Gas Fitters in NZ — A Guide to Licenced Gas Work

Gas Fitters in New Zealand — A Guide to Licensed Gas Work

Whether you're installing a new gas cooktop, upgrading a hot water cylinder, or converting a property from electric to gas, you’ll need a licensed gas fitter in New Zealand. Gas work is tightly regulated for safety reasons, and using an unqualified person can put your home and insurance cover at risk.

This guide explains what gas fitters do, how to check their credentials, what to expect in terms of costs, and how to ensure your gas work is compliant. We’ll also cover the pros and cons of hiring a licenced gas fitter versus attempting DIY.

This is general information only and does not constitute financial advice. Always do your own research before making financial decisions.

What is a Licensed Gas Fitter?

A licensed gas fitter is a tradesperson authorised by the Plumbers, Gasfitters, and Drainlayers Board (PGDB) to work on gas systems. In New Zealand, all gas fitting work must be carried out or supervised by someone holding an appropriate licence.

Licences are divided into classes:

  • Gas Fitting (Authorised) – can carry out all gas work
  • Gas Fitting (Limited) – can only work on specific appliances (e.g., cookers, hot water cylinders)
  • Gas Fitting (Service) – can service and repair existing gas appliances
  • Gas Fitting (Trainee) – must work under supervision

You can check a gas fitter’s licence online at the PGDB website. Always ask for their licence number before any work begins.

Pros and Cons of Hiring a Licensed Gas Fitter

Pros Cons
Work is compliant with NZ regulations Costs more than DIY (but DIY is illegal for gas work)
Insurance cover is maintained May need to wait for availability (especially in peak seasons)
Safety risks are minimised Some gas fitters charge call-out fees
Warranty on work provided Limited scope — some fitters specialise in residential only
Certificate of Compliance issued May need separate gas inspection for new installations

Key Features of Gas Fitting Work

Licensed gas fitters handle a range of tasks, including:

  • Installing gas pipes and fittings
  • Connecting gas appliances (cooktops, ovens, hot water cylinders, heaters)
  • Converting appliances from LPG to natural gas (or vice versa)
  • Repairing gas leaks and servicing gas systems
  • Issuing a Certificate of Compliance for all completed work

Without a Certificate of Compliance, your insurance may not cover gas-related damage, and you could face fines from your local council or energy supplier.

Typical Costs for Gas Fitting in NZ

Gas fitting costs vary depending on your location, the complexity of the job, and the fitter’s experience. Below are typical price ranges (check with your provider for exact quotes):

Service Typical Cost Range (NZ$)
Call-out fee (first hour) $80 – $150
Install a gas cooktop $200 – $400
Install a gas hot water cylinder $500 – $1,200
Gas leak repair $150 – $350
Gas pipe installation (per metre) $30 – $60
Certificate of Compliance Included in job cost (typically $30–$50 extra)

Always request a written quote before work starts. Some fitters charge extra for travel or after-hours work.

Who Needs a Gas Fitter?

You’ll need a licensed gas fitter if you:

  • Are building a new home or renovating a kitchen
  • Want to switch from electric to gas appliances
  • Suspect a gas leak or smell gas
  • Need a gas appliance serviced or repaired
  • Are buying or selling a property with gas — a compliance check is often required

If you’re a landlord, you are legally responsible for ensuring gas appliances in your rental property are safe and serviced every two years. A gas fitter can issue a Gas Safety Certificate for this purpose.

Step-by-Step Guide to Hiring a Gas Fitter

Step 1: Identify Your Gas Work Needs

Write down exactly what you need done — installation, repair, or servicing. If you’re not sure, describe the appliance and the issue. This helps you get accurate quotes.

Step 2: Find Licensed Gas Fitters

Search online for gas fitters in your region. Look for reviews on Google or trade websites. Ask friends, family, or your local hardware store for recommendations. You can also use the PGDB’s online register to find licenced tradespeople near you.

Step 3: Check Their Licence

Before inviting anyone to quote, verify their licence on the PGDB website. You’ll need their full name or licence number. Make sure the licence class matches the work you need.

Step 4: Get Multiple Quotes

Contact at least three gas fitters. Provide the same details to each so you can compare apples with apples. Ask for:

  • A fixed price (not an estimate)
  • Expected timeline
  • Whether a Certificate of Compliance is included
  • Warranty on parts and labour

Step 5: Ask About Insurance

Reputable gas fitters carry public liability insurance. Ask for proof. This protects you if something goes wrong during the job.

Step 6: Review the Quote and Contract

Read the quote carefully. It should list all work, materials, and fees. Don’t sign until you’re happy. If the job is large, get a written contract.

Step 7: Supervise the Work (Optional)

You don’t need to hover, but it’s wise to be present when the fitter arrives. Confirm the scope of work and ask questions if anything seems unclear.

Step 8: Get the Certificate of Compliance

After the work is complete, the gas fitter must issue a Certificate of Compliance. Keep this document — it’s proof the work meets NZ standards. You’ll need it for insurance claims and when selling the property.

Tips for a Smooth Gas Fitting Experience

  • Book early — gas fitters can be busy, especially in summer when hot water cylinders are in demand.
  • Check for gas supply — if you’re on LPG, confirm you have enough gas in the bottle before installation.
  • Know your gas type — LPG and natural gas require different fittings. Tell your fitter which you use.
  • Ask about permits — some jobs (like new gas lines) may require council consent. Your fitter should handle this.
  • Never DIY gas work — it’s illegal and dangerous. Even turning off a gas valve should be left to a professional.

Verdict

Hiring a licensed gas fitter is non-negotiable for any gas work in New Zealand. It ensures your home is safe, your insurance is valid, and the job meets legal standards. While costs can add up — especially for larger installations — of mind is worth it.

For most homeowners, the key is to plan ahead, get multiple quotes, and always verify the fitter’s credentials. Gas work is not an area to cut corners. A small upfront investment in a professional can save you thousands in repairs or liability later.

If you’re unsure about your gas system, start by checking your current appliances for compliance. A gas fitter can also do a safety check for around $150–$250 — a small price for knowing your home is safe.