Floor & balcony waterproofing for duplexes in Ahad Almasarihah

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

Before we start: what we know about Ahad Almasarihah

Team note on Ahad Almasarihah: 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 Ahad Almasarihah sits about 667 m above sea level (SRTM open elevation data).

Will a leaking balcony or upper floor in a duplex in Ahad Almasarihah be cheaper to fix now than later? In most cases, yes, because the cost of repair depends on how much area is affected and which material the job needs. The centre of Ahad Almasarihah sits about 667 m above sea level (SRTM open elevation data), and that is the context for the work we describe here. Our rates for floor and balcony waterproofing are set per square metre, so you can estimate a job from the area you have. Epoxy coating costs SAR 35–90 per m², spray foam costs SAR 20–45 per m², and bitumen membrane costs SAR 15–35 per m². Crack injection is priced per metre at SAR 40–120 per m, which suits a single hairline crack along a balcony edge. Liquid roof waterproofing, if your duplex has a flat roof terrace above the top floor, runs SAR 8–25 per m².

Before any work is quoted, the inspection follows a set sequence. The technician first walks the floor and balcony surfaces to look for staining, hollow-sounding tiles, and cracks, and marks each one. Next, the area is measured so the quote can be built from the per-square-metre rates above. The technician then checks the junctions where the balcony meets the wall and the drainage points, because water often enters at these edges rather than through the open surface. Finally, the findings are explained to you with a recommended material for each zone, so you can compare options before choosing.

To make the visit productive, prepare a few things in advance. Clear the balcony and floor of furniture, plants and loose items so the surfaces can be checked properly. Note when you first saw damage, whether it appears after rain, and which room sits directly below the affected area. If you have earlier paperwork for the building or any previous repair, have it ready. Make sure someone who knows the property can give access to the duplex and to the roof or upper level if needed. Having this information on hand lets the inspection move quickly and gives you a clearer, more accurate quote.

In a duplex, the two floors often share lines, so tests are done floor by floor.

Signs that call for floor & balcony waterproofing

If you notice one of these signs in Ahad Almasarihah, 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

The most common causes

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

Tools and methods, and when we use them

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.

Facts and costs — Ahad Almasarihah

Questions from Ahad Almasarihah

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.