Why insurance matters when hiring a concreter
Concrete work can go wrong in expensive ways. A concrete truck can crack a driveway edge, a pump hose can damage windows or landscaping, or a slab can be poured incorrectly and need to be cut out and replaced. On a residential site, those costs can quickly run into the thousands.
For New Zealand homeowners, the key question is not just whether a concreter is experienced, but whether they have the right insurance in place to cover mistakes, accidents and damage while they are on your property.
Insurance does not replace good workmanship, and it will not protect you from every dispute. But it is one of the simplest ways to reduce your financial risk when hiring a tradesperson.
The main types of insurance a concreter should carry
A concreter’s insurance needs can vary depending on the size of the job, whether they use subcontractors, and what machinery they operate. Still, there are a few policies you should expect to ask about.
| Insurance type | What it covers | Why it matters to you |
|---|---|---|
| Public liability insurance | Injury to other people and accidental damage to third-party property | Helps pay if the concreter damages your house, fence, windows, driveway, or a visitor is hurt |
| Contract works insurance | Damage to the work in progress, materials and site during the job | Can help if freshly poured concrete is damaged by weather, theft, vandalism or other insured events |
| Tool and plant cover | Theft or damage to tools, mixers, small machinery and equipment | Helps the concreter keep working without cutting corners after a loss |
| Vehicle insurance | Damage caused by work vehicles and sometimes equipment in transit | Relevant if trucks, trailers or concrete pumps are used on your property |
| Professional indemnity insurance | Losses arising from design or advice errors | Less common for basic concrete laying, but useful if the concreter is giving design, drainage or structural advice |
| ACC cover | Injury cover for workers, through the Accident Compensation scheme | Helps with personal injury claims, but it does not replace public liability insurance |
1) Public liability insurance
This is the big one. Public liability insurance is designed to cover accidental damage to other people’s property and injury to third parties arising from the business’s work.
For a homeowner, that means it may help if:
- a site hose cracks a window or garage door
- concrete splashes on a neighbour’s car or boundary fence
- a delivery truck damages your driveway or retaining wall
- a visitor, courier or neighbour is injured because of the worksite
Public liability is especially important in suburban New Zealand settings where driveways, shared accessways, fences and landscaping are close to the work area.
2) Contract works insurance
Contract works insurance covers the job while it is underway. This is particularly relevant for concrete work because the early stages of a pour are vulnerable to weather, site damage and theft of materials.
It can be useful if:
- a freshly poured slab is damaged by heavy rain, flooding or wind-blown debris
- formwork fails and the pour has to be re-done
- materials are stolen from site before installation
- vandalism or accidental damage affects the work in progress
Not every concreter carries the same level of contract works cover, and some policies only apply to certain contract values or project types. Ask specifically whether the cover applies to your job.
3) Tool, equipment and plant insurance
Concrete jobs often rely on compactors, saws, mixers, levels, hand tools and sometimes larger plant. While this cover mainly protects the business, it matters to homeowners because a business with uninsured equipment losses may delay your project or try to recoup costs elsewhere.
If a concreter uses hired machinery or a pump subcontractor, ask how that equipment is insured and who is responsible if something is damaged.
4) Vehicle and transit cover
If the concreter is bringing a truck, trailer, concrete pump or other vehicle onto your property, it is worth asking whether their business vehicles are properly insured.
This does not mean they are liable for every parking scrape on your section, but it does show they are running a properly managed operation. It can also matter if materials or machinery are damaged while being transported to or from your site.
5) Professional indemnity insurance
This is more common for designers, engineers, surveyors and some project managers, but it can also be relevant if your concreter is advising on design details, drainage falls, retaining interfaces or structural elements.
If they are doing more than straightforward placement and finishing, ask whether they hold professional indemnity cover or work alongside a suitably insured designer or engineer.
6) ACC is not the same as liability cover
New Zealand’s ACC scheme covers personal injury, but it does not pay for:
- damage to your property
- repair of defective work
- delay costs
- disputes over workmanship or scope
That is why you should not assume a tradesperson is adequately covered just because they are paying ACC levies.
How insurance protects the homeowner in real life
Insurance is not just a box-ticking exercise. It can make a real difference if something goes wrong.
For example:
- Driveway damage: A concrete truck cracks your existing pavers or stamped concrete at the entrance. Public liability cover may help pay for repairs.
- Boundary damage: A pump hose or excavator knocks over a fence or damages a neighbour’s retaining wall. Liability cover can reduce the chance of a personal bill.
- Wet weather delays: A heavy rain event damages a newly poured slab or base. Contract works cover may help with the cost of remedial work, depending on the policy.
- Injury on site: A passer-by is injured by site activity or an unsecured hazard. Liability cover may assist with the claim process.
Without cover, you may end up relying on the contractor’s business assets, which may be limited, or spending time and money chasing repairs yourself.
Insurance does not replace good due diligence
Even a well-insured concreter can still deliver poor workmanship. Insurance covers certain losses; it does not guarantee quality.
You still need to check:
- Experience with your type of job: driveway, patio, path, slab, exposed aggregate, retaining edge, shed floor or commercial apron
- References and photos: ask for recent local work, not just polished marketing images
- Written scope: what is included, what is excluded, and who handles prep, concrete supply, reinforcement, finishing and sealing
- Drainage and council requirements: some concrete projects may trigger local council rules, building consent requirements, or site-specific conditions, especially where retaining walls, structural slabs, access strips or drainage are involved
- Who is doing the work: employees or subcontractors, and whether subcontractors also carry their own cover
If the job involves drainage work, plumbing, gasfitting or drainlaying, remember those are restricted classes of work and must be done by appropriately authorised people. Electrical work is also regulated. A concreter should not be expected to do those trades unless properly licensed or working with the right specialist.
What to ask before you hire
Ask the concreter directly for details before you accept a quote.
Useful questions include:
- Do you have current public liability insurance?
- What amount are you covered for?
- Does your policy cover residential concreting jobs like mine?
- Do you carry contract works insurance for jobs in progress?
- Are your tools, plant and business vehicles insured?
- Do you use subcontractors, and are they insured too?
- Can you provide a certificate of currency?
- Is there anything excluded from your cover?
A professional concreter should be comfortable answering these questions. If they get defensive, vague or irritated, that is a warning sign.
How to confirm their cover is genuine
Don’t just take a verbal assurance. Confirm the policy details in writing.
Ask for a certificate of currency
A certificate of currency is a standard document from the insurer or broker confirming that the policy is currently active. It should show:
- the insured business name
- policy type
- policy number
- expiry date
- the level of cover or limit of indemnity
Match the paperwork to the quote
Check that the name on the insurance certificate matches the name on the quote, invoice or company registration details. If the quote is from a sole trader trading under a different name, ask for clarification.
Verify the expiry date
Make sure the policy is current for the full period of the job, not just on the day you sign the quote.
Check the cover type, not just the existence of insurance
A cheap policy with a very low limit may not be enough for a serious claim. For residential concreting, ask what the liability limit is and whether there are exclusions that matter to your job.
If in doubt, phone the insurer or broker
You can ask the tradesperson for permission to confirm the cover directly with their insurer or broker. Reputable operators will usually be fine with this.
What level of cover is reasonable?
There is no single legal minimum for all concreters in New Zealand, but the level of cover should be proportionate to the risk and the size of the job.
For a simple small patio, one level of cover may be enough. For a large driveway, earthworks, retaining interfaces or high-value property, you should expect stronger cover.
As a homeowner, focus less on finding the cheapest quote and more on whether the business can realistically absorb the cost of a mistake. If a concrete job is going to affect access, landscaping, neighbouring property or other structures, the potential loss can be much higher than the price difference between quotes.
Signs a concreter may be underinsured
Be cautious if the concreter:
- refuses to provide a certificate of currency
- says they “don’t need insurance” because they have never had a claim
- offers only cash prices and no written quote
- cannot clearly explain who is responsible for damage
- uses subcontractors but cannot confirm their cover
- wants you to pay a large deposit before any paperwork is provided
None of these are proof of a problem, but together they suggest poor business practice.
Other checks that matter in New Zealand
Insurance is only one part of hiring safely and legally.
Before work begins, also check:
- Council consent requirements: Some concrete-related work may be part of a larger project that needs building consent or resource consent, especially where structural elements, retaining walls, drainage changes or site works are involved
- Health and safety: On bigger jobs, ask how the site will be managed, especially if there are excavations, powered tools, vehicle movements or open edges
- Concrete timing and weather planning: New Zealand weather can change quickly, and winter or shoulder-season pours may need extra care for curing, rain protection and scheduling
- Access and damage protection: Clarify how your driveway, lawns, paths, fences and existing structures will be protected during the work
The bottom line
Yes — your concreter should ideally be insured. At a minimum, look for current public liability insurance, and ask whether they also carry contract works, tools and vehicle cover. Those policies can protect you if there is accidental damage, an injury on site, or a problem with the work in progress.
The safest approach is simple: get multiple written quotes, ask for a certificate of currency, check the cover matches the job, and choose a concreter who can clearly explain their insurance and process. It is one of the easiest ways to reduce the risk of a costly surprise.
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