Basement & foundation waterproofing for apartments in Aldawadmi

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

What is specific about Aldawadmi for basement & foundation waterproofing

Main roads in or near Aldawadmi: King Abdulaziz Road, Dawadmi Bujadiyah Road. The centre of Aldawadmi sits about 976 m above sea level (SRTM open elevation data).

Team note on Aldawadmi: 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..

Before anything else, a technician in Aldawadmi checks the lowest level of the building first, because basement and foundation walls are where water is most likely to enter and where the cost of a mistake is highest. The centre of Aldawadmi sits about 976 m above sea level, which means the town is on high ground, but that does not prevent water from collecting around foundations after rain, especially where drainage around the building is poor or where the ground slopes toward the structure. Crack injection is priced at SAR 40–120 per metre, so every visible crack in a basement wall or floor is measured and noted early. Basement waterproofing itself ranges from SAR 50–150 per m², and the choice between approaches depends on what is found during the inspection rather than on a fixed rule.

Several things cannot be settled from a description and are left to the site visit. The technician needs to see the actual condition of the walls, whether the moisture is rising from the floor, seeping through the wall, or coming from a leaking pipe or bathroom above. Bathroom waterproofing, priced at SAR 15–40 per m², is often a separate job, and it is only confirmed once the source is traced. Epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² are each suited to different surfaces and moisture levels, so the final method is chosen on site. Roof work is treated the same way: liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² are both possible, and the right one depends on the roof's slope, age and exposure.

To help the technician prepare, it is useful to have the following ready: the floor plan of the basement or affected level, the approximate area of walls and floor in square metres, any previous repair records, and a note of when water is seen most often, such as after heavy rain or during certain seasons. If a water tank is part of the problem, tank internal coating at SAR 25–60 per m² can be quoted once its surface area is known. Insulation boards such as XPS, at SAR 12–30 per m², may also be relevant where the outer wall is accessible. Clear answers to these questions let the technician arrive ready to inspect quickly and give an accurate estimate on the same visit.

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

Signs worth paying attention to

If you notice one of these signs in Aldawadmi, 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

Causes we see in the field

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

Tools and methods, and when we use them

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.

Facts and costs — Aldawadmi

Common questions about basement & foundation waterproofing in Aldawadmi

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.