Basement & foundation waterproofing in Dammam: cost & published offers

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

What is specific about Dammam for basement & foundation waterproofing

Team note on Dammam: 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.. Dammam is about 4.3 km from the sea coast (OpenStreetMap).

The centre of Dammam sits about 12 m above sea level (SRTM open elevation data).

Water entering a basement or foundation in Dammam usually comes in through cracks in the slab and along the wall-to-floor joint, and the most common complaint is damp patches that return after heavy rain or when the water table rises. Dammam's centre sits about 12 m above sea level, and the city is about 4.3 km from the sea coast. Those two facts matter: the ground around a basement here is not so high that surface run-off drains away quickly, and the nearness of the coast means groundwater and salt can reach the foundation. A waterproofing plan for a basement in this area should therefore look at the wall and floor together, rather than treating only the visible crack.

Because of these local conditions, the approach usually combines methods. Crack injection is priced at SAR 40–120 per metre and is used to seal active leaks along joints and cracks, while a basement wall surface may be treated with a membrane or coating priced at SAR 50–150 per m² for basement waterproofing as a whole. Epoxy coating, at SAR 35–90 per m², is used where a hard, smooth finish is wanted. For the wider space, XPS boards at SAR 10–30 per m² are an option where insulation and drainage are part of the work. Rates vary with the size of the job, the condition of the surface, and the access available, so the quote should show which method is proposed for each area.

Before booking a visit, ask the provider to state in writing which waterproofing method they recommend for the basement walls and which for the floor, and why. Ask whether the price is per m² or per metre and how the area was measured. Ask what preparation the surface needs and whether it is included in the figure. Confirm whether crack injection is quoted separately and how many metres it covers. Ask how the work will be tested before the basement is used again, and what the provider will do if water returns in the same spot. A clear, itemised answer to these questions is a good sign that the visit will be useful.

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 basement & foundation waterproofing?

These are the signs most often linked to basement & foundation waterproofing:

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

Where the problem usually comes from

• Cracks at construction joints — we check this before anything else.
• A common cause: a high groundwater level.
• A common cause: rainwater draining towards the foundation.

How we choose the tool in Dammam

The steps in order

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 Dammam

Short answers for Dammam

What we advise against

• Painting the basement wall while the water comes from outside

What you get after the work

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