Basement & foundation waterproofing for warehouses in Tabarjal

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

Why basement & foundation waterproofing differs in Tabarjal

Team note on Tabarjal: 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 Tabarjal sits about 548 m above sea level (SRTM open elevation data).

Water entering a warehouse basement or foundation usually starts at the floor-to-wall joint and along cracks in the slab, where hydrostatic pressure pushes moisture up through the concrete. In Tabarjal, a warehouse owner should expect this problem to show up first as damp patches and efflorescence on lower walls, not as a sudden flood. Crack injection is often priced at SAR 40–120 per metre, so surveying the length of visible cracks early helps set a realistic scope before any membrane work is quoted.

The local setting shapes the approach. The centre of Tabarjal sits about 548 m above sea level, which means the ground is not a low-lying basin where water collects naturally, but runoff from higher terrain can still find its way toward foundation edges during heavy rain. That makes drainage around the perimeter, and how the waterproofing system ties into it, just as important as the membrane itself. For large floor areas, basement waterproofing typically runs SAR 50–150 per m², while epoxy coating on the slab surface is SAR 35–90 per m². Where a warehouse also has a water tank on site, internal tank coating at SAR 25–60 per m² is a separate line item and should not be bundled casually into the basement scope.

Before the visit, ask the provider to confirm exactly which surfaces are included: the basement walls, the floor slab, the joints, and any roof areas, since liquid roof waterproofing (SAR 8–25 per m²) and bitumen membrane (SAR 15–35 per m²) are priced separately. Ask how they will locate the source of water rather than only sealing the surface, and whether insulation boards such as XPS (SAR 12–30 per m²) are proposed for wall protection and why. Request a written breakdown by square metre and by linear metre, so you can compare the scope against your own measurements of the warehouse and its cracks.

For warehouses, work is phased around operations and stored goods.

When do you need basement & foundation waterproofing?

The following signs are worth checking before they grow:

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

Tools we use in Tabarjal

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 Tabarjal

Questions from Tabarjal

Common mistakes we see

• 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.