room or parking area, and guests rarely see it. When water finds its way in, the problem reaches the lobby and the guest rooms quickly: stained walls, a musty smell, and complaints that undermine the reputation of the property. Owners in this position need protection that works without closing the building for long periods.

The local facts explain why this matters here. The centre of Jazan sits about 7 m above sea level, and the city is about 1.9 km from the sea coast. Ground that low and that close to the water can keep moisture in the soil and push it against basement walls and slabs, especially after rain. Because the site is so close to the coast, owners should expect dampness to be a constant pressure rather than an occasional event, so waterproofing should be planned as part of the building's upkeep and not treated as a one-off repair.

A sensible approach starts with inspection. Map every crack, damp patch and joint in the basement, and note which areas are wet and which are only stained. Next, seal the active cracks with crack injection, which is priced per metre, so the length of each crack determines the cost. Then treat the main surfaces: basement waterproofing is priced per square metre, and epoxy coating or spray foam can be considered for areas that need a tougher finish. Wet rooms and bathrooms above the basement should receive their own bathroom waterproofing, and any water tanks on the roof should be checked for internal coating. Finally, schedule a repeat inspection after the first wet season so that any new seepage is caught early and the work stays manageable.

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

Signs worth paying attention to

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 we use in Jazan

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.

Facts and costs — Jazan

Questions from Jazan

Common mistakes we see

• Painting the basement wall while the water comes from outside

What you receive

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