Bathroom waterproofing for apartments in Sharurah

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

Before we start: what we know about Sharurah

Team note on Sharurah: 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.. Main roads in or near Sharurah: King Abdulaziz Road, King Fahd Road.

The centre of Sharurah sits about 724 m above sea level (SRTM open elevation data).

The most common problem with bathroom waterproofing in apartments is water slowly escaping past a tired seal or a hairline crack in the floor and walls, then showing up as damp patches, peeling paint or a soft skirting board in the flat below. In apartments this is especially awkward because the damage often hides behind tiles and in shared ceilings, so a leak can run for months before anyone sees it. For bathroom waterproofing the usual cost range is SAR 15–40 per m², which covers the sealing work itself, while larger repairs such as crack injection are priced separately at SAR 40–120 per m.

In Sharurah the centre sits about 724 m above sea level, which matters for how a bathroom is planned and sealed. At that height the climate is generally drier than the coast, but the seasonal swings in temperature mean tiles, grout and sealants expand and contract, so a coating that is flexible enough to move with the substrate tends to outlast a rigid one. For this reason a spray foam or epoxy system may suit some floors better than a thin brush-on layer, with epoxy coating priced at SAR 35–90 per m² and spray foam at SAR 20–45 per m². The approach is always to match the system to the surface and the movement it will see, not to pick the cheapest option by default.

Before the visit, ask the provider which system they propose for your specific floor and walls, and why. Ask how they will test for existing cracks or failed seals before any new layer goes on, and whether they will repair those first. Confirm the measured area in square metres so the quote can be checked against the rate, and ask what the price covers, including preparation, materials and any injection work. Finally, ask who will be on site and how you will be kept informed, particularly if the flat below you is affected. Clear answers to these questions will tell you far more about the job than the brochure will.

In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.

Signs that call for bathroom waterproofing

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

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

Causes we see in the field

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

Tools and methods, and when we use them

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.

Facts and costs — Sharurah

Common questions about bathroom waterproofing in Sharurah

Mistakes that cost more

• 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.