Bathroom waterproofing for apartments in Allith

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

Before we start: what we know about Allith

Main roads in or near Allith: Al Laith Road, Amr Bin Al Aas Street. The centre of Allith sits about 5 m above sea level (SRTM open elevation data).

Allith is about 1.2 km from the sea coast (OpenStreetMap).

Is bathroom waterproofing in an Allith apartment worth doing, and how do you know whether your bathroom needs it? Allith sits about 5 m above sea level, and the sea coast is roughly 1.2 km away, so owners here deal with coastal air and humidity that can work into tiles, grout and the joints around showers. Bathroom waterproofing for apartments is priced at SAR 15–40 per m², and that range is what most owners should expect when they compare quotes. Because the area is close to the coast, a bathroom that looks fine on the surface may still be taking in moisture underneath, which is why a proper check matters before any work starts.

The inspection starts by looking at the floor and the walls where they meet the shower area and the bath, since these joints are the most likely places for water to slip through. The inspector then checks for cracks, and where a crack runs through the substrate, crack injection is priced at SAR 40–120 per metre. The surfaces are measured so the area to be treated can be confirmed, and the method is matched to the condition found. Common options quoted for this kind of work include epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², and bitumen membrane at SAR 15–35 per m², so the chosen method depends on what the inspection shows. The inspector will explain each step as it is done.

Before the visit, clear the bathroom floor and the area around the shower and bath so the inspector can reach the joints and walls easily. Note any past leaks, damp patches, stains on the ceiling below, or areas where tiles have loosened, because these details help the inspector focus on the right places. Let the inspector know whether the flat is on a lower floor, since moisture can behave differently there. Having the building details and any earlier repair records to hand will also make the visit quicker and the quote easier to compare.

In apartment buildings, the floor below is often where a leak shows first.

Signs that call for bathroom waterproofing

If you notice one of these signs in Allith, it is a good moment to talk to the team:

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

The most common causes

• The area around the floor drain — we check this before anything else.
• Corners without waterproofing tape.
• A damaged floor layer — we check this before anything else.

Tools we use in Allith

How the work is done, step by step

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.

Quick comparison: facts and costs in Allith

Common questions about bathroom waterproofing in Allith

Mistakes that cost more

• Waterproofing the floor while the supply pipe still leaks

The written outputs

You receive: the flood-test result and photos of each stage, in a technical report with a verification code.