Basement & foundation waterproofing in Aldawadmi: before buying or handover

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

Before we start: what we know about Aldawadmi

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.. 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).

The centre of Aldawadmi sits about 976 m above sea level, which places the town on high ground within the Riyadh region's plateau landscape. Elevation matters for waterproofing because sites at this height do not usually sit in a natural flood path, yet the surrounding terrain can still channel rainwater toward low points around buildings. Before any work begins, a surveyor should check how surface water moves across your plot, since that flow, rather than the altitude alone, determines the water pressure that will test your basement walls and foundation.

Those conditions shape the scope and the price of the work. Basement waterproofing is quoted at SAR 50–150 per m², and crack injection at SAR 40–120 per metre, so the length of visible cracking and the extent of the basement wall area should be measured first. Epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² are different products for different surfaces, so ask which one suits your wall condition. For roofs, liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² each suit different roof layouts. Tanks need their own treatment, with tank internal coating at SAR 25–60 per m², and insulation boards such as XPS boards at SAR 12–30 per m² can be added where thermal control matters.

Owners in Aldawadmi commonly avoid several mistakes. They do not accept a single lump-sum figure without a per-square-metre breakdown, because that hides which areas are actually being treated. They do not skip the crack survey, since sealing a wall without locating the source of seepage often leads to repeat leaks. They do not choose a bathroom-grade product for a basement wall that bears constant pressure, and they do not let work proceed without a written list of surfaces, products and measurements. Asking for these details at the start keeps the job clear, comparable and easier to check once it is finished.

Before buying or taking over a property, an inspection gives you findings in writing before you sign.

When do you need basement & foundation waterproofing?

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

How we choose the tool in Aldawadmi

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 Aldawadmi

Common questions about basement & foundation waterproofing in Aldawadmi

Mistakes that cost more

• 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.