Bathroom waterproofing in Alkharj: before summer & rain season

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

Bathroom waterproofing in Alkharj: the local context

Team note on Alkharj: 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 Alkharj sits about 439 m above sea level (SRTM open elevation data).

Main roads in or near Alkharj: King Abdullah Road.

The centre of Alkharj sits about 439 m above sea level (SRTM open elevation data), so the first thing a technician checks in a bathroom is how water will move across the floor and out of the room before summer heat and the rain season arrive. Start with the floor falls toward the drain, the condition of old tile grout, and any hairline cracks where the wall meets the floor. Bathroom waterproofing is priced at SAR 15–40 per m², and the choice of system depends on what the existing surface can take, so the visit begins by testing whether the substrate is sound, dry and free of dust.

The site visit settles the questions that cannot be answered from a description alone. The technician measures the wet area, checks whether the floor is already sloped, looks for signs of past leaks on the ceiling below, and decides between a liquid membrane, an epoxy coating at SAR 35–90 per m², or a spray foam at SAR 20–45 per m² where the surface suits it. Any crack that runs through the slab is assessed on the spot, because crack injection is charged at SAR 40–120 per metre and the length cannot be judged accurately from a photo. Access to the room, whether fittings can be lifted, and where the shower screen and toilet sit are also confirmed in person.

To help the technician prepare, note the age of the bathroom, any previous waterproofing you know of, and whether water has ever appeared in the room below or behind the walls. Tell the team which days the bathroom can be out of use, and clear the area of personal items and toiletries before the visit. If the bathroom is above a shared space or a water tank, mention that, because a tank internal coating is quoted separately at SAR 25–60 per m². Keep the drain and the access panels visible, and let the technician know if there is a smell of damp or any discolouration on the paint, as these details shape the final scope and quotation.

Checks before summer and before the rain season catch problems while they are still small.

Signs that call for bathroom waterproofing

These are the signs most often linked to bathroom waterproofing:

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

Where the problem usually comes from

• The area around the floor drain.
• Corners without waterproofing tape — we check this before anything else.
• A damaged floor layer — we check this before anything else.

Tools and methods, and when we use them

The steps in order

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.

Quick comparison: facts and costs in Alkharj

Questions from Alkharj

Mistakes that cost more

• Waterproofing the floor while the supply pipe still leaks

What you receive

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