Pretoria North sits beyond the Magaliesberg ridge, on the mafic rocks of the Bushveld Complex rather than on the Pretoria Group ground south of it.
That is a genuinely different aquifer: water here sits in the weathered mantle and jointing, not in fractured sedimentary rock.
What Is Under Pretoria North
| Formation | Where it sits | What it means for drilling |
|---|---|---|
| Bushveld Complex norite and gabbro | The bedrock across the ground north of the Magaliesberg ridge | Coarse mafic rock that carries water only where it is deeply weathered and jointed. Where it is fresh and unfractured it is close to barren. |
| The weathered mantle | The zone between soil and fresh rock, from a few metres to tens of metres thick | The zone that actually produces. Its thickness, rather than the total depth of the hole, is what decides the outcome. |
| Granophyre ridges and diabase dykes | The low ridges and intrusions cutting the mafic sequence | Joints and contacts carry water; the intrusive body itself does not. Locating them is what a survey is for on this ground. |
Send your street and what the water is for, and get an itemised quote for Pretoria North.
Get a Pretoria North Borehole QuoteWhat That Means for Your Borehole
- Depth of weathering is the thing that matters rather than how deep the hole goes in total.
- Drilling past fresh unfractured norite adds cost without adding yield so knowing when to stop is part of the job.
- Iron and manganese are worth testing for because mafic ground more often produces water that stains and needs treatment.
Where We Work Around Pretoria North
- Pretoria North and its older streets
- Akasia and Karenpark approaches
- Theresapark and Chantelle side
- Wonderboom boundary
- Rosslyn and industrial properties
- Smallholdings north of the suburbs
- Schools and community grounds
What to Watch For Here
The ridge is a real geological boundary, not just a landmark. Crossing the Magaliesberg means crossing from the sedimentary rocks of the Pretoria Group onto the norite and gabbro of the Bushveld Complex. Depth expectations, drilling rates and likely water quality all change with it, so advice written for the southern suburbs does not transfer.
Depth of weathering matters more than total depth. Norite carries water where it has been deeply weathered and jointed and is close to barren where it is fresh. Drilling on past the base of weathering into unfractured rock adds cost without adding yield, so knowing when to stop is part of the job.
What the Water Is Used For
- Irrigation over the long dry season before the summer rains
- Continuity cover during water interruptions
- Cutting the volume bought from the metro each month
- Estate common property and verge irrigation
- School, sports field and institutional grounds
Wellpoint or Borehole?
No. A wellpoint needs clean sand and shallow water; this ground offers clay over mafic rock. Groundwater north of the ridge is reached by drilling into the weathered zone.
Registration and Abstraction
A completed borehole here should be registered with the City of Tshwane, and the responsibility for that sits with the property owner rather than with the driller. Separately, the National Water Act governs how much you may abstract: reasonable domestic use and small-scale gardening generally fall under Schedule 1, while larger, agricultural or commercial abstraction may require registration or a water use authorisation from the Department of Water and Sanitation. The position on domestic registration was being actively revised during 2026, so confirm your obligations before drilling rather than afterwards.
Related Services
For the drilling process itself, the geology across the wider metro and how a quote is put together, see Borehole Drilling Pretoria.
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 | R500 - R1,200 /m | The weathered upper section is quick; the fresh rock beneath it is not. Nobody knows where one becomes the other until the rig gets there. |
| uPVC casing, installed, per metre | R400 - R700 /m | Set by diameter and class, with the length following the depth of the weathered mantle, which is inconsistent across this 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 | R70,000 - R200,000+ | 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.
Pretoria North Borehole FAQs
Is the ground north of the ridge different?
Substantially. South of the Magaliesberg is Pretoria Group sedimentary rock; north of it is the norite and gabbro of the Bushveld Complex.
Water occurs in the weathered mantle and jointing rather than in bedding and fractures, so both the drilling approach and the expectations differ.
How deep do boreholes go in Pretoria North?
The useful target is the weathered zone above fresh rock, and its thickness varies from a few metres to tens of metres.
Drilling far below it into fresh unfractured norite generally adds cost rather than yield, which is why a contractor who keeps going without a target should be questioned.
Does norite water need treatment?
It more often carries iron and manganese than water from the sedimentary ground south of the ridge, and those cause staining and taste problems.
Both are treatable, but the treatment should be specified from a laboratory analysis rather than fitted speculatively.
Are yields good in Pretoria North?
Moderate where weathering is deep and jointing is well developed, and poor where the rock is fresh close to surface.
The variation over short distances is considerable, which makes siting worth doing properly here.
DRILLING IN PRETORIA NORTH?
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