Bathroom waterproofing for villas in Al Aard, Riyadh

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

Why bathroom waterproofing differs in Al Aard

The centre of Al Aard is at 24.8935, 46.6060, about 21.2 km from the centre of Riyadh, with an approximate radius of 8 km. The approximate area shown on the map is centred here. Main roads in or near Al Aard: King Fahd Road, King Abdulaziz Road, Abu Bakr Al Siddiq Road.

The centre of Al Aard sits about 671 m above sea level (SRTM open elevation data). The nearest wadi channel is about 1 km from the centre of Al Aard (OpenStreetMap).

Picture a villa owner in Al Aard who has noticed a damp patch spreading across the bathroom wall behind the shower. The tiles look fine, but the paint is bubbling and there is a faint smell in the corridor outside. Like many owners of larger family homes in this part of Riyadh, they assumed the problem was ordinary wear, only to discover that water had been finding its way through hairline gaps for some time. The question they face is not just how to stop the leak, but how to do the work once and do it properly.

Al Aard sits at roughly 24.8935, 46.6060, about 21.2 km from the centre of Riyadh, with an approximate radius of 8 km. The centre of the area is about 671 m above sea level, and the nearest wadi channel is about 1 km from the centre. For a homeowner, this means the site is not a flat plain where water simply drains away. Rainfall can arrive in short, heavy bursts, and a nearby wadi channel is a reminder that water moves across the ground quickly during those events. Bathrooms, which are often placed on the outer walls of villas, are exposed to this pressure. Good waterproofing here is a matter of protecting walls and floors from moisture that can travel from outside and from within the building.

Practical work usually follows a clear order. First, inspect the bathroom closely, marking damp areas, cracks, and any gaps around the shower tray and drain. Second, decide which materials suit each area; bathroom waterproofing is typically priced at SAR 15–40 per m², while epoxy coating runs SAR 35–95 per m² and spray foam SAR 20–45 per m², so the choice depends on the surface and the finish you want. Third, repair any cracks before coating, since crack injection costs SAR 40–125 per metre and should be finished before the membrane goes on. Fourth, apply the chosen waterproofing in full, including upturns on walls, and allow the recommended curing time before tiling. Finally, test the finished area with water before refitting fixtures, so any remaining weakness is found while the work is still easy to correct.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

Signs that call for bathroom waterproofing

These are the signs most often linked to bathroom waterproofing:

• Worn grout
• A stain under the bathroom on the floor below
• Damp around the shower

Causes we see in the field

• A common cause: the area around the floor drain.
• A common cause: corners without waterproofing tape.
• A common cause: a damaged floor layer.

Tools and methods, and when we use them

From the first visit to the report

1. Finding the source: A supply-pipe leak is ruled out first.
2. Preparation: The floor is opened and cleaned where needed.
3. Corners and details: Tape and detailing at corners, drains and pipe entries.
4. Flood test: The floor is tested before tiling.

Al Aard in facts and sources

Questions from Al Aard

What we advise against

• Waterproofing the floor while the supply pipe still leaks

What you receive

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