Roof waterproofing in Alqurayyat: cost & published offers

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

Why roof waterproofing differs in Alqurayyat

Team note on Alqurayyat: 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 Alqurayyat sits about 497 m above sea level (SRTM open elevation data).

Roof leaks in Alqurayyat usually start at the joints and upstands rather than across the open roof. Hairline cracks around parapets, drainage outlets and the edges of the slab let water track inside the structure, and the damage often shows first as staining on ceilings below. For this reason the first step on most roofs is a close inspection of the details, not simply a new layer of coating across the whole surface.

The location matters. The centre of Alqurayyat sits about 497 m above sea level (SRTM open elevation data), so the area is inland and higher than many coastal parts of the Kingdom. Roofs here are exposed to strong sun, large daily temperature swings and dust that settles on the surface and blocks drainage. Those conditions cause the membrane to expand and contract, which is why the choice of system should allow for movement and why the surface should be cleaned and checked for ponding before any product is applied. Liquid roof waterproofing is priced at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m² and XPS boards at SAR 12–30 per m², so the spread between options is wide and worth comparing on the condition of your roof rather than on price alone. Where the slab has active cracks, crack injection at SAR 40–120 per metre is often a better first step than a full recoat.

Before the visit, ask the provider which system they propose and why it suits your roof, and whether the price quoted covers surface preparation, crack repair and cleaning of drainage outlets. Ask for the price basis in square metres or metres of crack, so you can check the measurements against your own roof plan. Confirm how the work will be protected from dust and rain during curing, and ask how long the surface should stay clear before it is used. A clear written scope lets you compare offers fairly and avoids surprises once the work starts.

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

When do you need roof waterproofing?

If you notice one of these signs in Alqurayyat, it is a good moment to talk to the team:

• The old waterproofing is cracking
• Water pooling on the roof
• Stains on the top-floor ceiling after rain

The most common causes

• Cracks in the roof slab — we check this before anything else.
• A common cause: wrong falls towards the drains.
• A common cause: damaged waterproofing around tank and AC bases.

Tools we use in Alqurayyat

How the work is done, step by step

1. Survey: Falls, drains and the condition of the old layer are recorded.
2. Preparation: Cleaning and repairs before any new layer.
3. Primer: The base coat that the system needs.
4. Waterproofing layers and details: Corners, upstands and bases get their own detail.
5. Flood test: The roof is flooded and checked before it is covered.

Alqurayyat in facts and sources

Short answers for Alqurayyat

Common mistakes we see

• Ignoring the tank bases
• Covering the waterproofing before the flood test

What you get after the work

The written output: a quality record with photos and the flood-test result. The report is numbered and can be checked with its verification code.