Basement & foundation waterproofing in Jeddah: for companies (annual contract)
In short: In Jeddah (Jeddah), basement & foundation waterproofing (for companies (annual contract)) begins with the moisture meter for ceilings and walls and the crack injection (polyurethane or epoxy); nothing is opened until the position is clear. Jeddah is about 2 km from the sea coast (OpenStreetMap). Published price: Crack injection (per metre), SAR 40–125 per m; anything else is quoted after the inspection.
What is specific about Jeddah for basement & foundation waterproofing
Jeddah is about 2 km from the sea coast (OpenStreetMap). The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data).
Team note on Jeddah: 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..
For companies in Jeddah, the first thing checked on a basement or foundation job is the ground the building sits on, because the city's position shapes how water moves around the structure. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data), and the city is about 2 km from the sea coast (OpenStreetMap). Both facts matter: a site close to the coast with little elevation difference can hold groundwater near the foundation, so the technician records where water is likely to collect, how the surrounding levels fall, and whether the basement wall or floor is exposed to standing moisture for long periods.
Several points can only be settled at the site visit. The technician walks the perimeter and the basement to find existing cracks, damp patches, efflorescence and any signs of past repairs. They check the condition of the concrete, the drainage around the building and the routes water takes after rain. They decide whether crack injection is needed, measure the areas to be covered, and confirm whether the job is a basement wall, a floor slab or a water tank, since each uses a different system. Costs depend on those measurements and the chosen method, so the quotation is only firm once the visit is complete, and the visit is also where the company's own needs, such as access hours and occupied floors above, are agreed.
To help the technician prepare, the company should supply the building's drawings, the age of the structure, any earlier waterproofing records and a note of where leaks have appeared. Information about how the basement is used, whether it holds plant, stock or a car park, helps in choosing a suitable coating. For reference, basement waterproofing typically falls within SAR 55–160 per m², epoxy coating within SAR 35–95 per m², crack injection within SAR 40–125 per m, and tank internal coating within SAR 25–65 per m². These ranges are starting points only and will be refined once the site has been seen and the scope confirmed.
For companies, an annual contract sets the scope, the visit schedule and the reports in writing.
Signs that call for basement & foundation waterproofing
The following signs are worth checking before they grow:
- Salt marks at the bottom of the walls
- Damp basement walls
- Water seeping in after rain
Causes we see in the field
- A high groundwater level — we check this before anything else.
- Rainwater draining towards the foundation — we check this before anything else.
- Cracks at construction joints — we check this before anything else.
Tools we use in Jeddah
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
| Crack injection (polyurethane or epoxy) | Stopping active water through cracks | Limits: treats the crack, not the water source |
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
From the first visit to the report
- Finding the source: Groundwater, rain or a pipe — each needs a different treatment.
- Preparation: Surfaces are cleaned and opened where needed.
- Injection: Active cracks are injected.
- Waterproofing layers: The system is applied on the right side of the wall where possible.
- Follow-up: Readings are repeated after the treatment.
Jeddah in facts and sources
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Jeddah is about 2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | Team note on Jeddah: 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. | Kashf team |
| Crack injection (per metre) | SAR 40–125 per m | Owner price list (Jeddah) |
| Basement waterproofing (per m²) | SAR 55–160 per m² | Owner price list (Jeddah) |
Short answers for Jeddah
Can I use household chemicals instead of calling a technician?
Using unsuitable chemicals may corrode pipes and does not fix the root cause of the blockage, so it is better to rely on a specialist technician.
What is the difference between foam insulation and other types of insulation?
Foam insulation is easy to apply on uneven surfaces and forms one continuous layer with no joints, while other types, such as bitumen rolls, need the joints to be welded. The contractor decides which is most suitable after inspecting the site.
Can thermal insulation be applied to an existing building?
Yes, thermal insulation can be installed on the roofs and walls of existing buildings without the need for major structural modifications. The contractor prepares the surface, then applies the insulating material and the protective layer over it.
What is the first step of basement & foundation waterproofing (for companies (annual contract))?
We start with finding the source (groundwater, rain or a pipe — each needs a different treatment), then preparation (surfaces are cleaned and opened where needed).
How much does basement & foundation waterproofing cost in Jeddah?
From our published price list: Crack injection (per metre) SAR 40–125 per m; Basement waterproofing (per m²) SAR 55–160 per m². Quantities are confirmed at the inspection.
What do I get at the end?
The source, the treatment and the follow-up result, in a technical report that carries a verification code.
Common mistakes we see
- Painting the basement wall while the water comes from outside
The written outputs
The written output: the source, the treatment and the follow-up result. The report is numbered and can be checked with its verification code.
Planning the visit in Jeddah
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- If you rent, tell your landlord or building management before the visit and agree in writing who pays; the written report can be shared with them.
- Have access ready to the water meter, the tank hatches, the roof and the main valve; in apartment buildings the roof keys are often with the building guard (haris).
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
Sources and method
- SRTM (NASA) open data
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Customer questions (reviewed)
- Owner price list for Jeddah
- Local pages are published only after a quality gate: real local facts, text similarity of no more than 15% with any other English page, and a claims check.
- النسخة العربية