Borehole Installers Hermanus | Borehole Drilling Hermanus

Hermanus sits against the Kleinriviersberge on Table Mountain Group sandstone, where yield depends entirely on intersecting a fracture.

Water quality off this formation is excellent when a hole produces, which is part of what makes the uncertainty worth carrying.

What Is Under Hermanus

The formations below are what a rig actually meets on a Hermanus 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
Table Mountain Group sandstone	The dominant formation beneath the slopes and the ground below them	Hard, quartzitic and fractured. Water is held in fractures rather than pores, so the hole either intersects a water-bearing structure or it does not. Hammer drilling is standard and holes are often deeper here.
Scree, talus and colluvium	The apron of loose material below the steeper slopes	Variable thickness, unstable when drilled through, and the part of the profile that usually dictates the casing requirement.
Fault and fracture zones	Cutting across the formation, often following the topography	The actual production targets. Finding them is a siting exercise, not a drilling-deeper exercise.

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

Get a Hermanus Borehole Quote

What That Means for Your Borehole

Results differ sharply between neighbours. Two holes a hundred metres apart on TMG can return very different yields. That is the formation, not the contractor.
Expect a deeper hole than on the sandy areas, and budget per metre accordingly rather than assuming a fixed project cost.
The water is usually excellent quality, soft and low in dissolved solids, which is one of the compensations for the yield uncertainty.

Where We Work Around Hermanus

Hermanus central and the cliff path side
Westcliff and Mount Pleasant
Onrus, Vermont and Sandbaai
Hemel-en-Aarde valley and the wine farms
Fernkloof and the mountainside stands
Voelklip and Eastcliff

What to Watch For Here

Fracture luck governs the outcome here. Two holes on the same street can return very different yields on sandstone, and no amount of extra depth reliably fixes a missed structure.

Hemel-en-Aarde properties are a different case. Valley-floor ground with alluvial cover behaves more predictably than the mountainside stands above the town.

What the Water Is Used For

Irrigating coastal gardens and lawn
Rinsing salt off paving, walls and vehicles
Pool top-up, subject to what the analysis says
Standby supply through restrictions and outages
Keeping mature planting alive through summer

Wellpoint or Borehole?

Not viable. A wellpoint needs saturated sand to draw from, and hard sandstone at or near surface offers nothing a driven point can work with. A drilled hole is the only route here.

Water Quality in Hermanus

Table Mountain Group water is typically soft, low in dissolved solids and slightly acidic, often stained the colour of weak tea by natural humic material from the fynbos catchment. The colour is cosmetic. The acidity matters for copper pipework and is easily corrected.

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

Registration requirements sit with the local municipality and differ from the City of Cape Town's, so confirm what your municipality requires before the rig is booked. The National Water Act applies regardless: reasonable domestic use generally falls under Schedule 1, while irrigation, agricultural 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 Hermanus

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	R600 - R1,400 /m	Quartzite is slow, hard drilling and holes here tend to be deeper than the metro average.
uPVC casing, installed, per metre	R400 - R700 /m	Casing the loose surface material is normal. How much of it there is varies with slope position.
Mobilisation and site establishment	R3,500 - R12,000	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	R110,000 - R280,000+	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.

Hermanus Borehole FAQs

Why are Hermanus borehole results so unpredictable?

Because Table Mountain Group sandstone holds water in fractures rather than in the rock itself. A hole that intersects a well-connected fracture zone produces; one that misses it may not, at any depth.

That is why a geophysical survey carries real weight here and why per-metre pricing is the only honest structure for a quote.

Is Hermanus borehole water good quality?

Usually very good - soft, low in dissolved solids, and often tea-coloured from natural humic staining off the fynbos catchment, which is cosmetic.

The parameter worth correcting is low pH, which works on copper pipework over time. A water analysis quantifies it and the correction is straightforward.

Why do two boreholes in Hermanus give such different yields?

Because Table Mountain Group sandstone holds its water in fractures rather than in the rock itself. A hole that intersects a well-connected fracture zone produces; one that misses it by a few metres may not, at any depth.

That is why siting carries more weight here than anywhere else in the metro, and why honest contractors quote a per-metre rate rather than a project price.

Is the brownish colour in Hermanus borehole water a problem?

Usually not. Tea-coloured water on Table Mountain Group ground is natural humic staining washed off fynbos catchment, and it is cosmetic rather than a health issue.

The water analysis is what settles it. If the colour bothers you it filters out readily, and the more useful thing the analysis flags is low pH, which is worth correcting before it works on your pipework.