A decline letter after a storm leak doesn't mean the decision is final, and it doesn't mean you did anything wrong when you lodged the claim. Insurers decline roof leak claims for a handful of specific reasons, and each one has a practical response.
We carry out roofing-focused inspections and write assessment letters for Wellington homeowners, plenty of them after a declined claim. What follows is how insurers approach roof leak claims, where they look to avoid paying, and how a roof assessment helps you respond.
Sudden damage versus gradual wear
Most roof leak declines come back to one line in your policy: cover is for sudden, accidental, one-off events (like a storm), and not for gradual deterioration, wear and tear, ageing, or lack of maintenance.
On a real roof that gets harder to call. Most Wellington roofs that leak in a storm were already carrying some age, some rust, perished sealant, or a tired flashing. An insurer weighs up what let the water in, the storm or the condition the roof was already in, and that judgement is where most claims are settled or declined.
The declines we see most often
"Maintenance, not storm damage"
This is the most common decline. When the damage looks like it built up over time, rust eating through old fixings, perished sealant, flashings worn thin, an insurer can class it as maintenance and decline it, even when a storm is what finally tipped the roof into leaking. Older metal and pressed-metal tile roofs draw this reading most often, because age-related wear is visible and easy to point to.
"We can't confirm the cause"
On many roofs the exact entry point can't be pinned down without opening the roof up. Water travels a long way between where it gets in and where it shows up on your ceiling. If nobody can confirm a storm-related entry point, an insurer may argue the link to the storm isn't established and decline on that basis. A careful assessment sometimes has to say the cause can't be confirmed yet, and an insurer can lean on that wording to support a decline.
"Future-proofing" or "betterment"
Insurers generally pay to put the roof back to the condition it was in before the event, not to improve it. If the sensible fix would leave you better off than before, replacing more than was damaged or upgrading an old detail, an adjuster may treat that extra as "future-proofing" or "betterment" and decline that portion. A recommendation to fix it properly so the leak doesn't come back can get reframed as an improvement the policy won't cover.
Why a letter can't just declare "storm damage" and be done:
A letter that flatly blames the storm is easy to write and easy for an experienced adjuster to pull apart. If the roof is worn, or the entry point can't be confirmed, an overstated letter falls over the moment it is questioned. A factual record of what is actually on the roof carries more weight in a claim than a confident one that does not hold up.
Where a roof assessment letter fits in
When an insurer asks what caused a leak, or you want to push back on a decline, a clear dated record of the roof's visible condition and the likely cause helps, backed by photos. That's what an insurance roof assessment letter is: a roofing-focused inspection of the visible and accessible areas, written up so a claims handler can read it and see what they're being asked to consider.
The letter documents the visible condition and gives our read on the likely cause. We don't provide a guaranteed leak diagnosis, we don't open up the roof, and we don't make the claim decision, which sits with your insurer. What it does is put a dated, photographed record in front of the claims handler in place of a verbal description.
Pushing back on a decline
An insurer doesn't make money by paying claims, and a homeowner who accepts the first decline is the cheapest outcome on their books. Some declines are an opening position rather than a settled one, and terms like "maintenance", "can't confirm the cause", and "future-proofing" can be softer than they read at first. A dated, factual record of the roof's condition gives you something concrete to challenge the decision with.
If your claim is declined
- Ask for the decline in writing, quoting the exact policy wording it relies on.
- Read that wording on "sudden damage" versus "gradual deterioration" and "maintenance", and hold it against the reason you were given.
- Get a roofing-focused assessment letter recording the visible condition and likely cause, with dated photos.
- Separate the leak repair from any wider improvement, so the whole claim isn't dismissed as "future-proofing".
- If you still disagree after their internal complaints process, escalate to their free dispute-resolution scheme.
When the decline stands
Some claims are declined and stay declined, and the roof still needs work. The usual choice is between a durable repair and a lower-cost, best-effort fix that can't carry the same warranty. Which one makes sense depends on the roof, how long you plan to stay, and your budget, and the decision is yours.
How Aerial Assess can help
Aerial Assess is a Wellington-based, drone-assisted roof inspection and assessment service. If your insurer has asked what caused a leak, or a claim has been declined and you want a clear record of the roof's condition, we inspect the visible and accessible areas, using a drone where access is difficult, and write it up as an assessment letter you can pass straight to your insurer.
We cover Wellington, the Hutt Valley, Porirua, the Kāpiti Coast, and Wairarapa. A visual assessment has limits, so there's no guaranteed leak diagnosis, and there's no obligation to use us for any repair work that comes out of it.
3,000+ roofs assessed. Fixed price up front.
Common questions
Can you guarantee my insurance claim will be approved?
No, and you should be wary of anyone who says they can. We carry out a roofing-focused inspection of the visible and accessible roof areas and write up a clear, factual assessment letter of what we observed and the likely cause. The claim decision sits entirely with your insurer. What a good letter does is give you and your insurer a clear, written record to work from.
My insurer says my leak is "maintenance, not storm damage". What does that mean?
Most house policies cover sudden, one-off events such as a storm, but exclude gradual wear, ageing, and lack of maintenance. The damage might look like it built up over time: rust through old fixings, perished sealant, worn flashings. When it does, an insurer may class it as maintenance and decline it, even when a storm is what finally made it leak. The line between the two is often where claims are won or lost.
Can you prove the storm caused my roof leak?
Often the exact point where water is getting in can't be confirmed for certain without opening up the roof, and we're always upfront about that. What we can do is document the visible condition, note what we observed, and give our read on the likely cause. We don't provide a guaranteed leak diagnosis, and we don't make the claim decision, but a clear, dated record of the roof's condition is usually far better evidence than a verbal description.
My insurer called the repair "future-proofing" or "betterment". Why does that matter?
Insurers generally pay to put the roof back to the condition it was in before the event, not to improve it. If a repair would leave you better off than before, by upgrading or doing more than a like-for-like fix, an adjuster may treat the extra as "future-proofing" or "betterment" and decline that part. It's worth separating the leak repair itself from any wider improvement, so each can be considered on its own terms.
Who can I complain to if I think my claim was unfairly declined?
First, ask your insurer for the decline reason in writing and the specific policy wording it relies on. If you still disagree after their internal complaints process, your insurer must belong to a free dispute-resolution scheme that can review the decision at no cost to you. For many insurers that scheme is the Insurance & Financial Services Ombudsman. Ask your insurer which scheme they belong to, or check your policy documents.