Basement & foundation waterproofing in Jubail: cost & published offers

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

Basement & foundation waterproofing in Jubail: the local context

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data). Jubail is about 0.9 km from the sea coast (OpenStreetMap).

Team note on Jubail: 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 Jubail sits about 4 m above sea level, and the coast is only about 0.9 km away. That combination matters for basements and foundations. Low ground and a short distance to the sea mean that groundwater and salty moisture can sit close to the structure, so a waterproofing job here has to deal with pressure from below as well as water running in from the surface. Before any quote is accepted, the surveyor should check how high the water table is around the building and whether the basement walls are exposed to saline soil.

Because of these conditions, basement waterproofing in Jubail is usually priced at SAR 50–150 per m², which reflects the extra preparation needed when the wall is wet or salt-stained. Crack injection, priced at SAR 40–120 per metre, is often the first step, since small leaks at joints and cracks are the usual route for water to reach the inside. Where the wall is dry enough to coat, epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² are common choices, and XPS boards at SAR 12–30 per m² can be added on the outside where the excavation allows. Bitumen membrane, at SAR 15–35 per m², is another option for below-ground surfaces. Tank internal coating, at SAR 25–60 per m², follows the same logic for water storage in a damp setting.

Owners in this area often avoid a few common mistakes. They do not treat the basement as a single surface and skip the cracks, which tend to fail first. They do not ask for the wall to be dried and cleaned before coating, since moisture trapped under a membrane pushes it off. They do not assume the roof and bathroom work can use the same method; liquid roof waterproofing at SAR 8–25 per m² and bathroom waterproofing at SAR 15–40 per m² are priced and applied differently from the basement. Finally, they compare quotes by scope and surface area rather than by the lowest total, so the work actually covers the wet areas shown by the survey.

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

When do you need basement & foundation waterproofing?

If you notice one of these signs in Jubail, it is a good moment to talk to the team:

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

Where the problem usually comes from

• Rainwater draining towards the foundation.
• A high groundwater level — we check this before anything else.
• A common cause: cracks at construction joints.

Tools we use in Jubail

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 — Jubail

Short answers for Jubail

What we advise against

• 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.