When you hire a tradesperson in New Zealand, the difference between “experienced” and “properly authorised” can matter for safety, insurance, council sign-off, and your rights if something goes wrong. The good news is that most key trades have public registers or clear licensing pathways you can check before work starts.
Why checking qualifications matters
Not every job needs a formal licence, but many do. If an electrician, plumber, gasfitter, drainlayer, or building practitioner is not properly licensed or registered for the work they are doing, you could end up with unsafe work, delayed consent sign-off, or problems making an insurance claim after a fault or leak.
In New Zealand, checking a tradesperson is qualified is especially important for work that affects:
• electrical safety
• gas appliances and pipework
• water supply and sanitary systems
• structural building work and council consent compliance
The difference between experience and authorisation
A tradesperson can be highly skilled and still not be legally allowed to do every part of a job. For example, a builder may be excellent at renovations but still need a licensed building practitioner status for restricted building work. A handyman may be fine for minor tasks, but not for electrical or gas work that must be done by a licensed person.
Where to verify licences and registrations in New Zealand
The main checks depend on the trade. In most cases, you can verify a person’s name, licence number, scope of work, and current status through an official register or regulator.
Electrical workers
Electrical work in NZ must be done by or under the supervision of an appropriately authorised person. The key place to check is the register of electrical workers through the national regulator.
Look for:
• full name
• registration or practising licence details
• current status
• whether the person is authorised for the work you need
If a person says they are “registered”, ask what that means for your specific job, because some work must be done by a licensed electrical worker, not just someone with general trade experience.
Plumbers, gasfitters and drainlayers
For plumbing, gasfitting, and drainlaying, check the official register for the person’s current licence status and classes of work.
Important points to confirm:
• they are licensed in the trade you need
• their licence is current and not suspended
• they are authorised for the specific type of work, such as gasfitting or backflow-related work
• they will issue the right documentation after completion where required
Gas work deserves extra care. If there is any uncertainty, do not proceed until you have confirmed the installer is licensed for gas work specifically.
Licensed Building Practitioners (LBPs)
LBPs are registered for building work that includes restricted building work, such as parts of new homes and some major alterations that affect the structure or weathertightness.
Check that the practitioner:
• is a current LBP
• has the right license class for the job
• can carry out the restricted building work involved
• will handle or contribute to the producer statement, records, or council documentation if needed
It is worth remembering that not every builder on a site needs to be an LBP, but restricted building work must be supervised and carried out according to the rules.
Other trades and specialist work
Some other trades do not have the same statutory licence structure, but you can still check credentials, memberships, and insurance. Examples include roofers, painters, tilers, plasterers, and many renovation specialists.
For these trades, ask for:
• references from recent NZ jobs
• evidence of public liability insurance
• proof of experience with similar work
• product or manufacturer training if relevant
How to check a tradesperson properly
A quick online search is not enough. Use a simple step-by-step process before you commit.
1. Ask for their full legal name and licence number
Get the exact name they use for licensing purposes, not just a trading name. If they provide a licence number, note it down and compare it with the relevant register.
2. Search the official register
Use the regulator’s public register for the trade. Confirm:
• the name matches
• the licence or registration is current
• the scope matches the work you need
• there are no restrictions that affect your job
3. Check the type of work they can legally do
This matters just as much as the licence itself. For example, a builder may be licensed for carpentry-related work but not necessarily for every specialist task. A gasfitter licence does not automatically cover electrical work, and vice versa.
4. Ask for evidence of insurance and business details
A qualified tradesperson should be able to give you their business name, invoice details, and insurance information. Public liability insurance is not the same as a licence, but it can protect you if there is accidental damage.
5. Confirm who will actually be on site
Sometimes the person you speak to is not the one doing the work. If a company sends subcontractors or employees, ask whether the person on site is individually licensed for the task.
6. Keep a written record
Save emails, quotes, screenshots of licence checks, and invoices. If there is a dispute later, clear records are very useful.
Red flags that should make you pause
If something feels off, stop and verify before paying a deposit or letting work begin.
Watch for these warning signs:
• reluctance to provide a licence number
• pressure to start immediately without paperwork
• a quote that is much lower than others without a clear reason
• vague answers about who will sign off the work
• claims like “I’ve been doing this for years, so I don’t need a licence”
• no invoice, no business address, or no clear contact details
In NZ, legitimate tradespeople are usually happy to have their qualifications checked. It is a standard part of professional work, not an insult.
What it may cost to verify or replace paperwork
Checking a public register is usually free. The costs come from the work itself, any formal inspection, or replacing documents if something was not issued properly.
Indicative NZ cost ranges:
• Official licence/register check: usually free
• Independent pre-purchase or technical inspection: about $300 to $1,000+
• Council-related inspection or documentation follow-up: often from $150 to $600+, depending on the job and region
• Replacement compliance paperwork or additional certified visits: commonly $100 to $500+
These are only general ranges. Complex jobs, regional differences, and urgent call-outs can push costs higher.
If the tradesperson is not properly qualified
If you discover a tradesperson is not licensed or registered for the work, do not let the job continue until you understand the risk.
You can:
• pause the work immediately
• ask for a properly qualified person to take over
• contact the relevant regulator if serious concerns remain
• notify your insurer if there has been damage or unsafe work
• speak to your local council if consented work may be affected
If the job is already completed, get advice quickly. The fix may involve testing, rework, or formal sign-off by a properly authorised professional.
A simple homeowner checklist
Use this before signing a quote or paying a deposit:
• get the tradesperson’s full name and licence number
• check the official register for the relevant trade
• confirm the licence is current
• make sure the licence type matches the exact work
• ask who will do the job on site
• request insurance details and a written quote
• keep all records and receipts
A few minutes of checking can prevent unsafe work, extra costs, and major headaches later. In New Zealand, the right licence matters as much as the right price.