Introduction

A roof is one of the most important parts of any New Zealand home. It protects your family from rain, wind, sun, and cold – and it needs to withstand our often-tough weather conditions. Hiring the right roofer can mean the difference between a roof that lasts decades and one that causes ongoing headaches.

Roofers in New Zealand handle a wide range of jobs, from minor repairs and gutter replacements to full re-roofs on existing homes and installing roofs on new builds. You might call a roofer if you notice leaks, damaged or missing tiles, corroded metal, sagging areas, or if your roof is simply getting old. A well-maintained roof can easily add value to your property and save you from expensive interior damage later on.

Because roofing involves both safety risks and technical skill, it’s essential to find a qualified, trustworthy professional. This guide explains what you need to know before hiring a roofer anywhere in New Zealand.

Qualifications and certifications for roofers in NZ

Roofing is considered a restricted building work under the Building Act 2004 when it involves the primary structure of the house. This means that anyone carrying out roofing work that is critical to the weathertightness or structural integrity of a building must be a Licensed Building Practitioner (LBP) with the appropriate licence class – Roofing.

The LBP scheme is run by the Ministry of Business, Innovation and Employment (MBIE). There are several licence classes, but the one most relevant to roofers is Licensed Building Practitioner – Roofing. Roofers can also hold a Design or Carpentry licence if their work involves roof framing, but for the roofing cover itself, the Roofing class is key.

To get an LBP Roofing licence, tradespeople must prove their experience, pass assessments, and meet ongoing competency requirements. You can check a roofer’s LBP status for free on the LBP register at the MBIE website. This is a solid way to verify they are qualified to do the work properly.

Beyond the LBP requirement, many roofers belong to industry bodies like the New Zealand Roofing Association (NZRA). Membership in the NZRA often indicates a commitment to quality, ongoing training, and a code of ethics. Some roofers also hold qualifications through the New Zealand Certificate in Roofing (Level 4) offered by industry training organisations such as the Building and Construction Industry Training Organisation (BCITO).

It’s also important to ask about health and safety practices. Roofers must comply with the Health and Safety at Work Act 2015, including working at heights safely. A reputable roofer will have a site-specific safety plan and appropriate gear.

How to choose and vet a roofer

Choosing a roofer isn’t just about finding someone who can hammer a nail. You need to check several things to ensure the job is done right and will stand up to New Zealand’s climate.

Start by asking for recommendations from friends, neighbours, or local trade suppliers. You can also use comparison websites like ValueHub to gather multiple quotes. Always ask for at least three written quotes for any significant roofing job.

Before you hire, verify the following:

  • Licence: Check the roofer’s LBP number on the MBIE register. If they say they don’t need one because the work is minor, ask why. For re-roofs and new roofs, a licensed professional is almost always required.
  • Insurance: Ask to see a current certificate of public liability insurance. This protects you if someone is injured on your property or if the work damages your home. Also ask about their workmanship warranty and any manufacturer warranties on materials.
  • References: Request contact details of recent clients. A quick call can reveal how the roofer handled the job, their communication, and whether any issues arose later.
  • Written contract: Get everything in writing – scope of work, materials to be used, timeline, payment schedule, and warranty details. Never rely on a handshake for a job worth thousands of dollars.
  • Site inspection: A good roofer will want to visit your property before giving a quote. They should check roof pitch, access, existing condition, and any potential hazards. A quote over the phone or via photos alone is a red flag.

Questions to ask during the vetting process:

  • How long have you been in business in New Zealand?
  • Do you have experience with my roof type (metal, concrete tile, slate, shingles)?
  • What materials do you recommend and why?
  • Will you provide a guarantee on workmanship, and for how long?
  • How do you handle unexpected issues, like rotten timber discovered during the job?
  • Who will be responsible for obtaining building consents (if required)?

Take notes and compare responses. Price is important, but it shouldn’t be the only factor.

Typical costs and pricing in NZ

Roofing costs in New Zealand vary significantly depending on the size and pitch of your roof, the materials chosen, access difficulty, and your location. In general, you can expect to pay per square metre, with costs rising for more complex work.

Metal roofing (often profiled steel or Colorsteel) is a popular choice in NZ. Supply and installation for a standard metal roof typically ranges from about $30 to $60 per square metre. For long-run metal roofing, the cost is usually at the lower end, while for more intricate designs or higher-quality coatings, the price increases.

Concrete or clay tiles are heavier and require stronger framing, so installation costs are higher – roughly $40 to $80 per square metre. For premium tiles or steep pitches, costs can go beyond that.

Slate or shingle roofs are less common in New Zealand but can be $80 to $150 per square metre or more due to the specialised labour and materials.

Additional costs you might encounter:

  • Scaffolding and safety gear: Expect $1,500–$3,000 or more for a full scaffold, especially for two-storey homes.
  • Roof waste removal: Old roofing material must be taken to a landfill or recycling centre. Disposal fees can be $100–$500 depending on volume.
  • Underlay replacement: If the old underlay is damaged, adding new underlay can cost $10–$20 per square metre.
  • Repairs to roof framing: If the roofer discovers rot or damage, repairs will be extra.
  • Consent and engineering fees: For major re-roofs or structural changes, you may need a building consent from your local council, costing several hundred dollars.

Always ask for a detailed breakdown in your quote. Some roofers charge a flat rate for the whole job, while others itemise labour and materials. Compare like with like when looking at multiple quotes.

Keep in mind that prices in major cities like Auckland, Wellington, and Christchurch tend to be higher than in smaller towns due to labour and material costs. Supply chain issues can also affect material prices, so ask if the quote is valid for a specific period.

Red flags and what to avoid

Not all roofers are created equal. Here are warning signs that should make you think twice before hiring.

  • No written quote or contract: If someone gives you a verbal price and expects cash on the day, walk away. A professional roofer will provide a written quote and contract.
  • Pressure to make a quick decision: Roofers who say “this deal is only good today” or “I have a cancellation, so I can do it cheap” are often trying to rush you into a poor decision.
  • Deposit demands of more than 10–20%: Large upfront payments are a major red flag. Reputable roofers typically ask for a small deposit (if any) and balance on completion.
  • Lack of insurance or LBP licence: Do not hire anyone who cannot produce proof of public liability insurance or a current LBP licence if required. You could be left liable for accidents or shoddy work.
  • No local address or references: Be wary of roofers who operate from a mobile number only or refuse to give references. They may not be established in the area.
  • Unprofessional appearance or communication: If the roofer shows up late without notice, uses aggressive sales tactics, or cannot explain the work clearly, it’s often a sign of broader issues.
  • Extremely low quote: If one quote is far cheaper than all others, there is almost always a catch – whether it’s poor materials, no insurance, or a lack of experience. Don’t gamble your roof on a bargain.
  • Asking you to sign over your insurance payment: Some less scrupulous operators propose to do the work for the amount of your insurance claim, without properly scoping the job. This can lead to incomplete work.

If you encounter any of these red flags, move on to the next tradesperson. Your roof is too important to trust to someone who seems unreliable.

Tips for getting the best results

With the right roofer and a bit of preparation, you can ensure the job goes smoothly and your roof performs well for years.

  • Plan ahead: Roofing can be disruptive – expect noise, dust, and limited access to parts of your property. Let your neighbours know if work is happening. Move cars and outdoor furniture away from the work area.
  • Understand the materials: Ask your roofer why they recommend a particular roofing material. In New Zealand, Colorsteel is a common metal choice, but you might also consider tile, slate, or rubber. Think about your local climate, the pitch of your roof, and your budget.
  • Check consent requirements: Small repairs may not need a building consent, but a full re-roof or any structural change almost always does. Your roofer should help you with this. If they say you don’t need one, check with your local council to be sure.
  • Agree on a payment schedule: A typical arrangement is a small deposit to secure the job (10–15%), progress payments if the job is large, and the final payment on completion and satisfaction. Never pay the full amount upfront.
  • Get a warranty in writing: Both the roofing materials and the workmanship should come with a warranty. For metal roofs, manufacturers often offer warranties of 15–25 years. Workmanship warranties from the roofer are usually for 5–10 years. Read the fine print.
  • Keep a record: Save all documents – quotes, contracts, insurance certificates, receipts, warranties, and photos of the work in progress. This can protect you if a dispute arises.
  • Inspect after completion: Before making the final payment, walk around your property and look at the roof from ground level. Check that gutters and spouting are clear, flashing is properly sealed, and there are no visible gaps or damage. If you can safely access the roof (or with your roofer’s help), examine the work more closely.
  • Plan for maintenance: Even the best roof needs occasional care. Ask your roofer for advice on how often to clear gutters, check for loose tiles, and re-apply protective coatings if applicable. A small annual inspection can catch pr