Floor & balcony waterproofing for villas in Bishah

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

Floor & balcony waterproofing in Bishah: the local context

The centre of Bishah sits about 1169 m above sea level (SRTM open elevation data). Main roads in or near Bishah: King Saud Road, Riyadh Street.

Before any material is chosen for a villa floor or balcony in Bishah, the first thing a technician checks is the altitude. The centre of Bishah sits about 1169 m above sea level (SRTM open elevation data), which means the site is in highland terrain where temperature swings between day and night can be pronounced. That matters for waterproofing because repeated expansion and contraction can open hairline cracks in slabs and screed. So the first checks are the condition of the existing surface, any visible cracks, the slope towards drains, and whether the balcony edge and threshold show signs of water tracking inward.

Some decisions cannot be made from a description alone and are left to the site visit. The technician needs to see how the slab was finished, whether there is an existing membrane, how the drainage outlets are set, and where water is actually pooling after rain. Crack injection is priced per metre, with SAR 40–120 per m, so the length and depth of any cracks must be measured on site before a figure is discussed. Likewise, balcony surfaces that are fully exposed differ from covered ones, and the choice between liquid roof waterproofing at SAR 8–25 per m² and a bitumen membrane at SAR 15–35 per m² depends on how the surface behaves under foot traffic and sun. Where a bathroom sits above a living area, bathroom waterproofing at SAR 15–40 per m² is considered separately from the main floor.

To help the technician, the homeowner should prepare a clear picture of the area. Note the approximate floor or balcony dimensions, any places where water has stained ceilings below, and whether the balcony is used for seating, washing or storage. Mention any previous repairs and the materials used, and say whether the slab sits above a garage or an open space. If a tank or spray foam insulation is already in place nearby, record that too. Keep access to the roof hatch or stairway clear, and have someone available who knows where the drainage points are. Clear information at the start means the visit can focus on measurement rather than guesswork.

Villas often have several lines and tanks; we test them one at a time so the cause is clear.

Signs worth paying attention to

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

Where the problem usually comes from

• A blocked drain.
• A threshold without waterproofing.
• Incorrect falls.

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 Bishah

Common questions about floor & balcony waterproofing in Bishah

Common mistakes we see

• Tiling a balcony without waterproofing

The written outputs

You receive: the flood result and photos of the details, in a technical report with a verification code.