Floor & balcony waterproofing in Jubail: without breaking

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

What is specific about Jubail for floor & balcony waterproofing

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).

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..

Jubail sits only about 4 m above sea level, and the coast is roughly 0.9 km away, so the salty, humid air is a real factor for floors and balconies here. Before any work is quoted, the first thing checked is how close the surface sits to that moist coastal air and whether water has been travelling sideways or upward through the slab edges, since both show up quickly in this kind of setting. The technician looks at the balcony drainage, the junction between floor and wall, and any old sealant that has lost its grip, because these are the points where salt-laden moisture most often gets in and where a neat surface repair will fail later.

Several things are left to the site visit, because they cannot be judged from a description or a photograph. The exact condition of the existing layer, whether it is tiled, screeded or bare concrete, determines how much preparation is needed. The width and depth of any cracks, and whether they are still moving, decide if they can simply be injected or need opening up first. The slope of the surface, the number of drain outlets, and whether water currently pools in any spot are all recorded on the day. The technician also confirms the area in square metres and any run of cracking in metres, so that the final cost is based on measured figures rather than estimates made from a distance.

Information that helps the technician makes the visit faster and more accurate. Please note any leaks you have seen, when they happen, and whether they follow heavy rain, humid weather or the use of the bathroom or washing area above. Photographs of the surface, the drain, and the wall junction are useful, as is a note of how long the area has been in its present state. Tell us whether the space is used for foot traffic, furniture or a water tank, since that affects the coating chosen. Clear access to the balcony and the room below, and a plan of which spaces need work, will let the technician give you a precise, practical recommendation.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

When do you need floor & balcony waterproofing?

These are the signs most often linked to floor & balcony waterproofing:

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

The most common causes

• A common cause: a threshold without waterproofing.
• A common cause: incorrect falls.
• A common cause: a blocked drain.

Tools and methods, and when we use them

How the work is done, step by step

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.

Quick comparison: facts and costs in Jubail

Questions from Jubail

Common mistakes we see

• Tiling a balcony without waterproofing

What you receive

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