What a borehole costs in Johannesburg, and what drives the price
A borehole quote is not a fixed price for a fixed product. Here is what actually moves the number, so you can compare quotes fairly.
Why there is no single price
The most common question about boreholes is what one costs, and the honest answer is that there is no single figure that applies to every stand. A borehole is a job whose main variable - how deep the hole has to go, and how much water it gives - is only known with confidence as the drilling happens. Some Johannesburg drillers publish indicative price tables, and they are a reasonable starting point for the shape of the cost, but they cannot tell you what your property will actually need.
Treat any published number the way you would treat a builder's square-metre rate: useful for orientation, dangerous as a commitment. The two holes that look identical on paper can differ substantially once the rig is on site and the ground starts talking.
The factors that move a drilling quote
Depth is the biggest single factor, because drilling is charged by the metre, and depth is decided on site. Ground conditions come next: hard rock, boulders and certain dolomitic or mined ground drill more slowly and wear equipment faster than softer material, so metre rates reflect the effort as much as the distance. Casing - the lining that keeps the hole open and keeps loose material out - is usually priced separately and depends on how much of the hole needs it.
Whether the hole succeeds first time matters too. If the first position yields too little, a second attempt adds cost, and a quote should say how that is handled rather than leave it to chance. Access for the rig, the distance spoil has to be carted, and the time of year all nudge the number as well.
The system after the hole
The borehole itself is only part of the spend. Turning a hole into a usable supply means a pump sized to the hole and the lift, a control box and level protection, the pipe and cable, storage tanks on a stand or base, and the plumbing to connect it to your garden or house. On some properties a booster pump or a treatment step is added. These items can easily add up to a substantial share of the total, so a quote that covers only the drilling is not the full picture - ask for it to be broken out.
If you plan to use the water for the house as well as the garden, say so before the quote is prepared. Building the system for house supply from the start is usually cheaper than extending it later.
Comparing quotes without being misled
When you have two or three quotes, compare them on scope rather than on the headline figure. Check whether drilling, casing, the pump test and the pump are each included; whether a second position is priced; what happens if the hole yields too little; and how much storage and plumbing is covered. A lower number that omits casing or the pump is not cheaper - it is a different job.
Be wary of a firm promise of water or a fixed depth quoted sight unseen. Both imply a certainty about the ground that nobody has until the hole is drilled. A contractor who is candid about that uncertainty is usually the one worth talking to.
Frequently asked questions
Can I get a fixed price before drilling?
Part of it can be quoted up front, but depth and yield are confirmed on site, so a fully fixed price is not honest unless it is capped with a stated limit. Ask how the contractor handles a hole that needs to go deeper.
Is the cheapest quote the best value?
Only if the scope matches. A low quote that leaves out casing, the pump or the pump test is a different job, not a cheaper one.