Bathroom waterproofing for apartments in Alnuayriyah

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

Before we start: what we know about Alnuayriyah

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

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 first thing a technician checks in Alnuayriyah is the ground the building sits on, because the centre of Alnuayriyah sits about 49 m above sea level, which means drainage and groundwater behave differently from low coastal plots. In a bathroom, that matters less for rising damp than for the water that moves through the floor and walls from daily use. The first checks are the floor falls toward the drain, the condition of the existing screed, the state of the tile joints, and any hairline cracks where the wall meets the floor. Where a bathroom waterproofing job is priced, the usual range runs from SAR 15–40 per m², and that figure is a reminder that the surface area measured on site, not the room's appearance, decides the cost.

Some things can only be settled at the site visit. The technician needs to see whether the existing membrane has failed, whether the old tiles can stay or must come off, and how the shower tray and pipe penetrations are sealed. Crack injection, if needed, is priced per metre at SAR 40–120 per m, so the length of every crack has to be measured in person and not estimated from photos. The choice between epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², or a bitumen membrane at SAR 15–35 per m² also depends on what the visit reveals about movement, moisture and the access available in a finished flat. Nothing in this list should be decided before someone has stood in the bathroom.

To help the technician, the resident should prepare a short account of the problem before the visit: where the damp first appeared, whether it is worse after showering or after rain, which floor the flat sits on, and whether the flat below has noticed staining. Clear access to the bathroom, the shower area and the neighbouring wall lets the work be scoped properly. Photographs of the affected corners taken in daylight are useful, as is a note of any previous repairs. This information lets the technician reach a sound quote quickly and avoids surprises once the work begins in Alnuayriyah.

In apartment buildings, the floor below is often where a leak shows first.

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 around the shower
• A stain under the bathroom on the floor below
• Worn grout

The most common causes

• A damaged floor layer.
• A common cause: corners without waterproofing tape.
• The area around the floor drain.

How we choose the tool in Alnuayriyah

How the work is done, step by step

1. Finding the source: A supply-pipe leak is ruled out first.
2. Preparation: The floor is opened and cleaned where needed.
3. Corners and details: Tape and detailing at corners, drains and pipe entries.
4. Flood test: The floor is tested before tiling.

Facts and costs — Alnuayriyah

Common questions about bathroom waterproofing in Alnuayriyah

What we advise against

• Waterproofing the floor while the supply pipe still leaks

What you get after the work

The written output: the flood-test result and photos of each stage. The report is numbered and can be checked with its verification code.