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

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

Before we start: what we know about Riyadh

Team note on Riyadh: 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 Riyadh sits about 637 m above sea level (SRTM open elevation data).

Main roads in or near Riyadh: King Fahd Road, King Abdullah Road, King Abdullah.

For a company that owns or leases an office, warehouse or retail floor with an exposed balcony, the first concern is usually a slow stain that appears after the rains, or a tile edge that lifts near the drain. The owner's instinct is to repaint or re-tile, but the water is coming from below the surface, and the cosmetic fix only hides it. Facility managers in this position tend to want a single, clear decision: which area needs treatment, what it will cost per square metre, and how long the building will be disrupted.

Riyadh's location shapes that decision. The centre of the city sits about 637 m above sea level, which places it on a plateau rather than near the coast, so the surfaces are exposed to strong sun and sudden downpours rather than constant humidity. Heat expands and contracts concrete, which is why hairline cracks open over time. For a balcony or floor slab, that movement means the waterproofing has to be flexible as well as watertight. Liquid roof waterproofing typically falls in the range of SAR 10–25 per m², while bitumen membrane sits at SAR 15–35 per m², and epoxy coating at SAR 35–95 per m² is often chosen where a floor takes heavy traffic. Each system carries different maintenance expectations, so the choice should follow how the space is used.

A practical sequence keeps the work controlled. Start by mapping the affected area and marking every crack, since crack injection is priced separately at SAR 40–125 per metre and should be done before any surface coat. Next, confirm the substrate is sound and dry enough for the chosen product, because a coating applied over trapped moisture will blister. Then select the system: spray foam at SAR 20–45 per m² suits irregular surfaces, while XPS boards at SAR 15–30 per m² suit insulation under a protected finish. Finally, schedule the work around business hours, test the finished surface with a standing-water check, and record the areas treated so future inspections start from a clear baseline.

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

When do you need floor & balcony waterproofing?

If you notice one of these signs in Riyadh, 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

The most common causes

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

Tools we use in Riyadh

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 Riyadh

Common questions about floor & balcony waterproofing in Riyadh

Mistakes that cost more

• 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.