Basement & foundation waterproofing in Jazan: with a verifiable technical report

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

What is specific about Jazan for basement & foundation waterproofing

The centre of Jazan sits about 7 m above sea level (SRTM open elevation data). Jazan is about 1.9 km from the sea coast (OpenStreetMap).

Team note on Jazan: 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 Jazan most often starts with water finding its way through cracks and the joints between wall and floor, especially after heavy rain when the ground around the structure becomes saturated. Hairline cracks in concrete walls can let moisture in for months before staining or a damp smell appears, so the first step is usually a close inspection of the wall and floor edges to map where water is entering. Repairs that address only the visible patch often fail because the water simply finds another route, so a sound approach looks at the whole below-ground envelope.

Jazan sits about 7 m above sea level, and the city centre is roughly 1.9 km from the coast. That combination means the ground is low-lying and close to the water table in many areas, so drainage around a basement can be slow to clear after storms and hydrostatic pressure can build against the walls. The proximity to the sea also means salt-laden moisture is a factor in some locations, which affects which materials last. Because of this, the approach often pairs an internal fix, such as crack injection or a coating, with attention to how the outside ground drains. Pricing reflects the scope: basement waterproofing typically runs SAR 50–150 per m², crack injection SAR 40–120 per metre, and epoxy coating SAR 35–90 per m², with the final figure depending on the surface area and condition of the wall.

Before booking a visit, ask the provider which method they propose for your specific wall and floor, and why. Ask whether they will inspect the cracks and the drainage around the structure, not just the damp patch you can see. Request a clear breakdown of the area being treated and the rate per m² or per metre for each part of the work, so you can compare quotes on the same basis. Ask what preparation you need to do in advance, such as clearing stored items from the basement. Finally, ask how they will confirm the work has stopped water entry before they leave, so you have a clear point to check the results.

Each job ends with a written report that carries a verification code you can check on our site.

When do you need basement & foundation waterproofing?

If you notice one of these signs in Jazan, 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 and methods, and when we use them

From the first visit to the report

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 Jazan

Questions from Jazan

Common mistakes we see

• Painting the basement wall while the water comes from outside

What you receive

The written output: the source, the treatment and the follow-up result. The report is numbered and can be checked with its verification code.