How to Check a Water Installer's Credentials

Hiring the wrong person to drill a borehole or install a backup water system is an expensive mistake. Get it wrong and you could face a failed pump, an unregistered installation that voids your home insurance, or no legal recourse when things go wrong. This guide walks you through exactly what credentials to check, what they actually mean, and what to do if an installer can’t produce them.

The One Registration That Actually Matters Most

In South Africa, plumbing work on any water reticulation system — including installations that connect to your home’s existing pipework — must legally be carried out by a person registered with the Plumbing Industry Registration Board (PIRB). This is not optional, and it is not just a technicality.

A PIRB-registered plumber has passed trade tests administered under the National Qualifications Framework and can issue a Certificate of Compliance (COC) for the installation. Without a COC, you may struggle to sell your property, and your insurer has grounds to reject a water-damage claim if an unregistered installation is implicated.

How to verify PIRB registration: ask the installer for their PIRB membership number and check it directly on the PIRB website (listed in the sources below). Registration status is public and takes about two minutes to confirm.

For borehole drilling specifically, the National Water Act requires the borehole to be registered with the Department of Water and Sanitation once drilled. A credible installer will either handle this or walk you through it — if they look blank when you mention it, that is a red flag.

Trade Qualifications and What They Signal

PIRB registration is the credential; the qualification is what underpins it. Look for one or more of the following:

• Red Seal (National Trade Certificate: Plumber) — the national trade qualification, recognised across provinces.
• NQF Level 3 or 4 plumbing qualifications — relevant for assistants or apprentices, but a sole operator should hold higher.
• Borehole drilling or hydrogeological training — there is no single universal requirement here, so ask specifically about their borehole work history and whether the driller holds a DRILLERS’ qualification through a body such as the South African Borehole Owners Association (SABO).

Qualifications without active registration mean very little in practice, so always confirm both.

Credential	Why It Matters	How to Verify
PIRB registration	Legal requirement; enables COC	PIRB online register
Red Seal / NQF trade cert	Confirms formal training	Ask to see the certificate
DWS borehole registration	Legal requirement post-drilling	Department of Water and Sanitation
Public liability insurance	Covers damage during work	Request a copy of the policy schedule
Manufacturer accreditation	Supports warranty validity	Confirm with the manufacturer directly

Insurance: Do Not Skip This Step

Public liability insurance protects you if the installer damages your property — a burst pipe, a cracked foundation during drilling, or a pump that takes out your electrical board. If they are uninsured and something goes wrong, you are chasing a private individual for damages, which is difficult and slow.

Ask for a copy of their current policy schedule — not just their word that they are covered. Check the expiry date and the coverage limit. For a full borehole installation (which can run anywhere from R60,000 to R100,000 for most Johannesburg homes), a minimum of R1 million in public liability coverage is a reasonable baseline, though you should confirm what is typical via your own broker.

Some installers also carry professional indemnity insurance, which covers design errors and advice. This is less common in the trade but worth asking about for larger, more complex systems.

Want to skip the legwork of checking credentials yourself? Compare 3 free quotes — vetted installers, no obligation.

Manufacturer Accreditations and What They Actually Mean

Many pump and tank suppliers — Grundfos, JoJo, DAB and others — run installer accreditation or training programmes. An accredited installer has typically completed product-specific training and may be authorised to register warranty claims on your behalf.

This matters more than it sounds. If your pump fails under warranty and the installer is not accredited by that manufacturer, you may have to deal with the warranty claim yourself, which takes time and often costs money in the interim.

That said, manufacturer accreditation is a bonus credential, not a replacement for PIRB registration. An accredited-but-unregistered installer is still an unregistered installer.

References and Reviews: Useful, But Treat Them Carefully

Credentials tell you whether an installer is legally entitled to do the work. References tell you whether they actually do it well. Both matter.

When you ask for references, ask specifically for completed jobs of the same type as yours — a borehole reference is not much use if you are installing a tank-and-pump backup system. Ask the reference directly: did the installer arrive on time, was the final cost close to the quote, and would they use them again?

For online reviews, look for patterns rather than isolated comments. A single five-star review from six years ago tells you very little. Our guide on how to read and verify installer reviews and references covers what to look for and which platforms are most reliable in the Johannesburg context.

It also helps to go into any installer meeting with a prepared list of questions. Our article on questions to ask any installer before you sign gives you a ready-to-use checklist that covers credentials, warranties, timelines and payment terms.

What WaterQuotes Checks Before Listing an Installer

We vet every installer on our platform before they can receive quotes from homeowners. The process is documented in full on our vetting standards page, but at a high level we confirm PIRB registration, insurance status, and trading history. We do not accept self-certification — we check primary sources.

That said, registrations expire and insurers change. Our advice is always to ask for current documents yourself, regardless of where you found the installer. A credible operator will have no hesitation handing over their PIRB number and insurance schedule.

Ready to get prices from installers whose credentials we've already confirmed? Request your free quotes here — no cold calls, no obligation.

Red Flags to Walk Away From

Not every installer will tick every box, but some gaps are dealbreakers. Walk away — or at minimum, get a second opinion — if:

• The installer cannot give you a PIRB registration number, or the number does not appear on the PIRB register.
• They are unwilling to provide proof of insurance.
• They ask for a very large upfront deposit (typically more than 30–40% is a warning sign — confirm what is normal via your quotes).
• They cannot tell you whether your borehole will need to be registered with DWS.
• They pressure you to decide before you have had time to check their credentials.

Verifying credentials takes an hour at most. It is the cheapest risk-management step available to you before committing to a system that could run well into six figures.