Basement & foundation waterproofing for restaurants in Alnuayriyah

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

Before we start: what we know about Alnuayriyah

The centre of Alnuayriyah sits about 49 m above sea level (SRTM open elevation data). Main roads in or near Alnuayriyah: King Abdulaziz Road.

Team note on Alnuayriyah: 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 Alnuayriyah sits about 49 m above sea level, according to SRTM open elevation data. For a restaurant owner, that elevation matters less for its height than for the way water moves across the ground. Sites at this level can still collect surface runoff after heavy rain, and that water finds its way toward the lowest point it can reach, which is often a basement or a service room below the kitchen. Our assessment therefore starts with the slope around the building, the drainage path, and the depth of any basement, before any product is chosen.

Each of these local conditions links directly to how we work. Because the water table and runoff behaviour vary from one plot to the next, we treat basement waterproofing as a priced item per m², typically SAR 50–150 per m², with the final figure set by the wall and floor area we measure on site. Where a restaurant has a bathroom or staff toilet near a drain line, bathroom waterproofing is quoted separately at SAR 15–40 per m². Cracks in an older slab are sealed by crack injection at SAR 40–120 per metre, which suits a building whose foundations have settled slightly over time. Epoxy coating, at SAR 35–90 per m², is used on floors where grease and cleaning chemicals are common, and spray foam, at SAR 20–45 per m², suits irregular surfaces where a membrane would not sit flat.

Owners also commonly make a few avoidable mistakes, and our service is designed to prevent them. Many leave a basement sealed with a coating but skip the repair of the cracks beneath it, so water simply finds a new route. Others choose a roof system without checking the slope, which lets water pool at the low points; liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m² both depend on correct falls. Some fit XPS boards at SAR 12–30 per m² against a wall that is still damp, and some overlook water storage: tank internal coating at SAR 25–60 per m² protects the water supply a kitchen depends on. We check each of these points before any work begins.

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

Signs worth paying attention to

If you notice one of these signs in Alnuayriyah, 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

The most common causes

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

How we choose the tool in Alnuayriyah

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 — Alnuayriyah

Questions from Alnuayriyah

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.