Floor & balcony waterproofing for apartments in Jazan

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

What is specific about Jazan for floor & balcony waterproofing

Team note on Jazan: 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 Jazan sits about 7 m above sea level (SRTM open elevation data).

Jazan is about 1.9 km from the sea coast (OpenStreetMap).

Before any material is chosen for a floor or balcony in Jazan, the first thing to check is the location itself. The centre of Jazan sits about 7 m above sea level (SRTM open elevation data), and the city is about 1.9 km from the sea coast (OpenStreetMap). That combination means a balcony or ground-floor slab is close enough to the coast for salt-laden, humid air to matter, while the modest height above sea level means drainage paths and water pooling deserve attention on each site. A technician should therefore look first at how water leaves the balcony, whether the outlets are blocked, and whether the slope of the existing screed carries rain toward the drain or back toward the wall.

Several things can only be judged on the site visit and are not settled by any general rule. The technician needs to see the actual condition of the concrete and the tiles, to find any hairline cracks, to test whether the substrate is sound, and to confirm which surfaces are exposed to rain and which are sheltered. Whether a crack needs injecting, whether an old membrane has lifted, and whether a balcony should receive a liquid roof-style system or a bitumen membrane all depend on what is found there. Prices in the price guide are indicative ranges only: basement waterproofing runs SAR 50–150 per m², bathroom waterproofing SAR 15–40 per m², epoxy coating SAR 35–90 per m², spray foam SAR 20–45 per m², crack injection SAR 40–120 per metre, liquid roof waterproofing SAR 8–25 per m², bitumen membrane SAR 15–35 per m², and XPS boards SAR 12–30 per m². The final figure follows the measured area and the inspection.

To help the technician prepare, the resident should have the floor plan or a rough sketch of the balcony to hand, with dimensions noted, and should point out any spots where water has previously stained the ceiling below. Tell the visitor when leaks appear, whether after heavy rain or during normal use, and whether a tank or bathroom sits above the affected area, since tank internal coating (SAR 25–60 per m²) is a separate job from balcony work. Clear access to the balcony and to the flat below, and a note of any previous repairs, will let the technician measure accurately and recommend the right system on the first visit.

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

Signs worth paying attention to

The following signs are worth checking before they grow:

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

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.

Jazan in facts and sources

Short answers for Jazan

Mistakes that cost more

• Tiling a balcony without waterproofing

What you receive

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