If you are hiring a plumber, electrician, builder, roofer, painter, or other tradesperson in New Zealand, insurance should be part of the conversation before the work starts. While not every trade is legally required to carry the same cover, the right insurance can protect both the tradesperson and the homeowner if something goes wrong.
Why insurance matters for NZ tradespeople
Trades work can involve ladders, power tools, vehicles, electrical systems, water, gas, excavation, heavy materials, and work close to your home’s structure. Even careful professionals can cause accidental damage or face an injury on site. Insurance is there to reduce the financial fallout when the unexpected happens.
For homeowners, the main benefit is peace of mind. If a contractor accidentally breaks a window, floods a room, or a third party is injured while the job is underway, insurance may help cover the cost rather than leaving you to chase repairs or compensation yourself.
For tradespeople, insurance can also be the difference between one bad day and a business-ending bill. Many reputable businesses treat it as a basic operating cost, much like tools, vehicles, or licences.
Common types of insurance tradespeople may hold
Public liability insurance
This is one of the most important policies for many trades. Public liability insurance is designed to cover accidental injury to other people, or accidental damage to someone else’s property, arising from the tradesperson’s work.
Typical examples include:
• A drill punctures a hidden pipe and causes water damage
• A scaffold is set up incorrectly and damages a neighbour’s fence
• A tool slips and cracks a client’s tile or benchtop
For homeowners, public liability is often the first policy to ask about because it helps address property damage and third-party injury claims.
Contract works insurance
Also called construction insurance in some contexts, contract works insurance can cover the job itself while work is underway. This may include loss or damage to materials, partially completed work, or the project site during the build or renovation.
This cover is especially relevant for builders, renovators, and larger fit-outs. It may protect against events like fire, theft, storm damage, or accidental damage during construction.
Tool and equipment insurance
Many tradespeople rely on expensive tools, testing gear, and machinery. Tool insurance can help replace or repair stolen, lost, or damaged tools.
This does not directly protect the homeowner, but it matters because a tradesperson who has been hit by theft or damage may be able to get back on the job faster. It also shows the business is serious about managing risk.
Vehicle insurance and commercial motor cover
Many tradies use utes, vans, trailers, and site vehicles to carry tools and materials. A standard private vehicle policy may not be enough if the vehicle is used for business purposes.
Commercial motor insurance can help cover damage, theft, or accident-related costs linked to work vehicles. If the vehicle is towing equipment or carrying materials, it is worth checking the policy details carefully.
Professional indemnity insurance
This is more common for design, consulting, and specialised trades work where advice, specifications, or plans are involved. It may cover losses caused by an error, omission, or negligent advice.
Examples can include:
• Incorrect measurements leading to costly rework
• A design detail that creates compliance issues
• Advice that results in the wrong product being installed
If a trade business also provides planning or design services, professional indemnity can be important.
Workers’ compensation and personal injury cover
New Zealand’s accident compensation system is different from many countries. ACC generally covers personal injury regardless of fault, but that does not remove all business risk. Tradespeople may also carry income protection, sickness cover, or other personal policies to protect their earnings if they cannot work after an injury.
If the business employs staff, the owner should also be clear about workplace safety responsibilities and how injuries are managed.
What homeowners should ask before work begins
You do not need to interrogate every contractor like an insurer, but it is reasonable to ask a few direct questions before agreeing to a quote or signing a contract.
Questions to ask
• Do you have public liability insurance?
• Are you covered for the type of work you are doing on my property?
• Do you carry contract works insurance for renovation or build projects?
• Are your tools and vehicles insured?
• If you use subcontractors, are they insured too?
• Can you provide a certificate of currency or proof of insurance if needed?
• Are there any exclusions I should know about?
The key point is not just whether they say “yes”, but whether the cover matches the job. A painter’s insurance may not be suitable for a full bathroom renovation, and a small repair job may not need the same level of cover as a major project.
What documents to check
If the job is significant, ask to see evidence of cover. You may be shown a certificate of currency, policy schedule, or confirmation from their insurer or broker. Check that the business name matches the contractor you are hiring and that the policy is current.
It is also sensible to confirm the scope of work in writing, including who is responsible for protecting floors, moving furniture, site security, and any temporary protection needed around finished surfaces.
Why this matters to homeowners
Insurance is not a substitute for good workmanship, but it is an important back-up if something goes wrong. In practice, it can affect how quickly a claim is resolved, who pays for damage, and whether the project can continue without major delay.
For homeowners, insured tradespeople may reduce the risk of:
• paying out of pocket for accidental damage caused by the contractor
• disputes over who is responsible when something breaks
• delays while a contractor tries to find money to fix a problem
• difficult conversations if a neighbour’s property is affected
There is also a trust factor. A contractor who has taken the time to arrange proper insurance is often more likely to have systems for safety, documentation, and risk management.
Is a tradesperson legally required to be insured in NZ?
In New Zealand, insurance requirements depend on the trade, the type of work, and any contractual terms. Some work sectors, clients, or site rules may require proof of insurance before work starts. For example, larger commercial sites, property managers, councils, and main contractors often insist on minimum insurance levels.
For residential work, the law may not always force every contractor to hold every type of insurance, but that does not mean it is optional in practical terms. Reputable tradespeople often carry public liability insurance as a baseline, and many homeowners now expect it.
If the work involves regulated activity, such as electrical or plumbing work, the contractor should also be appropriately licensed or authorised for the job. Insurance does not replace the need for the right qualifications or registration.
Cost guide: what insurance may cost a trades business
Insurance costs vary widely depending on trade type, turnover, claim history, project size, location, and the amount of cover required. These are only indicative ranges for NZ businesses:
• Public liability insurance: around $400 to $2,500+ per year for many small to medium trade businesses
• Tool insurance: around $150 to $1,500+ per year depending on tool value and theft risk
• Commercial vehicle insurance: often around $800 to $3,000+ per vehicle per year
• Contract works insurance: often from a few hundred dollars for smaller jobs to several thousand dollars for larger projects
• Professional indemnity insurance: often around $500 to $5,000+ per year depending on risk and cover limits
These are broad guide figures only. A sole trader doing maintenance work will usually pay less than a builder running multiple renovations or a firm handling larger residential projects.
Practical takeaway for hiring in NZ
A good rule of thumb is simple: ask about insurance early, and do not assume every contractor carries the same cover. The right policies can protect your home, your budget, and the job timeline if damage or injury occurs.
For smaller jobs, a quick verbal check may be enough. For larger renovations, extensions, roofing, or work involving expensive finishes, get proof in writing and keep it with your contract and quote.
Insurance will not tell you whether a tradesperson is excellent, but it does tell you they are taking the risks of the job seriously.