Basement & foundation waterproofing for apartments in Alula

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

Why basement & foundation waterproofing differs in Alula

Main roads in or near Alula: King Abdullah Road. The centre of Alula sits about 697 m above sea level (SRTM open elevation data).

Start with the ground itself. The centre of Alula sits about 697 m above sea level (SRTM open elevation data), so an apartment basement here is built into a desert valley setting where rainfall tends to arrive in short, heavy bursts rather than steady drizzle. Because water runs off the surrounding slopes toward low points, the first thing a technician checks is where the basement sits relative to the surface drainage around the building. Walls that take the brunt of runoff, floor-to-wall joints, and any old cracks are examined before any material is discussed, since these are the routes water most often follows into the lower levels.

Several things can only be settled on site. The exact depth of the basement, the condition of the existing concrete, the presence of groundwater, and whether earlier repairs have trapped moisture behind a finish all need eyes and a moisture reading. Access to the outside of the walls, the state of the ground grade, and how the roof and bathroom above connect to the basement also vary from building to building. The technician will mark cracks, test surfaces, and decide which system suits each area, so no single method should be assumed from the description of the job alone. Pricing for the common options, such as basement waterproofing at SAR 50–150 per m², crack injection at SAR 40–120 per metre, or epoxy coating at SAR 35–90 per m², is a starting reference only until the surveyed quantities are known.

To help the technician, have the building's plans or any previous waterproofing records ready, and note where water has appeared before, including the season and whether it follows rain or a plumbing fault. Tell us which spaces you use, such as storage, a laundry or a bathroom below ground, because that affects the choice between coatings and membranes. Clear access to the basement, the roof and any water tank is worth arranging in advance. Bathroom work typically falls within SAR 15–40 per m², and tank internal coating within SAR 25–60 per m², so knowing which areas are in scope keeps the visit focused and the estimate accurate.

In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.

Signs that call for basement & foundation waterproofing

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

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

The most common causes

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

How we choose the tool in Alula

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 — Alula

Common questions about basement & foundation waterproofing in Alula

Mistakes that cost more

• Painting the basement wall while the water comes from outside

What you receive

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