Roof waterproofing in Aldiriyah: cost & published offers

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

What is specific about Aldiriyah for roof waterproofing

The centre of Aldiriyah sits about 655 m above sea level (SRTM open elevation data). Team note on Aldiriyah: 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..

Roof leaks in Aldiriyah most often start where the membrane has worn thin or cracked at the upstands, drains and parapet joins, letting rainwater seep into the top floor and then spread into ceilings and walls. On a flat roof, water that sits in shallow pools for days does more damage than a single heavy shower, so the first job is usually to find and seal the weak points rather than to recoat the whole area. Liquid roof waterproofing is priced at SAR 8–25 per m², while bitumen membrane runs SAR 15–35 per m², so the choice between them affects the budget as much as the expected lifespan.

Aldiriyah sits at about 655 m above sea level, which means the area can see strong sun and sharp temperature swings between day and night. That kind of daily expansion and contraction stresses the surface, so a good approach accounts for how the coating will move and age under heat rather than treating every roof the same. Crack injection, priced at SAR 40–120 per metre, is often the right first step where the structure has split, and spray foam at SAR 20–45 per m² can suit irregular surfaces where a flat sheet would not sit well. Where the roof also drains water into a storage tank or a rooftop basin, the tank internal coating at SAR 25–60 per m² may be worth discussing in the same visit.

Before the visit, ask the provider to explain exactly which system they propose and why it suits your roof, not just the price per square metre. Ask whether the quote covers surface preparation, drain and upstand work, and any crack repair, since these items can change the total significantly. Confirm how the cost is measured, whether the area is the full roof or only the section affected, and whether the figures shown are a starting range or a fixed price. It also helps to ask what the warranty covers and how long it runs, and to request that the inspection note the existing damage in writing before any work begins.

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

Signs that call for roof waterproofing

These are the signs most often linked to roof waterproofing:

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

Where the problem usually comes from

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

How we choose the tool in Aldiriyah

From the first visit to the report

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.

Facts and costs — Aldiriyah

Questions from Aldiriyah

Mistakes that cost more

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

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.