Bathroom waterproofing in Khafji: for companies (annual contract)

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

Before we start: what we know about Khafji

Main roads in or near Khafji: King Abdullah Road. Team note on Khafji: 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..

Khafji is about 2 km from the sea coast (OpenStreetMap). The centre of Khafji sits about 9 m above sea level (SRTM open elevation data).

A company that runs offices, staff housing or a small hotel in Khafji usually faces the same problem: several bathrooms share the same water pressure and the same drainage, and a leak in one room can quietly damage the floor below. Picture a facilities manager who discovers a damp ceiling in a staff block, then finds that the tiles in two other bathrooms have started to lift. Because the building serves many people, each repair is a disruption, and the manager needs a plan that keeps every wet room sealed over time rather than patching one room at a time.

Khafji sits about 9 m above sea level, and the centre is about 2 km from the sea coast. For a company, this means the site is close enough to the coast for salty, humid air to affect surfaces, yet high enough that standing water is not the main concern. The practical risk is moisture moving through floor slabs and wall junctions, and that is exactly where bathroom waterproofing works best. Bathroom waterproofing is priced at SAR 15–40 per m², so a company can budget for a whole block on a consistent per-square-metre basis instead of reacting to each leak as it appears.

A sensible sequence starts with a survey of every bathroom, marking the floor areas, wall heights and any visible cracks. Next, the team should record which rooms sit above occupied space, because those need the strictest attention. Where cracks are found, crack injection at SAR 40–120 per metre can seal them before the main coating goes on. Epoxy coating at SAR 35–90 per m² or spray foam at SAR 20–45 per m² can then be chosen according to the surface and the traffic it will carry. Finally, the company should agree an annual schedule for inspection and touch-ups, so that small defects are caught early and the whole portfolio stays dry year after year.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

When do you need bathroom waterproofing?

If you notice one of these signs in Khafji, 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 damaged floor layer.
• Corners without waterproofing tape — we check this before anything else.

Tools and methods, and when we use them

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 — Khafji

Common questions about bathroom waterproofing in Khafji

Common mistakes we see

• 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.