What are the biggest warning signs of a dodgy tradie in NZ?

Key red flags include demanding large cash payments upfront, refusing to provide a written contract, being unable to show a licence or GST number, quoting a price that seems unrealistically low, and pressuring you to make an immediate decision. Always get at least three written quotes and check qualifications before committing.

How do I check if a tradie is properly licensed in New Zealand?

It depends on the trade. Electricians can be verified on the EWRB register (ewrb.govt.nz), plumbers and gasfitters on the PGDB register (pgdb.co.nz), and builders doing restricted building work on the LBP register (lbp.govt.nz). For other trades, ask for industry body membership and references you can contact directly.

Do I need a building consent, and can my tradie sort that out?

Many types of building work require a consent from your local council. While a tradie can apply on your behalf, the legal responsibility ultimately sits with you as the homeowner. Always confirm consent requirements directly with your council — do not rely solely on a tradie's advice. MBIE Building Performance (building.govt.nz) has useful guidance on what requires consent.

Is it safe to pay a tradie in cash?

Paying entirely in cash with no receipt or paper trail is risky. Legitimate tradespeople will invoice you and accept bank transfer or other traceable payment methods. A cash-only insistence can indicate the operator is not registered for GST, is not declaring income, or intends to disappear if problems arise. Always get a receipt for any payment made.

What should I do if a tradie does poor or incomplete work?

First, document everything with photos and written records. Raise the issue with the tradie in writing and give them a reasonable opportunity to fix it. If they refuse, contact the relevant licensing board for restricted trades, seek advice from Consumer NZ or Citizens Advice Bureau, and consider the Disputes Tribunal for financial claims. Do not make final payment until you are satisfied the work meets the agreed standard.

How many quotes should I get before hiring a tradie?

Getting at least three quotes is strongly recommended for any significant job. Multiple quotes help you understand the realistic market rate, spot unusually low bids that may signal cut corners, and give you a basis for comparison. Make sure each quote covers the same scope of work and specifies the materials to be used so you are comparing like with like.

Warning Signs of a Dodgy Tradie

Hiring the wrong tradie can cost you thousands of dollars, leave your home unsafe, and create legal headaches that drag on for years. New Zealand homeowners have strong consumer protections, but the best defence is knowing the warning signs of a dodgy operator before any work begins. This guide walks you through the red flags to watch for, how to properly vet a tradesperson, and what to do if things go wrong.

Red Flags Before You Even Hire

The warning signs often appear during the very first interaction. Be cautious if a tradie:

Knocks on your door uninvited offering to fix something they claim to have spotted — this is a common tactic used by rogue operators, particularly after storms.
Demands a large cash deposit upfront with no written contract. A reasonable deposit is normal for large jobs, but an insistence on cash only is a serious red flag.
Cannot provide a business name, GST number, or physical address. Legitimate tradespeople operate as registered businesses.
Pressures you to decide immediately, claiming the price is only available today. Reputable tradies give you time to compare quotes.
Offers a price that seems too good to be true. Extremely low quotes often mean cut-rate materials, unlicensed workers, or a plan to hit you with unexpected extras later.
Is vague about the scope of work and refuses to put details in writing before starting.

Red Flags During the Quoting Process

Always get multiple quotes from qualified tradespeople — at least three for any significant job. During this process, watch out for:

Quotes with no itemised breakdown of labour and materials.
Refusal to provide references from recent, local jobs.
Inability to show proof of current public liability insurance. If a tradie damages your property or injures someone, you need to know they are covered.
Vague timelines with no start or completion date discussed.
Pressure to skip a building consent when the work clearly requires one. Always confirm consent requirements with your local council — do not rely solely on a tradie's word. You can find guidance at MBIE Building Performance.

Checking Qualifications and Licensing

For many trades in New Zealand, carrying out certain work without the correct licence is not just unprofessional — it is illegal. Here is what to check:

Electrical Work

All electrical work beyond very minor work such as changing a lightbulb is restricted work that must be carried out by a registered electrician. Check your electrician's registration on the Electrical Workers Registration Board (EWRB) website.

Plumbing, Gasfitting, and Drainlaying

Sanitary plumbing, gasfitting, and drainlaying are restricted trades under the Plumbers, Gasfitters, and Drainlayers Act 2006. Verify your tradie's licence with the Plumbers Gasfitters & Drainlayers Board (PGDB).

Building Work

For restricted building work — which includes most structural, weathertight, and fire-safety work on houses — you must use a Licensed Building Practitioner (LBP). You can search the LBP register online to confirm a practitioner's licence class and status.

General Builders and Other Trades

For trades that do not have a statutory register, ask for:

Membership of a recognised industry body (e.g., Registered Master Builders, Certified Builders Association of NZ).
Evidence of relevant trade qualifications.
References you can actually call.

What a Legitimate Contract Should Include

Before any work starts, insist on a written contract. A proper agreement should cover:

Element	What to look for
Scope of work	Detailed description of exactly what will be done
Materials	Brands, grades, and quantities specified
Price	Fixed price or clear hourly rate, plus GST
Payment schedule	Tied to milestones, not arbitrary dates
Timeline	Estimated start and completion dates
Variations	Process for agreeing any changes in writing
Warranties	What is covered and for how long
Insurance	Confirmation of public liability cover

Never pay the full amount upfront. A common and reasonable structure is a deposit, progress payments tied to completed stages, and a final payment held back until the job is finished to your satisfaction.

Quality Materials and NZ Conditions

A dodgy tradie may cut costs by using substandard or inappropriate materials. New Zealand's climate varies enormously — from the high UV and humidity of Northland to the freeze-thaw cycles of the South Island high country and the salt-laden winds of coastal areas. Always check that materials specified are suited to your local conditions and comply with the NZ Building Code. Reputable suppliers like Resene, James Hardie, and PlaceMakers can advise on appropriate products for your region.

During the Job — Ongoing Warning Signs

Even after work begins, stay alert:

Unexplained absences or the job being left for long periods with no communication.
Substituting cheaper materials than those quoted without your written agreement.
Requesting additional large payments before milestones are reached.
Refusing to show you progress or explain what has been done.
No site tidiness or health and safety awareness — WorkSafe NZ sets clear obligations for safe worksites.

Planning Your Budget and Contingency

Plan your project budget carefully and always include a contingency allowance — typically 10–20% — for unexpected issues, particularly in older homes where hidden problems are common. A tradie who helps you understand potential risks upfront is a good sign; one who dismisses any possibility of complications is not.

When to Call a Professional

If you suspect you have already hired a dodgy tradie, act promptly:

Stop further payments until the issue is resolved.
Document everything — photographs, written communications, and a diary of events.
Contact the relevant licensing board if the work involves a restricted trade (EWRB, PGDB, or LBP).
Seek advice from Consumer NZ or Citizens Advice Bureau about your rights under the Consumer Guarantees Act and the Contract and Commercial Law Act.
Consider the Disputes Tribunal for unresolved financial disputes.

For any significant building, electrical, plumbing, or gas work, always hire a qualified, licensed professional. You can find vetted local tradespeople on tradedirectory.co.nz.