Floor & balcony waterproofing for offices & commercial complexes in Alahsa

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

Before we start: what we know about Alahsa

The centre of Alahsa sits about 152 m above sea level (SRTM open elevation data). Team note on Alahsa: 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 Alahsa sits about 152 m above sea level (SRTM open elevation data), a fact that shapes how we approach floor and balcony work for offices and commercial complexes. The city is a mostly flat, low-lying oasis area, so surface water does not run off quickly and can linger on terraces and walkways after heavy rain. For a commercial building, that means water is more likely to pool against floor edges and balcony thresholds, and the waterproofing system has to hold a continuous seal at every junction rather than just covering the main surface.

Each of these conditions has a practical effect on the service. Because standing water is a real risk, our crews check falls and drainage outlets before any membrane goes down, and we pay close attention to where balcony slabs meet walls and parapets. Our office and complex clients often ask about the cost of protecting specific zones, so we price the work by area and by element: liquid roof waterproofing at SAR 10–25 per m², bitumen membrane at SAR 15–35 per m², and epoxy coating at SAR 35–90 per m² for high-traffic floors that need a hard-wearing finish. Where a balcony slab is cracked, crack injection at SAR 40–120 per m is often the first step, since a sealed crack protects everything laid over it. Spray foam at SAR 20–45 per m² and XPS boards at SAR 10–30 per m² can be used where insulation and moisture control must be handled together.

Owners of commercial property tend to make the same avoidable errors, and we work to prevent them. The most common is choosing the lowest-cost surface without checking the substrate, which leads to early peeling and repeat repairs. Another is treating balcony edges and drainage as an afterthought, so water finds the one unsealed gap. Many owners also delay crack repairs until leaks reach tenants' offices, when the same work would have cost far less early on. Finally, some skip a clear inspection record, which makes it hard to track what was done and when. Planning the scope around these points keeps the building dry, the tenants undisturbed and the total outlay predictable.

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 Alahsa, it is a good moment to talk to the team:

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

Causes we see in the field

• A blocked drain — we check this before anything else.
• A common cause: a threshold without waterproofing.
• Incorrect falls — we check this before anything else.

How we choose the tool in Alahsa

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.

Alahsa in facts and sources

Common questions about floor & balcony waterproofing in Alahsa

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.