Borehole Deposit and Payment Terms: What's Normal

Paying a deposit before any work begins is standard practice in the construction and installation trades. Borehole drilling is no different — the contractor needs to mobilise equipment, order materials, and schedule a crew. The question isn’t whether you’ll pay a deposit, but how much is reasonable, what you should receive in writing, and which payment demands should send you looking for a different installer.

What a reasonable deposit looks like

For most borehole projects, a deposit in the range of 30–50% of the total quoted price is broadly normal. This gives the contractor enough working capital to begin without placing all financial risk on you before a drop of water has been struck.

The deposit should only be paid once:

• You have a written, signed contract in hand
• The contract states exactly what work is included, the drilling method, the casing specification, and the pump or equipment to be supplied
• A clear payment schedule is attached — showing what each remaining payment covers and when it falls due

If any of those three elements are missing, the deposit conversation should wait.

How payment milestones should be structured

A well-structured borehole payment schedule links money to progress, not to dates on a calendar. A typical breakdown might look like this:

Milestone	Typical payment portion
Contract signed, mobilisation	30–50% deposit
Drilling complete, borehole yield confirmed	25–35%
Pump installed and commissioned, water test submitted	Balance

Note that “water test submitted” matters. Under SANS 241 — South Africa’s drinking-water quality standard — borehole water requires testing before it is considered safe for domestic use. A reputable installer will hand you a test report, not just a verbal assurance. Tying final payment to receiving that report is entirely reasonable.

The exact split varies by project size and contractor. Use the table above as a negotiating framework, not a fixed rule, and confirm the specifics through written quotes.

What the contract must include before you sign

Paying a deposit without a proper contract leaves you with very little recourse. At minimum, the document should cover:

Scope: Drilling depth (or depth range), casing diameter and material, pump specification, borehole development method, and what happens if no water is struck at the agreed depth.

Pricing: A fixed price or a clearly explained variable (for example, a per-metre rate beyond an agreed base depth). Vague “cost-plus” arrangements with no cap are risky.

Timeline: Start date, estimated duration, and what constitutes a delay the contractor is responsible for.

Warranty: What is covered, for how long, and who handles pump or casing defects.

Payment terms: Every milestone, every amount, in writing.

The National Consumer Commission (NCC) and the Consumer Goods and Services Ombud (CGSO) both handle disputes between consumers and service providers. Having a signed, detailed contract is the single most useful document if a dispute arises. Without it, your options narrow significantly.

Before you commit to any installer, it’s worth reading through the broader borehole drilling guide to understand what the full process involves, so you can check whether the contract actually reflects the work you’ve agreed to.

Not sure whether the deposit and terms in front of you are reasonable? Compare 3 free quotes — vetted installers, no obligation.

Payment red flags to take seriously

Some demands are simply outside the bounds of normal practice. Walk away — or at minimum get independent advice — if a contractor:

Asks for 100% upfront. No legitimate installer needs full payment before drilling starts. This structure gives you no leverage at all if the work is substandard or never completed.

Refuses to provide a written contract. “We do it on a handshake” is not acceptable for a project that can cost R60,000 to R100,000 or more in Johannesburg. A verbal agreement is extremely difficult to enforce.

Demands cash only with no receipt. Any payment, including the deposit, should come with a written receipt on company letterhead showing the amount, date, and what it covers.

Moves the goalposts after you’ve paid. A mid-project request for additional funds beyond the agreed schedule — without a written variation order explaining the reason — is a warning sign. Legitimate cost overruns happen, but they should be documented and agreed before extra money changes hands.

Cannot provide a VAT invoice or company registration details. A registered business can produce these on request. If they can’t, you have no way to verify who you’re contracting with.

For a fuller list of contractor behaviour to watch for, the post on red flags in a borehole quote covers the quotation stage in detail.

What happens if no water is found

This is the scenario nobody wants, but it’s worth understanding before you sign anything. Borehole drilling always carries some risk of a dry or low-yield hole — that is the nature of hydrogeology. What varies between contractors is how they handle it.

Before paying your deposit, ask directly: What is your policy if the borehole yields insufficient water? The answer should be in the contract. Common approaches include:

• A defined minimum yield below which drilling continues at the contractor’s cost (within a capped depth)
• A partial refund structure if a certain depth is reached with no viable yield
• Clear language on what “completed work” means even in a dry-hole scenario

There is no single industry-standard policy, so compare what different installers offer. Be wary of any contract that defines completion purely as “drilling to X metres” with no reference to yield at all — that structure protects the contractor, not you.

Getting multiple written quotes makes it far easier to spot payment terms that are out of step with the market. Request quotes from vetted installers — free, and no obligation to proceed.

Protecting yourself from the start

The deposit conversation is actually one of the most useful signals about the kind of contractor you’re dealing with. An installer who pushes back on providing a written contract, who can’t explain what each payment milestone covers, or who insists on cash with no documentation is telling you something important about how the rest of the project will go.

Keep copies of every document — the quote, the contract, every payment receipt, and any written communication about changes. If a dispute does arise, the Consumer Goods and Services Ombud (CGSO) and the National Consumer Commission (NCC) offer formal channels for resolving it, but both will ask for exactly this kind of paper trail.

A fair deposit, a clear contract, and milestone-linked payments don’t guarantee a perfect project. But they do mean that if something goes wrong, you’re in a much stronger position to do something about it.