Borehole Installers Illovo | Borehole Drilling Illovo

Illovo sits on Halfway House Granite between Sandton and Rosebank, with a mix of large residential stands and commercial property.

Moderate yields, constrained urban access and a service-dense environment.

What Is Under Illovo

The formations below are what a rig actually meets on a Illovo property, and between them they govern the depth, the casing requirement and what the hole will realistically give you.

Formation	Where it sits	What it means for drilling
Halfway House Granite	The Archaean granite-gneiss basement under the northern suburbs	Water occurs in the weathered mantle and in jointing and fracture zones below it, not in the rock mass. Depth to fresh granite varies noticeably across short distances.
Weathered mantle and saprolite	The decomposed upper zone above fresh rock	Often tens of metres thick here, holds useful water, and needs casing to stop the hole collapsing.
Diabase dykes	Cutting the granite, frequently following valleys and drainage lines	Dyke contacts are the best targets on this ground and are what a geophysical survey is looking for.

Send your street and what the water is for, and get an itemised quote for Illovo.

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What That Means for Your Borehole

Dyke contacts and fracture zones are the targets. Solid granite between them yields very little at any depth.
Yields are moderate and site-specific. A good hole here supplies a large garden comfortably; it is not an irrigation scheme.
Depth to fresh rock is the key unknown, and it is only settled once drilling starts.

Where We Work Around Illovo

Illovo and Illovo Boulevard
Rosebank and Hyde Park boundaries
Melrose approaches
Sandton side
Office properties off Oxford Road
Larger residential stands

What to Watch For Here

Service density in this corridor is high, which makes a proper services check before siting essential.

Urban erven limit the rig positions available, and the site visit usually determines the position before geology does.

What the Water Is Used For

Irrigating established gardens and mature trees
Topping up the pool, subject to what the analysis says
Washing paving, vehicles and hard surfaces
Standby supply when municipal water is interrupted
Reducing a monthly municipal water bill

Wellpoint or Borehole?

Not viable. There is no shallow saturated sand aquifer under the northern suburbs, and weathered granite is not something a driven point can work in.

Water Quality in Illovo

Granite groundwater here is usually moderately mineralised and reasonably good quality. Iron is the most common nuisance parameter. Nitrate is worth testing for on older properties that once ran septic systems, which covers a good deal of the northern suburbs.

A water analysis is what turns that from a general expectation into a number for your specific hole, and treatment should be specified against the result rather than against the area's reputation.

Registration and Abstraction

Johannesburg Water's by-laws require boreholes to be registered with the City, and prohibit any physical connection between a borehole system and the municipal reticulation. The National Water Act sits above that: reasonable domestic use generally falls under Schedule 1, while irrigation or commercial abstraction may require registration or a water use authorisation from the Department of Water and Sanitation. Requirements change, so confirm your position before drilling.

Related Services

Borehole Water Survey South AfricaDeciding where to drill Borehole Testing South AfricaWhat the borehole sustainably yields Borehole Pumps Installation South AfricaPumps sized to tested yield Borehole Tank Installation South AfricaStorage for irrigation peaks Borehole Water Testing South AfricaQuality and salinity analysis Borehole Drilling Prices South AfricaHow a quote is structured

For the drilling process itself, the geology across the rest of the country and how a quote is put together, see Borehole Installers South Africa.

Borehole Prices in Illovo

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 - R1,000 /m	Fresh granite is hard drilling. The weathered zone above it is faster but variable in thickness.
uPVC casing, installed, per metre	R400 - R700 /m	Casing through a thick weathered mantle is standard on 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	R75,000 - 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 - different 2026 guides quote per-metre drilling rates for the same province that differ by a factor of three - 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.

Illovo Borehole FAQs

Is there space to drill on an Illovo property?

Often, but it needs establishing at a site visit. A truck-mounted rig needs both a route in and working space at the drilling point, and dense development constrains both.

Where access is genuinely tight, smaller rigs exist, though they change the cost and sometimes the achievable depth.

What is the water quality like in Illovo?

Generally reasonable on granite, moderately mineralised, with iron the usual nuisance parameter. Nitrate is worth checking on older properties.

A laboratory analysis after yield testing is what turns that general expectation into a specific treatment decision.

Can a borehole in Illovo supply a whole household?

Frequently yes for a household and garden, provided the system is designed around a tested sustainable yield with storage rather than around the pump's maximum output.

What it will not usually do on granite is behave like a municipal connection with unlimited instantaneous flow. Storage and a booster set are what bridge that gap.

Does a water survey make sense in Illovo?

On granite, yes. The water is in dyke contacts and fracture zones, and geophysics is the practical way to find them before committing a rig to a position.

It changes the odds rather than guaranteeing an outcome. On a small stand with only one viable rig position it may add less, and a good contractor will say so.