Floor & balcony waterproofing for residential buildings in Dhahran

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

What is specific about Dhahran for floor & balcony waterproofing

The centre of Dhahran sits about 16 m above sea level (SRTM open elevation data). Dhahran is about 5.9 km from the sea coast (OpenStreetMap).

Team note on Dhahran: 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..

Imagine a homeowner in Dhahran who owns a three-storey residential building with a flat concrete roof and several balconies that face the afternoon sun. Over the past year she has noticed a damp patch on the ceiling of the top floor, and a hairline crack along one balcony edge has started to darken after each rain shower. She wants the problem fixed properly, but she is not sure whether the roof, the balconies or the bathroom is the real source, and she does not want to pay for work that will not last.

The local facts shape how she should think about this. The centre of Dhahran sits about 16 m above sea level, and the city is about 5.9 km from the sea coast. That means the ground is not especially low-lying, so water tends to run off and drain rather than pool around the building, which is useful for a flat roof but also means that every crack and low spot on the roof and balcony surfaces becomes a point where water collects and enters. Being a few kilometres inland, the building is still exposed to the dry, salty air that comes off the Gulf, so exposed concrete and metal fixings should be checked as part of any inspection. Prices for each type of work also vary widely, from roughly SAR 8–25 per m² for liquid roof waterproofing to SAR 50–150 per m² for basement work, so the owner should match the method to the exact area that is failing.

Her practical approach would run in this order. First, she should walk the roof and each balcony after rain and mark every crack, ponding area and drain outlet, then check the bathroom walls above the damp patch. Second, she should treat the cracks first, asking for crack injection quotes per metre, since that is often where leaks start. Third, she should decide the main surface system: liquid roof waterproofing or a bitumen membrane for the roof, and epoxy coating or spray foam where a balcony needs a tougher finish. Fourth, she should confirm that bathroom waterproofing is included if the leak traces back there. Finally, she should compare at least two written quotes that list the area in m² and the cost per unit, and schedule the work in dry weather so the coatings can cure properly.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

When do you need floor & balcony waterproofing?

The following signs are worth checking before they grow:

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

Causes we see in the field

• A threshold without waterproofing — we check this before anything else.
• Incorrect falls — we check this before anything else.
• A blocked drain — we check this before anything else.

Tools we use in Dhahran

The steps in order

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 Dhahran

Short answers for Dhahran

What we advise against

• Tiling a balcony without waterproofing

What you get after the work

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