Bathroom waterproofing for restaurants in Jeddah

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

Bathroom waterproofing in Jeddah: the local context

Team note on Jeddah: 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 Jeddah sits about 15 m above sea level (SRTM open elevation data).

Jeddah is about 2 km from the sea coast (OpenStreetMap).

Does a restaurant bathroom in Jeddah really need a separate waterproofing plan? The short answer is yes, and the reason starts with the location. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data), and the city is about 2 km from the sea coast (OpenStreetMap). Those facts mean the air is humid and salty for much of the year, and wet floors in a busy restaurant toilet face constant water use, cleaning and foot traffic. Bathroom waterproofing for restaurants is priced at SAR 15–40 per m², which is a modest cost compared with the damage that seepage can cause to the rooms beneath and beside it.

Our inspection starts with a walk through the bathroom and the areas around it, looking at floor falls, drains, wall junctions and any cracks in the screed or tiling. Where cracks are found, crack injection is priced at SAR 40–125 per metre, so the team measures each crack length before recommending a fix. The surface is then assessed for the right system. Epoxy coating runs at SAR 35–95 per m², spray foam at SAR 20–45 per m², and a bitumen membrane at SAR 15–35 per m², so the recommendation follows the condition of the substrate rather than a single standard product. The inspector records measured areas and notes any adjacent walls that may need the same treatment, so the quote reflects what is actually on site.

Before the visit, please clear the bathroom floor and the space under the sink and around the drains, so the inspector can reach every corner. Note any leaks, damp patches, odours or stains you have seen, including where and when they appeared, because these details guide where to look first. If the bathroom sits above a kitchen, store room or staff area, let us know so access can be arranged to those spaces too. Have a rough plan of the room dimensions ready, and make sure someone who knows the restaurant's daily cleaning routine is available to answer questions during the walk-through.

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

When do you need bathroom waterproofing?

If you notice one of these signs in Jeddah, it is a good moment to talk to the team:

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

Causes we see in the field

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

Tools we use in Jeddah

From the first visit to the report

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 Jeddah

Common questions about bathroom waterproofing in Jeddah

Common mistakes we see

• Waterproofing the floor while the supply pipe still leaks

The written outputs

You receive: the flood-test result and photos of each stage, in a technical report with a verification code.