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

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

Why basement & foundation waterproofing differs in Ahad Almasarihah

Team note on Ahad Almasarihah: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins.. The centre of Ahad Almasarihah sits about 667 m above sea level (SRTM open elevation data).

The centre of Ahad Almasarihah sits about 667 m above sea level, according to SRTM open elevation data, and that height shapes where water tends to collect and how a basement is first assessed. Before any quote is given, the technician looks at the lowest points of the structure, the walls that meet the ground, and any signs of past seepage. Basement waterproofing in this area is usually priced between SAR 50 and SAR 150 per m², so the first walk-through matters, because the scope of the work decides which system fits the budget. Crack injection, priced at SAR 40 to SAR 120 per metre, is often the first line of inspection because a single open crack can undo an otherwise sound membrane.

The site visit is where the final decisions are made. The technician measures the affected area, confirms whether the problem is rising damp, lateral water or water coming through the roof, and checks the condition of the substrate. Options such as epoxy coating at SAR 35 to SAR 90 per m², spray foam at SAR 20 to SAR 45 per m², or XPS boards at SAR 12 to SAR 30 per m² are compared on site, not on paper. Bitumen membrane at SAR 15 to SAR 35 per m² and liquid roof waterproofing at SAR 8 to SAR 25 per m² are considered only where the same conditions apply. Any tank or bathroom work is assessed separately, since tank internal coating runs SAR 25 to SAR 60 per m² and bathroom waterproofing SAR 15 to SAR 40 per m².

To help the technician, have the following ready: the age of the building, any previous repair records, the location of drains and sumps, and photographs taken after rain if possible. Note which rooms flood, how often, and whether the water comes from the floor, the walls or above. Clear access to the basement and to any tanks saves time. Information about past works, including materials used, allows the technician to avoid incompatible coatings. With these details in hand, the visit can focus on finding the cause rather than repeating basic checks.

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 Ahad Almasarihah, it is a good moment to talk to the team:

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

Causes we see in the field

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

Tools we use in Ahad Almasarihah

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.

Quick comparison: facts and costs in Ahad Almasarihah

Questions from Ahad Almasarihah

What we advise against

• Painting the basement wall while the water comes from outside

The written outputs

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