Basement & foundation waterproofing for schools in Aldawadmi

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

Before we start: what we know about Aldawadmi

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

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..

For schools in Aldawadmi, the most common foundation and basement problem is water seeping through walls and floors below ground level, usually after rain or where groundwater builds up around the foundations. Because school basements often hold storage rooms, plant rooms or activity spaces, even a small leak can spread damp, mould and damage to equipment quickly. The aim of any waterproofing job is to stop the water at its source, not just cover the surface.

Aldawadmi sits at roughly 976 m above sea level, so the town is at a notable height and the surrounding ground can behave differently from low-lying coastal sites. Changes in the ground and the way water moves through it mean the fix is shaped by the specific wall and floor conditions rather than a single standard method. Basement waterproofing is typically priced at SAR 50–150 per m², crack injection at SAR 40–120 per metre, and epoxy coating at SAR 35–90 per m², with spray foam at SAR 20–45 per m² and bitumen membrane at SAR 15–35 per m² as other options. The right choice depends on where the water is entering and how the building is used.

Before the visit, ask the provider to confirm which areas of the school are affected, such as basement walls, floors, or joints, and when the leaks happen. Ask for a clear written breakdown of the method proposed for each area and the unit rate that applies. Check whether the quote covers any crack injection separately, and ask how they will work around school hours so classrooms are not disrupted. Finally, ask what preparation the school needs to complete, such as clearing storage, so the visit can focus on finding and sealing the source.

For schools, the larger jobs are planned for weekends and holidays.

Signs that call for basement & foundation waterproofing

The following signs are worth checking before they grow:

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

Causes we see in the field

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

Tools we use 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.

Facts and costs — Aldawadmi

Short answers for Aldawadmi

Common mistakes we see

• Painting the basement wall while the water comes from outside

The written outputs

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