Basement & foundation waterproofing in Aldarb: cost & published offers

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

Basement & foundation waterproofing in Aldarb: the local context

The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Aldarb is about 18.7 km from the sea coast (OpenStreetMap).

Is basement waterproofing in Aldarb worth paying for, and what should it cost? Aldarb's centre sits about 79 m above sea level (SRTM open elevation data), and the town is about 18.7 km from the sea coast (OpenStreetMap). Those are the two location facts that matter most here, and they shape how we approach a wet basement. Pricing is set per square metre or per metre of crack, so the final figure depends on the area and the method chosen. For basement waterproofing, the published range is SAR 50–150 per m². Other methods cost less per square metre, such as bitumen membrane at SAR 15–35 per m² and XPS boards at SAR 12–30 per m², while epoxy coating runs SAR 35–90 per m² and spray foam SAR 20–45 per m².

Before any work is quoted, the inspection walks through the space with the owner present. The technician checks the walls and floor for damp patches, efflorescence and visible cracks, and marks each crack so it can be measured in metres. Crack injection is priced at SAR 40–120 per metre, so an accurate length matters. The inspector also notes where water enters, whether it comes through the floor joint, the wall base or a rising damp line, and measures the total wall and floor area that needs treatment. Where a basement sits close to a water tank or a bathroom above, those surfaces are checked too, since tank internal coating is priced at SAR 25–60 per m² and bathroom waterproofing at SAR 15–40 per m². The result is a written breakdown by method and area, not a single guess.

To make the visit efficient, have a few things ready. Gather any previous repair invoices, photos of the leak taken after rain, and a simple floor plan with room sizes if you have one. Clear the basement of stored items along the walls so the surfaces can be reached, and switch on the lights. Note when the dampness appears, whether after heavy rain, during irrigation or all year. Tell the technician which rooms are used and whether the basement is finished, as that affects the choice between a membrane and a coating. With this information ready, the inspection can move straight to measuring and pricing.

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

The following signs are worth checking before they grow:

• Damp basement walls
• Salt marks at the bottom of the walls
• Water seeping in after rain

Where the problem usually comes from

• Rainwater draining towards the foundation — we check this before anything else.
• A high groundwater level — we check this before anything else.
• Cracks at construction joints.

Tools and methods, and when we use them

How the work is done, step by step

1. Finding the source: Groundwater, rain or a pipe — each needs a different treatment.
2. Preparation: Surfaces are cleaned and opened where needed.
3. Injection: Active cracks are injected.
4. Waterproofing layers: The system is applied on the right side of the wall where possible.
5. Follow-up: Readings are repeated after the treatment.

Facts and costs — Aldarb

Questions from Aldarb

What we advise against

• Painting the basement wall while the water comes from outside

What you receive

The written output: the source, the treatment and the follow-up result. The report is numbered and can be checked with its verification code.