Floor & balcony waterproofing for offices & commercial complexes in Yanbu

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

Floor & balcony waterproofing in Yanbu: the local context

The centre of Yanbu sits about 6 m above sea level (SRTM open elevation data). Yanbu is about 1.2 km from the sea coast (OpenStreetMap).

Team note on Yanbu: 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.. Main roads in or near Yanbu: King Abdulaziz Road, Umluj Road, Al Hanan Street.

Floor and balcony waterproofing in offices and commercial complexes usually fails in the same place: the joints, cracks and edges where a floor meets a wall, a drain or a balcony threshold. Water finds these weak points first, and in a busy building the damage shows up as stained ceilings in the rooms below, lifting tiles and soft screeds that interrupt tenants' work. Because the failure is so often at the edges rather than across the open surface, a good assessment starts by walking every joint and drain outlet before deciding on a system.

Yanbu's location changes how that assessment should be done. The centre of the city sits about 6 m above sea level, and the coast is about 1.2 km away, so buildings are close enough to the sea that salt-laden air and groundwater conditions matter when choosing materials and checking substrates. Low-lying areas and ground-floor slabs deserve closer attention than upper floors. Where cracks are present, crack injection is priced at SAR 40–120 per metre, which makes it sensible to map and measure the cracks first so the scope is clear. For larger open areas, the spread of options is wide: liquid roof waterproofing runs at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², and epoxy coating at SAR 35–90 per m², so the right choice depends on traffic, slope and how the surface must look afterwards.

Before the visit, ask the provider to explain how they will inspect joints, drains and existing cracks, and whether they will test the substrate for moisture before applying anything. Ask which systems they recommend for your floors and balconies and why, and request a written breakdown by square metre and by metre of crack treatment so you can compare the figures against the ranges above. Confirm how long the works will take in your occupied building, what protection they will use for tenants and equipment, and who will be responsible if a new leak appears at the same joint later.

For offices and commercial complexes, work is scheduled to avoid disrupting staff and visitors.

Signs worth paying attention to

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

• 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.
• A blocked drain — we check this before anything else.

Tools we use in Yanbu

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.

Yanbu in facts and sources

Common questions about floor & balcony waterproofing in Yanbu

Mistakes that cost more

• 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.