Floor & balcony waterproofing for apartments in Jubail

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

What is specific about Jubail for floor & balcony waterproofing

Team note on Jubail: 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 Jubail sits about 4 m above sea level (SRTM open elevation data).

Jubail is about 0.9 km from the sea coast (OpenStreetMap).

Before any material is chosen for a floor or balcony in Jubail, the first check is how close the building sits to the water. The centre of Jubail sits about 4 m above sea level, and the town is about 0.9 km from the sea coast. Both facts matter because salt-laden air and a high water table can speed up the breakdown of surface coatings and make moisture harder to shed from a slab. For that reason the technician looks first at the slab edges, drainage outlets, and any spot where water already sits or stains the finish, since these show how the sea-side conditions are reaching this particular unit.

Other points are left to the site visit, because they depend on what is physically in front of the technician. Whether a balcony has cracks that need injecting, how far the existing finish has lifted, the condition of the falls toward the drain, and whether the floor is over an occupied space below all have to be seen in person. The technician also checks whether a bathroom or wet area adjoins the balcony, since water from one can reach the other. Prices for work such as crack injection, which is quoted at SAR 40–120 per metre, or liquid roof waterproofing at SAR 8–25 per m², depend on measured quantities, so no firm figure is set until the area and defects have been recorded on site.

To help the technician arrive prepared, residents are asked to share a few details in advance. Note the approximate floor area of the balcony or terrace, the floor level of the apartment, and whether the surface has been coated before and when. Mention any staining, blistering, or cracks you have noticed, and whether water collects after rain. Tell the team if the balcony is partly covered, or if it is used for washing or as a garden, because foot traffic and standing water both affect the choice of system. Clear access to the balcony and to the flat below, where the ceiling might show damp, will let the visit cover everything in one session.

In apartment buildings, the floor below is often where a leak shows first.

When do you need floor & balcony waterproofing?

The following signs are worth checking before they grow:

• Damp under the light well
• Water passing from the balcony to the floor below
• A wrong fall towards the door threshold

Causes we see in the field

• A blocked drain — we check this before anything else.
• A threshold without waterproofing — we check this before anything else.
• A common cause: incorrect falls.

Tools we use in Jubail

From the first visit to the report

1. Checking the falls: Where water collects and where it should go.
2. Details: Thresholds, drains and upstands.
3. Waterproofing: The layer is applied and protected.
4. Flood test: Tested before the finish goes on.

Facts and costs — Jubail

Common questions about floor & balcony waterproofing in Jubail

Mistakes that cost more

• Tiling a balcony without waterproofing

What you get after the work

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