Basement & foundation waterproofing for hotels & serviced apartments in Alquwayiyah

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

Basement & foundation waterproofing in Alquwayiyah: the local context

The centre of Alquwayiyah sits about 811 m above sea level (SRTM open elevation data).

Before any materials are chosen for a basement or foundation job at a hotel or serviced apartment building, the first thing checked is where the water is coming from and how the site drains. In Alquwayiyah, the centre of the town sits about 811 m above sea level (SRTM open elevation data), so the technician looks at how rainwater and groundwater move across the plot before assuming the basement is simply damp. Guests and staff in these buildings expect dry corridors and plant rooms, and a leak that appears after rain is often the first sign that the foundation is taking water from the surrounding ground rather than from a single failed joint.

Several things are left to the site visit because they cannot be judged from a drawing or a phone photograph. The technician needs to see the exact wall and floor conditions, where cracks run and whether they are active, how the existing membrane (if any) has aged, and whether the ground outside is sloped toward or away from the building. The choice between a bitumen membrane, epoxy coating, spray foam, crack injection or insulated boards depends on those observations. Price ranges for these options are indicative only: basement waterproofing is quoted at SAR 50–150 per m², bitumen membrane at SAR 15–35 per m², epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², crack injection at SAR 40–120 per m, and XPS boards at SAR 12–30 per m², and the final figure follows from what the visit reveals.

To help the technician, the building manager should be ready to share the age of the structure, any previous repair records, the layout of the basement and adjacent plant or water tanks, and the times and conditions when leaks occur. Information about internal tank coatings matters too, since tank internal coating is quoted at SAR 25–60 per m² and is often handled in the same visit. Access arrangements for guest-occupied floors should be confirmed in advance so work can be scheduled around occupancy, and any drawings or past waterproofing warranties should be made available on the day.

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:

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

Where the problem usually comes from

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

Tools and methods, and when we use them

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.

Facts and costs — Alquwayiyah

Common questions about basement & foundation waterproofing in Alquwayiyah

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.