Floor & balcony waterproofing in Aldarb: before summer & rain season

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

Before we start: what we know about Aldarb

The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Aldarb is about 18.7 km from the sea coast (OpenStreetMap).

Floor and balcony leaks in Aldarb most often start as small cracks at the junction between the floor slab and the balcony edge, or where the tiles meet the drain. Water seeps in slowly, stains the ceiling below, and by the time it is visible the damage has usually spread under the surface. Balconies are the worst affected because they sit fully exposed to the weather and collect standing water around the drain outlet.

Aldarb sits about 79 m above sea level and about 18.7 km from the sea coast, so the local approach differs from what you might expect on the coast. The centre of Aldarb is inland and relatively elevated, which means rainfall drains quickly off surfaces but can still pool where falls are poor. Because the site is well away from the coast, the main concern is the heat-and-rain cycle rather than salt air. Before summer, surfaces expand under strong sun; before the rainy season, cracks need to be sealed so water does not find its way through. Liquid roof waterproofing, bitumen membrane and spray foam are typically used on exposed balcony areas, while crack injection, priced per metre, suits isolated cracks at the slab junction.

Before the visit, ask the provider to confirm which system they recommend for your specific floor or balcony and why. Ask for the surface area and the length of any cracks so the quote can be checked against the price ranges that apply, such as liquid roof waterproofing at SAR 8–25 per m² or crack injection at SAR 40–120 per m. Ask whether the drain and the edge detail will be treated, not just the open floor, and how long the work will take. Finally, ask what preparation you need to do, such as clearing the balcony and keeping it dry, so the job can be completed before the next rain.

Checks before summer and before the rain season catch problems while they are still small.

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

Where the problem usually comes from

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

Tools and methods, and when we use them

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.

Quick comparison: facts and costs in Aldarb

Questions from Aldarb

Common mistakes we see

• Tiling a balcony without waterproofing

The written outputs

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