Floor & balcony waterproofing in Unaizah: cost & published offers

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

Floor & balcony waterproofing in Unaizah: the local context

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

How much does it cost to waterproof a floor or balcony in Unaizah, and what do the published offers cover? The answer depends on the method and the area, and the published rates give a clear starting range. Spray foam runs from SAR 20–45 per m², epoxy coating from SAR 35–85 per m², and bitumen membrane from SAR 15–35 per m². Liquid roof waterproofing, which is often used on exposed balconies and terraces, falls between SAR 10–25 per m². Crack injection, useful where a hairline split is letting water through, is priced per metre at SAR 40–115 per m. Unaizah itself sits at about 667 m above sea level, so it is worth noting that the offers below are for this local area and the figures are not general national averages.

A site visit starts with a walk across the floor or balcony to find ponding, staining, lifted tiles, and hairline cracks. The surveyor checks the edges where the surface meets walls and drains, since water most often enters there. Where cracks are present, they are mapped and measured in metres so that crack injection can be quoted separately from the main coating. The surface is then tested for moisture and for loose or powdery material that would stop a new layer from bonding. Finally, the surveyor notes the existing finish, whether it is tile, screed, or bare concrete, because this decides which product will adhere properly and how much preparation is needed before the first coat goes on.

Before the visit, gather the basic information that makes the quote accurate. Measure the floor or balcony length and width so the area in square metres is known, and count any separate sections such as a narrow balcony strip or a bathroom floor. Note where water has been seen, and when, especially after rain. Take clear photos of cracks, stains, and drainage outlets, and mention any earlier repairs or coatings. Clear furniture, plants, and stored items from the area so the surveyor can walk the full surface. Having these details ready lets the site visit focus on the inspection and makes it easier to compare the published rates against the work proposed for your specific space.

Prices shown on this page come from our own published price list for the city; the final price is set after inspection.

Signs worth paying attention to

These are the signs most often linked to floor & balcony waterproofing:

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

Tools we use in Unaizah

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.

Quick comparison: facts and costs in Unaizah

Short answers for Unaizah

Common mistakes we see

• Tiling a balcony without waterproofing

What you get after the work

The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.