Bathroom waterproofing in Khobar: cost & published offers

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

Bathroom waterproofing in Khobar: the local context

Team note on Khobar: 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.. Khobar is about 1.8 km from the sea coast (OpenStreetMap).

The centre of Khobar sits about 9 m above sea level (SRTM open elevation data).

Does bathroom waterproofing in Khobar cost much, and what do the published offers really cover? For most owners the answer starts with the area being treated. Bathroom waterproofing here is quoted at SAR 15–40 per m², a rate that sits well below basement work at SAR 50–150 per m², so a standard wet room is usually a far smaller job than structural protection. Epoxy coating, at SAR 35–90 per m², is the higher-end option for surfaces that need a harder finish. Spray foam, at SAR 20–45 per m², and bitumen membrane, at SAR 15–35 per m², sit in between. Because the rate depends on the material, the same floor can come in at very different totals, so compare offers on the same product and the same measured area.

The inspection starts with the floor and the walls around the shower, the drain, and the joint where the bathroom meets the rest of the flat. A technician checks for hairline cracks and, where a crack is found, prices it separately by the metre, typically SAR 40–120 per m, since crack injection is charged by length rather than area. The team also looks at how water moves toward the drain and whether there are any signs of past leakage on the ceiling below. Khobar's centre sits about 9 m above sea level and about 1.8 km from the coast, which means the ground is not flood-prone in the way low coastal sites can be, so the inspection focuses on the condition of the surfaces themselves rather than on the site's level.

Before the visit, gather the measurements of the bathroom floor and the wall height you want treated, along with any previous repair invoices. Note where you have seen damp, peeling paint, or staining, and whether the problem appears after showers or after rain. Clear the bathroom so the technician can reach the drain and the corners. Having these details ready lets the inspector give you a quote per square metre and per metre of crack, so the final figure is easy to check against the published rates.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs that call for bathroom waterproofing

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

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.

Khobar in facts and sources

Common questions about bathroom waterproofing in Khobar

Mistakes that cost more

• Waterproofing the floor while the supply pipe still leaks

What you receive

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