Floor & balcony waterproofing in Jazan: for companies (annual contract)

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

Before we start: what we know about Jazan

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).

Floor and balcony waterproofing in Jazan starts with 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). For a company checking its floors and balconies, these two facts mean that the first things to look at are how water moves across the surface and where it can collect. Because the ground is low and close to the coast, a technician should check drainage outlets, floor falls and the edges where tiles meet walls before anything else. Any standing water, staining at the underside of a balcony slab, or hollow-sounding tiles should be noted at the start of the visit.

Other points are left to the site visit, because they depend on what is actually in front of the technician. These include the age and condition of the existing finish, whether there are visible cracks and their length, the type of substrate, how the balcony is used, and whether the floor sits above occupied space, a basement or a plant area. The technician also needs to see the access available, the state of any previous repairs and the surface moisture before recommending a system. Prices for a range of methods exist across the site, including epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m² and liquid roof waterproofing at SAR 8–25 per m². Which of these fits a given floor can only be decided on site, so the visit should not be skipped in favour of a quoted figure.

To help the technician prepare, the client should have the floor area measured in square metres, the length of any cracks in metres, and a note of whether the area is a basement, a bathroom, a roof or an open balcony. Information about the building's age, any past leaks and the current use of the space shortens the visit. Crack injection is priced at SAR 40–120 per metre, so an accurate crack length helps the technician estimate the work. Access arrangements, such as tenant schedules or a key holder for the site, should also be confirmed in advance so the inspection can start promptly and cover every affected floor and balcony.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

Signs that call for floor & balcony waterproofing

If you notice one of these signs in Jazan, 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.

Tools we use in Jazan

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.

Quick comparison: facts and costs in Jazan

Short answers for Jazan

What we advise against

• 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.