Basement & foundation waterproofing for warehouses in Alzulfi

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

Basement & foundation waterproofing in Alzulfi: the local context

Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road. The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data).

Team note on Alzulfi: 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 warehouses in Alzulfi, the most common foundation problem is water tracking through cracks and the joints between the floor slab and the walls. Most of the damage we see comes from slow seepage that builds up over time, rather than from a single dramatic leak. Stored stock is often the first thing affected, and by the time damp patches show on the floor, the moisture has usually been present for a while. Crack injection, priced at SAR 40–120 per metre, is often the starting point, and it is frequently paired with a wider basement waterproofing treatment at SAR 50–150 per m² where the problem covers a larger area.

Alzulfi sits at about 615 m above sea level, which shapes how we approach these jobs. The centre of the town is elevated, so the site is not a low point where water pools from the surrounding land, but that does not rule out water moving through the ground and rising against foundation walls after rain. We therefore look at how water reaches the structure, not only at where it shows up inside. Where a warehouse has an internal basement or a below-grade store, we often combine a membrane or coating with attention to drainage around the outside. For interior floors that need a tougher finish, epoxy coating at SAR 35–90 per m² can be a practical option, and spray foam at SAR 20–45 per m² suits some wall and void areas.

Before the visit, it helps to have a few things ready. Tell us the approximate floor area of the basement or below-grade space, since basement waterproofing is quoted per square metre. Note where you have seen water, whether it appears after rain, and whether any cracks are visible, so we can estimate the length of crack injection needed. Let us know whether the warehouse has a roof that also leaks, because liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² are priced separately. If there is a water tank on site, mention it, as tank internal coating at SAR 25–60 per m² is a different job. Clear answers to these questions let us arrange a visit that covers the real problem from the start.

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

When do you need basement & foundation waterproofing?

These are the signs most often linked to basement & foundation waterproofing:

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

Where the problem usually comes from

• A common cause: a high groundwater level.
• A common cause: rainwater draining towards the foundation.
• A common cause: cracks at construction joints.

Tools we use in Alzulfi

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 — Alzulfi

Short answers for Alzulfi

Mistakes that cost more

• Painting the basement wall while the water comes from outside

What you get after the work

You receive: the source, the treatment and the follow-up result, in a technical report with a verification code.