Basement & foundation waterproofing in Almikhwah: for companies (annual contract)

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

Before we start: what we know about Almikhwah

The centre of Almikhwah sits about 419 m above sea level (SRTM open elevation data).

Basement and foundation waterproofing in Almikhwah begins with the ground itself. The centre of Almikhwah sits about 419 m above sea level, which places the district on higher ground than many coastal parts of the Kingdom. Technicians should not assume that a site on elevated land is free of water pressure, because groundwater and surface runoff still find their way toward walls and slabs. Before any quote is prepared, the first check is whether the basement walls show signs of past moisture, staining, efflorescence or spalling, since these show where water has already entered.

Several items are left to the site visit, because they cannot be judged from a desk. The technician should inspect cracks in the slab and walls, measure their length so that crack injection can be scoped (priced at SAR 40–120 per metre), and identify whether the surface suits a bitumen membrane (SAR 15–35 per m²), spray foam (SAR 20–45 per m²) or XPS boards (SAR 12–30 per m²). Basement waterproofing itself is priced at SAR 50–150 per m², so the measured area and the condition of the substrate will decide where in that range the job falls. Any water storage tanks within the basement should be checked for internal coating needs at SAR 25–60 per m², and any wet areas need a separate look at bathroom waterproofing (SAR 15–40 per m²) or epoxy coating (SAR 35–90 per m²). Liquid roof waterproofing, at SAR 8–25 per m², is a separate scope and should be recorded apart from the basement works.

To help the technician, record the basement area in square metres, the total crack length in metres, and the locations of any tanks or wet rooms, so that each element can be priced against the correct rate. Note the drainage around the building and any visible ponding after rain, since these affect which system is most suitable. Photograph wall and floor conditions before work starts, and keep a clear note of the moisture marks observed. Passing these details to the site team in a single sheet allows a faster and more accurate scope, and it lets the client understand exactly which rate applies to each part of the job.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

Signs that call for basement & foundation waterproofing

If you notice one of these signs in Almikhwah, it is a good moment to talk to the team:

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

Where the problem usually comes from

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

How we choose the tool in Almikhwah

The steps in order

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 — Almikhwah

Short answers for Almikhwah

What we advise against

• Painting the basement wall while the water comes from outside

What you get after the work

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