Fourways is built on dome granite. A soft layer of rotten granite usually caps harder bedrock, and the more productive water strikes tend to sit in fractures and along dykes rather than in the upper weathered zone.
Housing is dominated by gated estates and sectional title complexes, with Dainfern and the Jukskei River valley on one side and dense retail and office growth around the Fourways shopping node on the other.
What Is Under Fourways
| Formation | Where it sits | What it means for drilling |
|---|---|---|
| Archaean granite basement | Under the weathered layer across the area | Unbroken granite is close to dry. Productive holes are the ones that meet a water-bearing fracture. |
| Saprolite and residual sand-clay | From surface down to fresh rock on most properties | Easy to drill and prone to collapse. Its base is commonly the first water strike. |
| Dyke lines and spruit-aligned fractures | Along the Jukskei and its tributaries and across the open ground | The broken ground beside these features is where yields improve, and it is what a survey traces. |
Send your street and what the water is for, and get an itemised quote for Fourways.
Get a Fourways Borehole QuoteWhat That Means for Your Borehole
- Open ground gives more siting options which makes a survey easier to act on than on a tight suburban stand.
- Yields are typically moderate so storage sized for peak days is usually part of the design.
- Water quality is usually good but livestock, septic systems and fertiliser use are worth keeping away from the headworks.
Where We Work Around Fourways
- Dainfern and Dainfern Valley
- Fourways Gardens estate
- Cedar Lakes and Craigavon
- Lonehill and Magaliessig
- Jukskei River valley stands
- Douglasdale
- Complexes off William Nicol Drive
What to Watch For Here
Sectional title schemes need body corporate consent. In a complex the ground usually belongs to the body corporate, so a borehole is a common property decision rather than an individual one. Trustees often want a formal resolution, a plan for sharing water and costs, and agreement on where the rig and spoil can go without blocking neighbours' garages or the access road.
Riverside stands near the Jukskei have their own issues. Close to the river the ground may carry a thin layer of alluvium over granite, and drainage lines collect runoff from built up areas upstream. Keeping a sensible distance from the watercourse and any sewer lines, sealing the wellhead against floodwater, and having the water analysed, is wise on these properties.
What the Water Is Used For
- Shared garden irrigation across a sectional title complex
- Keeping estate lawns and verges alive in winter
- Pool top ups without drawing on metered water
- Water security when the Fourways supply is interrupted
- Irrigating sports fields and communal landscaping
Wellpoint or Borehole?
Usually not. A driven point needs clean sand and a water table within about seven metres, and the weathered granite here provides neither on most properties. Drill instead.
Approval and Abstraction
Fourways falls under the City of Johannesburg. Both main metros require approval before drilling. The City of Johannesburg requires an application to its Environment and Infrastructure Services Department, and an approved application comes with a drilling certificate that has to be kept on site while the rig works; drilling without one risks a fine and impoundment of equipment. The City of Ekurhuleni requires authorisation, with applications reviewed by its Dolomite Section and by Water Demand Management. Elsewhere, including Mogale City, confirm the municipality's current requirements. Separately, the National Water Act governs how much you may abstract: reasonable domestic use generally falls under Schedule 1, and in 2026 the Department of Water and Sanitation confirmed that households using borehole water for reasonable domestic purposes do not need to register nationally. Commercial, agricultural and larger abstraction may need registration or a water use authorisation. Rules change, so confirm the current position before drilling.
Related Services
For the drilling process itself, the geology across the wider area and how a quote is put together, see Borehole Drilling Johannesburg.
Nearby Areas
Borehole Prices in This Area
Drilling is charged per metre, so depth drives the total. The ranges below are framed for local ground conditions and access.
| Item | Indicative range | What moves it locally |
|---|---|---|
| Drilling, per metre | R450 - R1,100 /m | The weathered mantle drills fast; fresh granite does not. Deeper holes for larger demand push the total up rather than the rate. |
| uPVC casing, installed, per metre | R400 - R700 /m | Casing runs through the weathered granite, which can be thicker on this open ground. |
| Mobilisation and site establishment | R2,500 - R9,000 | Access and site conditions move this; a site visit settles it before quoting. |
| Water survey | R5,000 - R12,000 | Targets structure rather than depth. Worth most where yield is fracture-dependent. |
| Yield testing | R3,500 - R15,000 | Establishes the sustainable rate that pump selection depends on. |
| Pump, supplied and installed | R15,000 - R45,000 | Greater depth means more head, which means a larger pump and heavier cable. |
| Storage and booster | R12,000 - R35,000 | Needed wherever peak demand exceeds the borehole's sustainable rate. |
| Typical complete project | R60,000 - R180,000+ | Everything above, excluding treatment, which depends entirely on the water analysis. |
These are indicative ranges, not a quotation. They are compiled from published South African supplier and contractor pricing to give you a starting point for budgeting. They are not our rate card, and no figure here is a commitment.
Treat them as a broad guide only. Published borehole pricing in South Africa varies enormously - 2026 guides quote per-metre drilling rates for Gauteng ranging from under R300/m to R1,500/m, a spread of more than five to one - because depth, geology, access, specification, distance and fuel costs all move the number. Depth in particular is not known until the hole is finished. Figures generally exclude VAT unless noted, and change over time. Only an itemised written quote against your actual site means anything.
Fourways Borehole FAQs
How does the granite under Fourways affect drilling?
The upper section usually passes through decomposed granite, which drills easily but is loose enough that casing must be installed to keep it open. Fresh granite below is hard and progresses slowly, so the rig spends most of its time there.
Water typically enters along fractures and the weathered transition zone, so two holes in the same estate, even a few houses apart, may give quite different results.
Can a Fourways complex share one borehole between units?
Many do, usually for communal gardens and sometimes with a tank feeding a separate irrigation line. The body corporate decides, and rules on cost sharing, metering and maintenance are best agreed in writing beforehand so that nobody is surprised later.
Municipal approval from the City is still needed before drilling, and larger shared abstraction deserves a closer look at the DWS registration rules.
What do Dainfern and other Fourways estates usually require before drilling?
Expect the estate to ask for an application, contractor details, insurance cover and agreed working hours, and sometimes a refundable deposit against damage to kerbs. Some also specify how drilling fluid and cuttings must be contained so roads and stormwater drains stay clean.
Getting these approvals in hand together with the municipal certificate avoids a rig being turned away at the gate on the morning of the job.
Is borehole water in Fourways good enough to drink?
Granite groundwater is often of reasonable quality, yet a dense suburb has many potential sources of contamination, from old soakaways to leaking sewers and fertilised lawns. Quality cannot be assumed from a neighbour's result.
A full lab test shows whether filtration or disinfection is needed before any of it reaches a kitchen tap or the household plumbing.
DRILLING IN FOURWAYS?
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