Bitumen membrane in Alqunfudhah: cost & published offers

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

What is specific about Alqunfudhah for bitumen membrane

Team note on Alqunfudhah: 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 Alqunfudhah sits about 7 m above sea level (SRTM open elevation data).

Alqunfudhah is about 0.4 km from the sea coast (OpenStreetMap).

Alqunfudhah sits about 7 m above sea level, and its centre lies roughly 0.4 km from the coast. That combination means a bitumen membrane job here is judged first on drainage and salt exposure rather than on flood risk, because the ground is low enough that water can linger after rain while the sea air keeps surfaces damp and salty. Before any price is discussed, the technician looks at how water leaves the roof or slab, whether outlets and falls are working, and whether the substrate is sound enough to take a membrane at all. Bitumen membrane is quoted at SAR 15–35 per m² in the published offers for this page, so the first question is always how much real area needs covering, not what the rate looks like on paper.

Several things are left to the site visit, because they cannot be judged from a distance. The technician checks the condition of the existing surface, the extent of any cracking or blistering, the state of parapets and upstand edges, and whether an old coating must be removed before new work begins. Any separate crack repair is priced on its own, since crack injection is listed at SAR 40–120 per metre, and it is only added once the length is measured on site. Access, the shape of the roof, and the height of the building also affect the final scope and are confirmed in person rather than assumed.

For the technician, the most useful information is a clear record of the area in square metres, the location of drains and outlets, and any history of leaks or ponding. Note whether the roof is a plain slab or has insulation boards, since XPS boards are quoted separately at SAR 12–30 per m² and change the sequence of work. If the building has a tank or a basement beneath the roof area, record that too, because tank internal coating (SAR 25–60 per m²) and basement waterproofing (SAR 50–150 per m²) are different jobs with different rates. Giving the technician these details at the first contact keeps the visit focused and the scope accurate.

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

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

• A flat concrete roof that needs waterproofing
• Old rolls that are cracking

Causes we see in the field

• No protection layer.
• A common cause: seams that were not welded properly.

Tools we use in Alqunfudhah

How the work is done, step by step

1. Preparation: Cleaning, priming and repairs.
2. Torch welding: Overlaps are welded and checked.
3. Details: Upstands, drains and bases.
4. Protection and flood test: Protection is laid after a successful flood test.

Facts and costs — Alqunfudhah

Short answers for Alqunfudhah

Common mistakes we see

• Leaving the membrane exposed without protection

What you get after the work

You receive: photos of the welds and the flood-test result, in a technical report with a verification code.