Basement & foundation waterproofing for apartments in Aldarb

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

What is specific about Aldarb for basement & foundation waterproofing

The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Aldarb is about 18.7 km from the sea coast (OpenStreetMap).

Damp and water seepage through basement walls and floors are the most common problems we see in apartment buildings, especially in older blocks where the lowest level was never properly sealed. Water often enters through hairline cracks at the wall-floor joint, or migrates through the concrete when the ground outside is saturated after rain. Left alone, it leads to musty odours, efflorescence on the walls, and damage to stored belongings and the building's electrical fittings.

Aldarb sits at about 79 m above sea level and roughly 18.7 km from the sea coast. Because the town is inland and not at the coast, the main concern here is not salt-laden air but water moving through the ground and sudden runoff during heavy rain. That is why we start with the wall and floor surfaces that touch the soil, and why crack injection is often quoted alongside a full membrane or coating. Pricing varies with the work involved: basement waterproofing typically falls in the SAR 50–150 per m² range, a bitumen membrane in SAR 15–35 per m², XPS boards in SAR 12–30 per m², and crack injection in SAR 40–120 per metre. Epoxy coating, at SAR 35–90 per m², is usually reserved for floors and surfaces that need a harder finish. The right choice depends on where the water is coming from, which is why a site visit matters.

Before the visit, it helps to have a few details ready. Tell us which level is affected, how large the basement or lower floor area is in square metres, and where you have noticed water, such as at the floor edge, along a particular wall, or near a column. Mention whether the problem appears only after rain or all year, and whether the building has a shared basement or separate storage units. If there is a bathroom or tank in the same area, note that too, since bathroom waterproofing (SAR 15–40 per m²) and tank internal coating (SAR 25–60 per m²) are often assessed at the same time. Having these answers ready lets us give you a clearer scope before we arrive.

In apartment buildings, the floor below is often where a leak shows first.

When do you need basement & foundation waterproofing?

The following signs are worth checking before they grow:

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

Causes we see in the field

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

Tools we use in Aldarb

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.

Quick comparison: facts and costs in Aldarb

Questions from Aldarb

What we advise against

• 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.