Basement & foundation waterproofing in Alzulfi: preventive periodic check

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

What is specific about Alzulfi for basement & foundation waterproofing

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..

Basement and foundation waterproofing in Alzulfi starts with the terrain. The centre of Alzulfi sits about 615 m above sea level, which places it on the high plateau rather than in a low-lying basin. That elevation shapes how water moves through the ground and how a basement should be protected. Before any quotation, the technician first looks at where water is likely to collect around the walls and floor, and whether the slab and perimeter have shown signs of seepage, efflorescence or hairline cracking. Preventive work is easier and more economical when these early signs are caught before the structure is saturated.

Several things are left to the site visit, because they depend on conditions a fact sheet cannot capture. The technician checks the actual depth of the basement, the condition of the existing finish, the width and direction of any cracks, and how the surrounding ground drains. Access and the surface to be treated also matter. Prices for this type of work are given per square metre or per metre of crack, and the final scope is set only after measuring. Typical ranges include SAR 50–150 per m² for basement waterproofing, SAR 40–120 per metre for crack injection, and SAR 35–90 per m² for epoxy coating. Which of these applies, and in what combination, is decided on site.

To help the technician, it is useful to have a few details ready: the approximate area of the basement walls and floor, any past repairs or leaks, whether the space is used for storage, living or machinery, and whether a water tank or bathroom sits nearby. Bathroom waterproofing falls within SAR 15–40 per m², tank internal coating within SAR 25–60 per m², and XPS boards within SAR 12–30 per m², so noting these nearby elements lets the visit cover the full picture. Clear notes on past water entry, including the season it occurred, give the technician the context needed to recommend a preventive system that suits the site.

Preventive checks follow a written schedule instead of waiting for a fault.

Signs worth paying attention to

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 — we check this before anything else.
• Rainwater draining towards the foundation — we check this before anything else.
• 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.

Alzulfi in facts and sources

Short answers for Alzulfi

Common mistakes we see

• 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.