How to reduce your house insurance costs in New Zealand without taking big risks

With mortgage payments and household expenses rising, it makes sense to look for savings on house insurance. The trick is to reduce the cost of your policy without leaving yourself exposed to a loss you couldn't afford to cover.

In New Zealand, house insurance deserves particular care because rebuilding costs can be high, and natural hazards such as earthquakes, flooding and landslips can create significant financial risks.

I'd approach this in the following order: review your cover, compare insurers, adjust your excess carefully, and look for legitimate discounts. You may be able to save money without sacrificing essential protection.

1. Compare insurers before cutting cover

One of the best first steps is to get quotes from several insurers using the same property details and broadly equivalent cover.

Compare at least three options if possible, including your current insurer. A cheaper policy isn't necessarily a better deal if it has lower limits, more exclusions or a much higher excess.

When comparing quotes, check:

• Sum insured: Is the amount enough to rebuild your home, including demolition, debris removal, professional fees and other rebuilding expenses covered by the policy?
• Natural hazard cover: What protection applies to earthquakes, flooding, landslips and other relevant hazards?
• Excesses: How much would you have to pay towards a claim? Check whether different excesses apply to different events.
• Temporary accommodation: Would the policy help cover somewhere to live if your home became uninhabitable following an insured event?
• Hidden limitations: Are retaining walls, driveways, fences, outbuildings or other structures covered, and to what extent?
• Claims service: How does the insurer handle claims, and what do its policy documents say about settlement and repairs?

My recommendation: Ask your current insurer whether it can offer a better premium, then compare that offer against alternatives. You don't need to sacrifice important protection just to get a lower price.

2. Increase your excess, but only to an affordable level

This is one of the most straightforward ways to lower your premium.

Your excess is the amount you pay towards a claim before your insurer pays the rest. A higher excess generally means a lower premium. Depending on the insurer, you may be able to choose an excess of $750, $1,000, $1,500 or more. consumer.org.nz, icnz.org.nz

The important question is: Could you comfortably pay the excess tomorrow if something went wrong?

For example, imagine these hypothetical quotes:

Option	Annual premium	Excess
A: Lower excess	$2,400	$500
B: Medium excess	$2,200	$1,000
C: Higher excess	$2,000	$2,000

These figures are illustrative, not actual quotes.

Compared with Option A:

• Option B saves $200 a year.
• Option C saves $400 a year.

Option C would save you $2,000 over five years if the premiums stayed the same. However, you would need to pay an additional $1,500 towards a claim compared with Option A.

The right choice depends on your savings and your tolerance for risk.

My recommendation: If you have a reasonable emergency fund, consider a moderate excess increase first. Don't choose a $2,000 excess if finding that money would mean borrowing on a credit card or missing mortgage payments.

Before deciding, ask your insurer for quotes at three different excess levels and compare the actual savings.

3. Check that your sum insured is accurate

Your sum insured is the maximum amount available under a fixed-sum-insured policy to rebuild your home, subject to the policy's terms.

It's easy to confuse three different property values:

• Market value: what someone might pay to buy your property.
• Rateable value: the council's valuation for rating purposes.
• Rebuild cost: what it would cost to reconstruct your house after a major loss.

For insurance purposes, the third figure is the important one.

The Insurance Council of New Zealand warns that underestimating rebuild costs can leave homeowners paying the difference themselves. On the other hand, setting your sum insured unnecessarily high may mean paying more than you need to, because a policy generally doesn't pay more than the actual covered rebuilding cost. icnz.org.nz

Here's what I'd do:

1. Check your current policy schedule.
2. Use your insurer's rebuild calculator to estimate the appropriate sum insured.
3. Check whether demolition, professional fees, site clearance and difficult site access have been accounted for.
4. Make sure any significant renovations and relevant structures, such as retaining walls, are considered.

Don't simply reduce the sum insured by 10% to save money. That could create a substantial shortfall after a major event.

Instead, correct any genuine overestimate while retaining adequate protection.

4. Ask about discounts and practical risk-reduction measures

Contact your insurer and ask what specific measures could reduce your premium.

Depending on the insurer and property, possibilities include:

• Security improvements: An alarm, deadlocks or other security measures might qualify for a discount.
• Reducing preventable risks: Maintaining gutters, repairing leaks and addressing known maintenance problems can help prevent damage, although discounts aren't guaranteed.
• Reviewing optional extras: Check whether you are paying for optional benefits you no longer need.
• Annual payment: Ask whether paying your premium annually costs less than paying monthly or fortnightly.

The key is to check the actual savings before spending money.

For example, if installing a security system costs $800 and saves you $80 annually, it would take 10 years to recover that initial cost, ignoring any other benefits or costs.

ICNZ recommends asking insurers about risk-reduction measures, available discounts and payment options. icnz.org.nz

A useful question to ask: "What changes could I make to my property or policy that would genuinely reduce my premium, and how much would each change save me?"

5. Consider a different level of cover only after comparing the risks

If your household budget is under serious pressure, you may want to investigate less comprehensive insurance.

However, this is where you need to be particularly careful.

There is a significant difference between reducing optional benefits and removing protection against major losses.

For example, you might be able to choose a policy that covers specified events rather than a broader range of accidental damage. Some insurers may offer more limited options, such as fire-only cover.

These options can be cheaper, but they also leave you exposed to more risks.

Before choosing a less comprehensive policy, ask:

• Which events would no longer be covered?
• Would accidental damage still be covered?
• What protection would apply to storm damage, flooding and landslips?
• Would you still have cover for temporary accommodation?
• What would happen if a major loss resulted from an event excluded by the policy?

Be particularly careful about natural hazards

New Zealand has a distinctive natural-disaster insurance arrangement.

Eligible residential property with a current private insurance policy that includes fire cover generally receives Natural Hazards Commission Toka Tū Ake cover, known as NHCover, subject to the scheme's eligibility requirements and limits.

However, NHCover is not a substitute for comprehensive private house insurance. It has defined limits and eligibility rules, and private insurance is important for protection beyond the statutory scheme. icnz.org.nz

My view: If you need to reduce your cover, compare the cost of a less comprehensive policy against the financial consequences of the risks it excludes. Don't assume that natural-disaster protection will cover the entire cost of rebuilding your home.

6. Shop around rather than automatically renewing

This is particularly worth doing if you've been with the same insurer for several years.

Consumer NZ reported in February 2026 that its comparison of policies with equivalent excesses and sums insured found a median potential saving of approximately $550. The amount available to any particular homeowner will vary, and the research doesn't guarantee a saving for your property. consumer.org.nz

I would obtain quotes from at least three insurers and compare them on a like-for-like basis.

You could start with:

• Consumer NZ's house and contents insurance comparison
• Insurance Council of New Zealand's house and contents insurance guidance

When requesting quotes, use the same:

• Sum insured.
• Excess.
• Property information.
• Cover type and optional benefits.

Then compare the final annual premium, including applicable levies and fees.

Once you have a cheaper quote, contact your current insurer and ask whether it can match or improve the offer.

Remember that the cheapest quote isn't necessarily the best policy. Read the exclusions, excesses and claims conditions before switching.

7. Don't cancel your cover without checking your mortgage requirements

This is especially important when your mortgage is already putting pressure on your budget.

Your lender will generally require you to maintain appropriate insurance over the mortgaged property. The precise requirements depend on your loan agreement.

If you are struggling to afford the premium, contact your insurer and mortgage lender before allowing cover to lapse.

Ask whether you can change your excess, payment arrangements or policy without breaching your loan conditions.

Keeping your lender informed is much safer than cancelling insurance and hoping to arrange it again later.

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My recommended plan for your household

If I were looking for savings while protecting a family home, I'd tackle the problem in this order.

Priority	Action	Risk level
1	Get competing quotes with equivalent cover	Low
2	Ask your current insurer to review the premium	Low
3	Check the sum insured for accuracy	Low if properly assessed
4	Compare moderate excess increases	Manageable if affordable
5	Check discounts and annual-payment savings	Low
6	Remove unnecessary optional benefits	Depends on the benefits removed
7	Consider less comprehensive cover	Higher; assess exclusions carefully

I'd start with the first five. They offer opportunities to reduce costs without immediately sacrificing major protections.

I'd also avoid making several changes at once. If you obtain competing quotes first, you'll have a better idea of whether the savings come from a more competitive insurer, a higher excess or reduced cover.

One final consideration: look at the whole household budget

Since your mortgage and other household costs have risen, it may help to review insurance alongside your other major expenses.

If you are struggling to meet your mortgage payments as well as your insurance costs, speak to your lender early about your options. If the pressure is broader, a free financial mentor through MoneyTalks may be able to help you work through your budget and prioritise essential expenses.

The aim is to make your home more affordable to keep, not simply to obtain the cheapest premium at any cost.

I can help you narrow this down

The most useful next step is to work out where your biggest potential saving lies.

Can you tell me two things?

1. Roughly how much do you pay for house insurance each year? For example, $1,500, $2,500, $4,000 or more.
2. What type of home do you have? For example, a standard standalone house, a townhouse, a rural property or an older home.

With those details, I can suggest which cost-saving options are most worth investigating for your circumstances in New Zealand, without relying on risky reductions in cover.