Basement & foundation waterproofing in Alqunfudhah: cost & published offers

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

Before we start: what we know about Alqunfudhah

Team note on Alqunfudhah: 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.. Alqunfudhah is about 0.4 km from the sea coast (OpenStreetMap).

The centre of Alqunfudhah sits about 7 m above sea level (SRTM open elevation data).

Basement and foundation leaks in Alqunfudhah usually start with water pressing in through wall joints and hairline cracks at the base of the wall, where the slab meets the footing. Many owners first notice damp patches, a musty smell or efflorescence, and assume the problem is only surface moisture. In practice, the water is often moving sideways through the ground, so a coat applied only to the visible face rarely solves it for long.

The local setting changes how this work should be approached. The centre of Alqunfudhah sits about 7 m above sea level and lies about 0.4 km from the sea coast, which means the soil around a basement can stay wet and saline for long periods. Because of this closeness to the coast, the surfaces and any existing coatings should be checked for salt build-up before a new system is chosen, and the membrane needs to be continuous across the joints rather than patched in sections. Crack injection, which is priced per metre at SAR 40–120 per m, is often the first step where cracks are active, followed by a full-area system. Basement waterproofing itself is priced at SAR 50–150 per m², so the choice between a membrane, an epoxy coating, or insulating boards depends on how much water is present and how the wall is exposed.

Before the visit, ask the provider to explain which system they recommend and why, and to show how the joints and cracks will be treated, not only the open wall area. Ask whether they will check the surface for salts and moisture before quoting, and how the work will be prepared around the foundation. Request a per-square-metre and per-metre breakdown so you can compare each line item, including crack injection, membrane, and any boards. Finally, ask how the area will be protected during curing and what the provider will do if water appears again after the first rains.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs that call for basement & foundation waterproofing

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

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

Causes we see in the field

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

How we choose the tool in Alqunfudhah

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.

Facts and costs — Alqunfudhah

Common questions about basement & foundation waterproofing in Alqunfudhah

What we advise against

• Painting the basement wall while the water comes from outside

What you receive

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