Floor & balcony waterproofing for villas in Alzulfi

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

What is specific about Alzulfi for floor & balcony waterproofing

Team note on Alzulfi: 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 Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road.

The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data).

Floor and balcony leaks in villas usually start at the joins: where the balcony slab meets the wall, around drainage outlets, and along cracks that open as the concrete moves with temperature swings. Water finds these weak points slowly, so staining or a soft patch on a ceiling below may show up long after the damage has begun. Catching it early keeps the repair to a surface job rather than a structural one.

Alzulfi sits about 615 m above sea level, and that height shapes the approach. Higher ground in the area means open exposure to wind and sun, so the membrane and coating on a balcony or roof face strong daily heat and UV. For that reason, a surface system needs to tolerate expansion and contraction as well as keep water out. Common options for this work include liquid roof waterproofing at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², and spray foam at SAR 20–45 per m². Crack injection, priced at SAR 40–120 per metre, is often used first to seal the joins before the wider area is treated. For a balcony that is walked on, epoxy coating at SAR 35–90 per m² can give a harder finish, while a basement or bathroom needs its own specification.

Before the visit, ask the provider which system they propose for your balcony or floor and why it suits an exposed, high-altitude site. Ask them to point to the cracks and joins they plan to inject, and to explain how they will check drainage outlets. Request a written breakdown by area and by item so you can compare the per-m² and per-metre rates above with the quote you receive. Finally, ask how the surface will be protected once it is finished, and what you should avoid on it in the first days after the work.

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?

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

• Damp under the light well
• A wrong fall towards the door threshold
• Water passing from the balcony to the floor below

Where the problem usually comes from

• A blocked drain.
• A common cause: incorrect falls.
• A threshold without waterproofing.

Tools and methods, and when we use them

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 Alzulfi

Questions from Alzulfi

Mistakes that cost more

• Tiling a balcony without waterproofing

What you get after the work

You receive: the flood result and photos of the details, in a technical report with a verification code.