Basement & foundation waterproofing in Aljumum: for companies (annual contract)

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

What is specific about Aljumum for basement & foundation waterproofing

The centre of Aljumum sits about 200 m above sea level (SRTM open elevation data). Team note on Aljumum: 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..

Basement and foundation waterproofing in Aljumum most often starts with water finding its way through cracks and cold joints in the lower walls and slab. For companies that own or run commercial buildings with underground storage, plant rooms or parking, the first sign is usually damp patches, efflorescence or a musty smell after rain. Left alone, that moisture can damage stored stock, equipment and finishes, so a quick visual check is rarely enough. A proper survey should trace where the water is coming from before any material is chosen.

Aljumum sits at about 200 m above sea level, and that matters for the approach. Sites at this elevation can see strong seasonal rainfall that runs down sloping ground toward the building, so surface drainage around the foundation often matters as much as the wall itself. Crack injection is typically priced per metre, with a range of SAR 40–120 per m, which makes it a sensible first step where leaks are isolated. Where the wall is damp across a large area, a membrane or coating is a better fit. Options include bitumen membrane at SAR 15–35 per m², epoxy coating at SAR 35–90 per m², and basement waterproofing at SAR 50–150 per m². XPS boards at SAR 12–30 per m² can add insulation where walls are cold, and spray foam at SAR 20–45 per m² suits awkward shapes. The right mix depends on what the survey finds.

Before the visit, ask the provider a few direct questions. Ask whether the survey will identify the source of water, such as groundwater, surface run-off or a plumbing fault, rather than only treating the surface. Ask how the quote is measured, since basement, crack and membrane work are priced differently, and whether the figure covers preparation and drainage. Ask which materials they propose and why, and whether the work will disrupt stored goods or operations. Finally, ask for a written scope that lists the areas, the methods and the expected outcome, so your company can compare proposals fairly.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

When do you need basement & foundation waterproofing?

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

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

The most common causes

• 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 — we check this before anything else.

How we choose the tool in Aljumum

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.

Quick comparison: facts and costs in Aljumum

Questions from Aljumum

Common mistakes we see

• Painting the basement wall while the water comes from outside

What you receive

You receive: the source, the treatment and the follow-up result, in a technical report with a verification code.