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Yes — raising your house insurance excess can be a sensible way to reduce premiums in Westport, provided you can comfortably afford the extra cost if you need to make a claim.

The key is to choose an excess that protects you against a financially devastating loss, while accepting that you may have to pay more yourself for smaller repairs.

In Westport, I'd be particularly careful about the trade-off because natural-hazard exposure, local flood risk, and the cost of repairing or rebuilding a home can all affect insurance costs and the risks you retain yourself. A higher excess won't necessarily solve a high premium if the main driver is the property's location or rebuilding risk.

1. How much could raising your excess save?

Here's an illustrative example — not a quote for Westport. Your insurer's actual savings may differ considerably.

Excess per claim	Annual premium	Premium saving
$500	$2,500	—
$1,000	$2,350	$150/year
$2,500	$2,100	$400/year
$5,000	$1,900	$600/year

The important question isn't just how much you save each year, but how long it would take those savings to cover the extra excess you'd have to pay.

For example, moving from a $500 excess to a $2,500 excess means accepting an additional $2,000 of out-of-pocket cost per claim. If you save $400 a year, it takes five claim-free years to save that amount.

That doesn't mean the higher excess is automatically a bad choice — it means you should be confident you can cover the difference if something goes wrong.

2. Why I'd be more cautious in Westport

Westport has a specific insurance challenge beyond general premium increases. In December 2025, Buller District Council reported that AA Insurance had temporarily stopped offering new home and landlord insurance policies in postcode 7825 because of flood-risk exposure. Existing AA customers were not affected by that decision at the time. Councils committed to working with insurers as changes signalled for Westport

The flood-protection scheme is also being reconsidered, with a public consultation running from 21 September to 21 October 2026. Special consultative procedure for Westport Flood Protection Scheme gets underway

That makes three things especially important:

• Check flood cover first. A lower premium isn't a good deal if the policy excludes an important risk or has special conditions.
• Don't assume all excesses are the same. Your policy may have separate or additional excesses for certain events.
• Keep enough cover for a major loss. A high excess should mean accepting manageable repair costs yourself, not leaving yourself unable to recover after serious damage.

New Zealand's Natural Hazards Commission provides a layer of cover for eligible natural-hazard damage, but it doesn't replace the need to check your private policy, particularly for the full cost of rebuilding and flood-related land damage. About natural hazards cover :: Natural Hazards Commission Toka Tū Ake

3. How I'd choose an excess without taking too much risk

I'd use this approach:

Step 1: Set your maximum affordable excess

Choose an amount you could pay tomorrow from savings without borrowing or dipping into money needed for essential living costs. Consider whether you could afford it more than once.

Step 2: Get three comparable quotes

Ask your insurer for premiums at your current excess and at $1,000, $2,500 and, if affordable, $5,000. Check that the cover and exclusions remain the same.

Step 3: Check the natural-hazard excess separately

Ask what you'd pay for flood, storm, earthquake and landslip claims, and whether any special excesses or exclusions apply. Confirm how the insurer coordinates these with Natural Hazards Commission cover.

Step 4: Put the savings aside

Transfer the annual premium saving into an emergency fund. This helps build the cash buffer needed to pay a future excess.

Consumer Protection NZ explains that a higher excess generally reduces the premium, but if the repair costs less than your excess, you may receive no insurance payment. The Insurance Council of New Zealand also recommends comparing the excess alongside the actual cover provided. InsuranceConsumer Guides

4. Let's work out what's sensible for your situation

I can help you compare the trade-off using your actual figures rather than guess at how much you might save.

My starting recommendation: consider a moderate excess increase first, rather than jumping straight to $5,000. The right choice is the highest excess that gives you a worthwhile premium reduction while leaving you able to pay it comfortably — and only after you've confirmed that the policy provides the protection you actually need.