Basement & foundation waterproofing in Arar: with a verifiable technical report

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

Basement & foundation waterproofing in Arar: the local context

The centre of Arar sits about 553 m above sea level (SRTM open elevation data).

Basement and foundation waterproofing in Arar starts with the ground the building sits on. The centre of Arar sits about 553 m above sea level (SRTM open elevation data), which means the site is not a low-lying hollow where surface water collects, but it still needs a careful look at how water moves toward the walls. Before anything is quoted, the technician checks the wall line, the floor slab and any visible cracks, since these are the points where moisture usually enters a basement. The first question is simply where the water is coming from and whether the problem is at the wall, at the floor joint or at a crack that has opened under load.

Several things are left to the site visit because they cannot be judged from a description. The technician needs to see the actual wall condition, measure the affected area, and decide whether the work calls for basement waterproofing, which is priced in the range of SAR 50–150 per m², or a narrower repair such as crack injection, priced at SAR 40–120 per metre. Other options on the list include epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², bitumen membrane at SAR 15–35 per m², and XPS boards at SAR 12–30 per m². Which of these fits depends on the wall, the access and what the owner wants to achieve. Any figure shown here is a general range, and the final cost is only confirmed after the visit.

To help the technician arrive prepared, it is useful to note where the damp appears, how long it has been present, and whether it rises after rain or stays constant. Photographs of the affected walls and floors, the age of the building, and any past repairs are also helpful. If the basement is used for storage, a tank or a finished room, say so, because this changes the material choice; for example, a tank internal coating is priced at SAR 25–60 per m², and a finished room may need a different approach from bare concrete. Clear access to the wall line and a note of any furniture or fittings that must be moved will save time on the day.

Each job ends with a written report that carries a verification code you can check on our site.

When do you need 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

Causes we see in the field

• A common cause: 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.

How we choose the tool in Arar

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.

Arar in facts and sources

Questions from Arar

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.