Floor & balcony waterproofing for villas in Jubail

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

Why floor & balcony waterproofing differs in Jubail

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data). Jubail is about 0.9 km from the sea coast (OpenStreetMap).

Team note on Jubail: 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..

Is my villa balcony in Jubail really at risk from the sea air, and how do I know whether the floor needs attention? Jubail's centre sits about 4 m above sea level (SRTM open elevation data), and the town is about 0.9 km from the sea coast (OpenStreetMap). That closeness means salty, humid air reaches many villa roofs and balconies, so moisture can work into the slabs over time. Owners often notice this as damp patches, lifting tiles or hairline cracks near edges. Because the costs vary by method, it helps to know which surface you have before choosing a system: liquid roof waterproofing runs about SAR 8–25 per m², bitumen membrane about SAR 15–35 per m², and spray foam about SAR 20–45 per m².

A visit to a villa usually starts with a walk over the balcony and floor to look for cracks, ponding water, blistered finishes and signs of staining on the ceiling below. The inspector measures the area in square metres and marks any crack, because crack injection is priced per metre, typically SAR 40–120 per m. Where a basement or bathroom is involved, the surfaces are checked separately, since basement waterproofing is SAR 50–150 per m² and bathroom waterproofing is SAR 15–40 per m². Any water tank on the roof is also examined, with tank internal coating priced at SAR 25–60 per m². The result is a written list of areas, the method suited to each, and a rate per square metre so you can compare the options clearly.

Before the visit, gather a few simple details to save time. Note which rooms and surfaces show damage, take dated photos of any stains or cracks, and mention when you first saw them. Clear furniture and plants from the balcony and make sure the inspector can reach the roof access and the basement door. If you have past plans or details of the slab, keep them ready. Finally, decide whether you want an epoxy coating, which is SAR 35–90 per m², or a lower-cost option for a simple balcony, so the inspection can focus on the choices that suit your home in Jubail.

Villas often have several lines and tanks; we test them one at a time so the cause is clear.

When do you need 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 common cause: a threshold without waterproofing.
• Incorrect falls.
• A common cause: a blocked drain.

How we choose the tool in Jubail

How the work is done, step by step

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.

Jubail in facts and sources

Questions from Jubail

What we advise against

• Tiling a balcony without waterproofing

What you receive

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