Bathroom waterproofing for apartments in Aljumum

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

What is specific about Aljumum for bathroom waterproofing

Team note on Aljumum: 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.. The centre of Aljumum sits about 200 m above sea level (SRTM open elevation data).

Bathroom leaks in apartments most often start where the floor meets the wall and around the shower tray, where small gaps let water seep into the slab and the flat below. Because these leaks hide behind tiles and sanitary fittings, damage can spread for months before anyone notices damp patches or peeling paint. Our waterproofing work for bathrooms in Aljumum is priced at SAR 15–40 per m², and the first step is always to find where the water is getting through rather than simply sealing the visible surface.

Aljumum sits about 200 m above sea level, which shapes how we approach each job. At this elevation the local climate and ground conditions differ from low coastal sites, so we check the existing screed and tile bond before choosing a material. Where the substrate is sound, a liquid membrane applied in several coats along the floor and up the walls gives a continuous seal without disturbing the rest of the flat. Where cracks are present, we may recommend crack injection, which is charged at SAR 40–120 per metre. For shower areas that need extra protection against constant wetting, epoxy coating at SAR 35–90 per m² can be a practical option, and spray foam at SAR 20–45 per m² suits some awkward shapes. Each option is matched to the actual condition of the bathroom rather than offered as a single standard package.

Before the visit, it helps to have a few details ready. Tell us which floor your apartment is on, whether the leak is coming from your bathroom or from the flat above, and how long you have seen the damp or staining. Note any cracks in the tiles or grout, and mention if you have had previous repairs, as older sealants can complicate new work. Let us know whether the building management has already been informed, since shared walls and pipes may need their agreement. With this information, we can plan a site visit that identifies the source, gives you a clear quote by the square metre, and explains which treatment fits your bathroom and your budget.

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

When do you need bathroom waterproofing?

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

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

Causes we see in the field

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

Tools we use in Aljumum

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.

Facts and costs — Aljumum

Short answers for Aljumum

Common mistakes we see

• 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.