Should Your Arborist Be Insured? What NZ Homeowners Need to Know

Why insurance matters when hiring an arborist

Tree work can be risky. Arborists commonly work at height, use chainsaws and chippers, and remove heavy limbs near roofs, fences, driveways, power lines and neighbouring properties. Even careful, experienced contractors can have accidents.

For homeowners, the main issue is simple: if something goes wrong, who pays?

A properly insured arborist helps protect you from:

• damage to your home, garage, fence, vehicles or landscaping
• injury to visitors, neighbours or contractors on site
• claims if the arborist’s work causes loss to someone else
• financial disputes if the job is delayed, damaged or incomplete because of an incident

Insurance is not a nice-to-have. For most tree work around a typical NZ home, it should be considered a basic hiring requirement.

The main types of insurance an arborist should carry

Not every arborist will have the same cover, but these are the policies worth asking about.

1. Public liability insurance

This is the most important policy to confirm.

Public liability insurance generally covers accidental injury to other people and accidental damage to someone else’s property arising from the arborist’s business activities.

Examples relevant to homeowners include:

• a branch drops onto your neighbour’s pergola
• a chipper throws debris and damages a window
• a pedestrian is injured by falling material near the boundary
• the arborist’s equipment damages your paving, retaining wall or lawn irrigation

A common coverage amount in New Zealand is $1 million, $2 million, $5 million or more. For residential tree work, many homeowners prefer a contractor with at least $2 million or $5 million cover, especially for larger trees, tight access or work near neighbouring property. The right amount depends on the scale and risk of the job.

2. Professional indemnity insurance

Not every arborist will need this, but it is valuable if they do more than hands-on cutting.

Professional indemnity insurance covers certain losses caused by negligent advice, reports or plans. For example:

• a tree risk assessment is carried out incorrectly
• a report used for a council application contains an error
• the arborist gives advice about tree retention, pruning or removal that later proves faulty

If you’re engaging an arborist for a simple trim, this may be less relevant. If you need a written assessment for a subdivision, consent process or body corporate issue, it becomes more important.

3. Contract works, tools and equipment cover

Tree work relies on specialised gear: chainsaws, ropes, lowering devices, chippers, stump grinders and sometimes elevated work platforms.

This type of cover can help if equipment is damaged, stolen or destroyed. While this mainly protects the business, it also protects you by reducing the chance of delays or the job being abandoned after an incident.

4. Employers’ liability and worker injury cover

Arboriculture is physically demanding and one of the more dangerous trades. If the contractor has staff, ask how they manage workplace injury cover and safety. New Zealand’s ACC system covers personal injury, but businesses still need to manage their own legal and financial exposure.

You do not need to be an expert in employment cover. The practical point is to hire a contractor who takes health and safety seriously and can show they have systems in place.

What insurance does — and does not — protect the homeowner from?

Insurance helps, but it is not a substitute for good workmanship or clear contracts.

Insurance can help with:

• accidental property damage
• third-party injury claims
• costs related to the contractor’s own equipment issues
• some professional advice errors, if professional indemnity applies

Insurance usually does not cover:

• poor-quality work that needs to be redone because it was simply done badly
• pre-existing tree defects or root damage the arborist didn’t cause
• damage the homeowner knew about and didn’t disclose
• deliberate acts or clearly unsafe instructions from the homeowner
• disputes over scope, pricing or timing unless they lead to a covered claim

That is why you should always get a written quote and a clear scope before the work starts.

How to check an arborist’s insurance before you hire them

A genuine contractor should be comfortable confirming their cover. If they are reluctant, treat that as a warning sign.

Ask for:

• the name of the insurer
• the policy type
• the amount of cover
• the expiry date
• the policy schedule or certificate of currency

A certificate of currency is the quickest way to confirm that cover is current. It should show the insured business name exactly as it appears on the quote or invoice.

What to look for on the certificate

Check that:

• the business name matches the contractor you’re hiring
• the policy is current for the date of work
• public liability cover amount is stated clearly
• any exclusions are not obvious red flags for tree work
• subcontractors are covered, if they will be used

If the arborist is part of a larger company, make sure the branch or trading name you’re dealing with is actually included.

Good questions to ask

You do not need to sound suspicious. Just ask practical questions such as:

• “Do you carry public liability insurance for tree work?”
• “Can you send me a certificate of currency before we book?”
• “What level of cover do you have?”
• “Does your cover include work near buildings and neighbouring properties?”
• “Will any subcontractors be covered under your policy?”

A professional arborist should answer clearly and without fuss.

Other credentials that matter as much as insurance

Insurance is essential, but it is not the only thing to check.

Look for relevant experience and qualifications

Arborists in New Zealand often have training through industry providers or a national qualification pathway. Ask about:

• qualifications in arboriculture or amenity tree work
• years of experience with the type of tree you have
• experience with large trees, confined access, or storm-damaged trees
• whether they are members of a recognised industry body, if applicable

Check health and safety practices

A contractor should be able to explain how they manage:

• exclusion zones around the work area
• traffic or pedestrian control if needed
• safe rigging and lowering of limbs
• chainsaw and chipper safety
• protection of gardens, lawns, roofs and hard surfaces
• what happens if they find hidden rot, dead wood or a compromised tree structure

Ask about local conditions and permits

Depending on where you live, tree work may be affected by local rules, tree protection overlays, district plans, or a need for council approval. If a tree is protected, near a boundary, in a notable tree area, or part of a larger development, the arborist should flag that early.

Also remember that tree work can interact with other regulated trades or services on site. If pruning or removal is near power lines, the contractor may need to follow extra requirements and work safely around electricity infrastructure. If the job affects structures, retaining walls or retaining soil, building consent issues may also arise. For anything involving excavation near buried services, check locations first.

Red flags when an arborist talks about insurance

Be cautious if the contractor:

• says insurance is “not necessary”
• won’t provide a certificate of currency
• gives vague answers about coverage limits
• only offers cash with no paperwork
• refuses to name their insurer or policy type
• says the homeowner’s insurance will “just sort it out”

Your house insurance may help in some situations, but that is not a reason to skip checking the contractor’s cover. If the arborist causes damage, your insurer may still ask who was responsible and may seek recovery from the contractor.

How homeowner insurance fits in

It is worth notifying your own insurer before major tree work if there is any chance of significant risk, such as removing a large tree close to the house, shed, retaining wall or boundary.

You should also:

• photograph the site before work begins
• keep the quote, contract and insurance details
• note any pre-existing damage or cracks
• confirm what areas the arborist is responsible for protecting

If damage happens, good records make the claims process much easier.

What a good hiring process looks like

To reduce risk, use a simple checklist:

1. Get at least two or three written quotes.
2. Ask for the arborist’s insurance certificate.
3. Check the business name, expiry date and cover amount.
4. Confirm the scope of work in writing.
5. Ask who will be on site and whether subcontractors will be used.
6. Clarify whether waste removal, stump grinding and site clean-up are included.
7. Confirm any council, neighbour or consent issues before work starts.

If the cheapest quote does not include insurance, safety systems or proper site protection, it may not be the best value.

The bottom line for NZ homeowners

Yes — your arborist should be insured.

At minimum, look for public liability insurance, and ask whether they also carry professional indemnity, equipment cover and appropriate worker protection. Insurance helps protect you if a tree job damages property or injures someone, but it only works properly when you confirm the details before the first cut.

For New Zealand homeowners, the safest approach is to compare written quotes, check the paperwork, and hire an arborist who can show they are experienced, insured and clear about site risks.