Floor & balcony waterproofing for villas in Alrass

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

Floor & balcony waterproofing in Alrass: the local context

The centre of Alrass sits about 695 m above sea level (SRTM open elevation data). Main roads in or near Alrass: King Abdulaziz Road, King Fahd Road, King Salman Road.

Team note on Alrass: 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..

Before any material is chosen for a villa floor or balcony in Alrass, the technician first checks the ground and the exposure. The centre of Alrass sits about 695 m above sea level (SRTM open elevation data), so the site is inland and well above the coast, which shapes how water moves across a slab and how sun and temperature swing across the day. The first checks are therefore the slope of the floor towards its drains, the condition of existing screeds and tiles, and any hairline cracks that could let water reach the structure. Where a crack is found, crack injection is priced at SAR 40–120 per metre, and that figure helps the homeowner understand the scale of the work before the visit is complete.

Several matters are left to the site visit itself. The exact choice between liquid roof waterproofing at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², or XPS boards at SAR 12–30 per m² depends on whether the surface is a roof terrace, an open balcony or a covered floor. Likewise, whether a bathroom area needs bathroom waterproofing at SAR 15–40 per m² or an epoxy coating at SAR 35–90 per m² is decided on the spot, as is whether spray foam at SAR 20–45 per m² suits the substrate. Basement waterproofing, priced at SAR 50–150 per m², and tank internal coating, at SAR 25–60 per m², are assessed only when those areas are part of the job. The technician should also note existing drainage outlets, upstands at door thresholds and any tiling that must be lifted.

To help the technician, the homeowner should prepare a clear note of the areas to be treated, their approximate dimensions in square metres and any linear lengths of cracks, so the scope can be matched to the rates above. It helps to mention whether the balcony is exposed to direct sun, whether the floor has been waterproofed before, and when leaks were last noticed and where. Access to the roof or balcony, the position of water tanks and any electrical fittings near the work should also be shown. Clear answers to these points let the technician move straight to the right method and give an accurate estimate.

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 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

The most common causes

• 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.

How we choose the tool in Alrass

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 Alrass

Questions from Alrass

Common mistakes we see

• Tiling a balcony without waterproofing

What you get after the work

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