Floor & balcony waterproofing for apartments in Qatif

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

What is specific about Qatif for floor & balcony waterproofing

Team note on Qatif: 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 Qatif sits about 5 m above sea level (SRTM open elevation data).

Qatif is about 2.5 km from the sea coast (OpenStreetMap).

Floor and balcony leaks in apartments usually begin at the joints and edges rather than in the middle of the slab. Water finds its way in through hairline cracks where the floor meets a wall, around drain outlets, and at the threshold where a balcony tile meets the sliding door track. In an apartment block, a leak that starts on a balcony can travel down into the flat below, so the problem often shows up as a stain on someone else's ceiling. Early signs include tiles that sound hollow when tapped, paint bubbling at skirting level, and a damp smell after rain.

Qatif needs a slightly different approach from inland towns. The centre of Qatif sits about 5 m above sea level, which means rainwater and groundwater can drain slowly through the area, so standing water on balconies and at low points is worth checking after heavy rain. Qatif is also about 2.5 km from the sea coast, so salty air reaches exposed concrete and metal fixings over time. For this reason, the preparation work should include cleaning salt deposits and loose surface material before any coating is applied, and the choice of system should suit both moisture and salt exposure. The usual options for these surfaces include epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², and crack injection at SAR 40–120 per metre for active cracks along edges.

Before booking a visit, ask the provider to inspect the flat below as well as the balcony above, because the source of the leak is not always where the damp appears. Ask which system they propose, why it suits a coastal-influenced site, and how they will treat the cracks and drain outlets before coating. Request a written breakdown by square metre and by linear metre so you can compare the quote with the ranges above, and ask what preparation is included in that price. Finally, confirm who will be responsible for the work in the shared areas of the building, since balcony and slab repairs can affect neighbours.

In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.

When do you need floor & balcony waterproofing?

If you notice one of these signs in Qatif, 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

Where the problem usually comes from

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

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.

Qatif in facts and sources

Questions from Qatif

What we advise against

• Tiling a balcony without waterproofing

The written outputs

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