Basement & foundation waterproofing for villas in Alrass

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

What is specific about Alrass for basement & foundation waterproofing

Team note on Alrass: 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 Alrass: King Abdulaziz Road, King Fahd Road, King Salman Road.

The centre of Alrass sits about 695 m above sea level (SRTM open elevation data).

Is a damp or leaking basement under a villa in Alrass something that can be fixed without tearing up the whole floor? In most cases, yes, but the right approach depends on where the water is entering. Alrass sits about 695 m above sea level, and that is the first fact that shapes how we think about the job. The centre of Alrass is at roughly 695 m above sea level, so the ground and drainage around a villa behave differently than they would on the coast. Our pricing for basement waterproofing runs from SAR 50 to SAR 150 per m², while crack injection is priced separately at SAR 40 to SAR 120 per metre, so a visible crack in a basement wall can often be sealed without treating the whole area.

The inspection starts with a walk through the basement and the outside perimeter. We look for cracks in the walls and floor slab, check how water is tracking through the surface, and note any staining, efflorescence or softened plaster. Where the damage shows up in wet rooms above ground, we inspect those areas as well, since bathroom waterproofing is priced at SAR 15 to SAR 40 per m² and is often part of the same problem. For larger basement areas we also discuss whether an epoxy coating at SAR 35 to SAR 90 per m², a spray foam at SAR 20 to SAR 45 per m², or a bitumen membrane at SAR 15 to SAR 35 per m² suits the wall condition. Roof areas are checked separately, and liquid roof waterproofing at SAR 8 to SAR 25 per m² is a common choice there.

Before the visit, it helps to clear the walls and floor where you can, so the inspector can see the surface properly. Note when you first noticed water, whether it appears after rain or on a steady basis, and any rooms that feel damp. If there is a water tank in the property, mention it, because tank internal coating is priced at SAR 25 to SAR 60 per m² and is checked during the same visit. Having photos of the problem areas ready will also speed up the assessment. With these details in hand, the inspector can give you a clear scope and a realistic cost range for your villa.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

Signs worth paying attention to

If you notice one of these signs in Alrass, 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 common cause: a high groundwater level.
• Rainwater draining towards the foundation — we check this before anything else.

Tools we use in Alrass

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.

Quick comparison: facts and costs in Alrass

Short answers for Alrass

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.