Basement & foundation waterproofing for restaurants in Qatif

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

Basement & foundation waterproofing in Qatif: the local context

The centre of Qatif sits about 5 m above sea level (SRTM open elevation data). Qatif is about 2.5 km from the sea coast (OpenStreetMap).

Team note on Qatif: 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..

Qatif sits about 5 m above sea level, and its centre is roughly 2.5 km from the coast. That combination means the ground here is low-lying and sits close to a marine environment, so groundwater and salt-laden moisture can reach a restaurant's lower levels more easily than in higher inland areas. For a basement kitchen, storage room or cold room, this is the first thing we assess on site: how water is likely to move through the soil and how much salt exposure the walls will face over time.

Because the city sits so close to the sea and so near the water table, our approach to basement and foundation work for restaurants starts with the wall and floor surfaces that take the most pressure. Basement waterproofing is priced from SAR 50–150 per m², and the final figure depends on the wall area, access, and whether the work is a new build or a retrofit. Where cracks appear, crack injection is priced at SAR 40–120 per metre, which lets us seal the defect before a full membrane is applied. Epoxy coating, at SAR 35–90 per m², is often used on floors and wet zones where chemicals, cleaning water and foot traffic are constant. Spray foam at SAR 20–45 per m² suits irregular surfaces, and XPS boards at SAR 12–30 per m² can add insulation alongside protection where a cold room is involved.

Owners who work with us tend to avoid several common mistakes. They do not skip the crack survey and treat only the visible damage, because hidden cracks let water in again within months. They do not choose the cheapest coating without checking how it bonds to damp concrete, since poor adhesion is what causes lifting. They do not leave drainage and ground levels out of the plan, which is especially important at this elevation. They also avoid mixing materials without confirming compatibility, and they do not postpone repairs until a leak reaches the kitchen floor, when cleaning, stock loss and downtime cost far more than early sealing.

For restaurants, visits are planned outside service hours and recorded for the premises file.

When do you need basement & foundation waterproofing?

The following signs are worth checking before they grow:

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

The most common causes

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

How we choose the tool in Qatif

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.

Facts and costs — Qatif

Short answers for Qatif

Mistakes that cost more

• Painting the basement wall while the water comes from outside

What you get after the work

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