Borehole + Irrigation Package Deals: What Combined Projects Cost

Bundling a borehole installation with an irrigation system sounds straightforward, but the pricing structure is less obvious than it first appears. Drillers and irrigation contractors are usually different trades, so a “package” is either a driller who subcontracts irrigation, an irrigator who subcontracts drilling, or a rare firm that genuinely does both in-house. Each arrangement prices differently, and the contract you sign determines who is responsible when something goes wrong. Here is what to look for before you commit.

Why homeowners bundle these two projects

The main practical reason is shared disruption. Drilling is noisy and churns up your garden; trenching irrigation lines does the same. Doing both in one mobilisation means one stretch of mess, one crew coordinating access, and one set of reinstatement work (topsoil, lawn, paving). You also deal with a single project timeline rather than scheduling two separate contractors around each other.

There can be a cost benefit too, though it is not guaranteed. A driller who knows the irrigation contractor may negotiate a combined rate on mobilisation and supervision. That said, you lose some negotiating leverage when both scopes are tied to one supplier, so it is worth getting the two scopes priced separately as a benchmark — our guide on how to compare water quotes explains the methodology in detail.

What a typical combined package includes

A well-structured borehole-and-irrigation package should cover, as a minimum:

• Borehole drilling and casing to a depth adequate for the aquifer (depth varies significantly across Johannesburg’s geology)
• Pump and rising main — borehole pumps typically cost R15,000–R35,000 installed
• Surface pump house or control panel with basic protection and isolators
• Water quality test to establish whether the borehole water is fit for irrigation (tested against SANS 241 2024 edition as the relevant benchmark, even for garden use)
• Irrigation mainline and lateral pipework, typically HDPE or uPVC underground
• Irrigation heads or drip zones matched to the garden layout
• Controller and solenoid valves for automated scheduling
• Borehole-to-irrigation connection — the integration point between the two systems

What is frequently not included, even in packages marketed as “complete”:

• Geohydrological survey or site assessment (sometimes charged separately)
• Water use licence or registration fees — check obligations with the Department of Water and Sanitation
• Electrical supply to the pump (your electrician, your cost)
• Reinstatement of paving, tiles or specialised garden features disturbed during trenching
• Ongoing filter maintenance or water treatment if the borehole water requires it

Always ask for a written scope of works that lists inclusions and exclusions line by line.

Rough cost ranges to use as a starting point

As a rough guide only — confirm every number with actual quotes for your site:

Component	Typical range (Johannesburg)
Borehole drilling, casing and development	R40,000–R100,000+
Submersible pump, installed	R15,000–R35,000
Small to medium garden irrigation system	R20,000–R60,000
Combined package (all of the above)	R80,000–R200,000+

The upper end of that combined range applies to deep boreholes, high-yield pumps, large or complex gardens, or where water treatment is needed before the water reaches the irrigation heads. The lower end assumes a reasonably shallow borehole with a good yield and a modest garden layout. Complete borehole systems in Johannesburg typically run R40,000–R150,000, with most falling between R60,000 and R100,000 — irrigation is an additional scope on top of that.

If your project is irrigation-only and the borehole already exists, the cost profile is quite different; our article on using a borehole for irrigation only covers that scenario separately.

If you are weighing up combined quotes against separate tenders, side-by-side comparisons make the differences obvious. Compare 3 free quotes — vetted installers, no obligation.

How packages are typically priced by contractors

Most contractors price a combined project in one of three ways:

1. Lump sum — one number for the whole project. Convenient, but you cannot see where the margin sits or what each scope actually costs.
2. Itemised combined quote — separate line items for drilling, pump, irrigation hardware and labour, presented as one document. This is the most transparent and the easiest to compare against competitors.
3. Two separate quotes stapled together — the driller quotes their scope, the irrigator quotes theirs, and one party acts as overall contractor. Clarity on who carries the integration risk matters here.

Push for option two. It lets you see whether the irrigation component is competitively priced, or whether the margin is being recovered there after the drilling was quoted keenly to win the job.

Yield testing before irrigation design

One sequencing issue that packages sometimes obscure: the irrigation system should be designed after you know the borehole yield, not before. A borehole that yields 1,500 litres per hour supports a very different irrigation setup than one yielding 500 litres per hour. If a contractor designs the irrigation before drilling is complete and the yield tested, you may end up with a system the borehole cannot reliably feed.

Reputable combined-package contractors build in a yield-confirmation step between drilling completion and irrigation design finalisation. Ask explicitly how the contractor handles this sequencing before signing anything. You can read more about the full drilling process on our borehole drilling pillar page.

Registrations, licences and water use

In Gauteng, borehole registration requirements apply regardless of whether the water is used for irrigation or household supply. The Department of Water and Sanitation administers water use licences under the National Water Act, and the Groundwater Division provides guidance on registration thresholds. Failing to register can affect your property and create compliance issues on sale. Your contractor should flag this; if they do not, treat it as a yellow flag on their experience.

Knowing the right questions to ask is half the job — getting multiple quotes from experienced installers is the other half. Request your free quotes here — no obligation, no pressure.

Questions to ask before signing a combined package

Before you commit to any combined borehole-and-irrigation proposal, work through these:

• Is the drilling subcontracted, and if so, who holds the warranty on that scope?
• What happens to the irrigation design if the borehole yield comes in lower than expected?
• Is the water quality test included, and which parameters are tested?
• What is excluded from reinstatement after trenching?
• Are registration and compliance costs included or additional?
• What is the payment schedule, and how does it track to project milestones rather than calendar dates?

A contractor confident in their pricing will answer these without hesitation. Vague answers to any of them warrant a follow-up in writing before you proceed.