Pet insurance for a diabetic pet: questions to ask

Quick answer

Ask every insurer the same questions, in writing, and record the answers side by side. This page gives you fifteen, in the order that matters most for an ongoing condition. There is a printable checklist with space to write each answer. For how insurance treats a diabetes diagnosis in the first place, read pet insurance and a diabetes diagnosis.

Why the questions matter more than the price

Most policies do not cover pre-existing conditions, or a condition that appears in the first 14 days of the policy, according to the Financial Ombudsman Service. Which? says most insurers exclude pre-existing conditions from new cover, though some allow cover after a set period with no treatment or symptoms, often two years, and others after a medical screening. The headline price will not tell you any of this.

The Ombudsman also says it is not enough for an insurer to tell you to read the policy document. That is a reason to ask your questions before you buy, not after a claim is declined.

Fifteen questions to ask

What kind of cover is it?

1. Is this a lifetime, maximum-benefit (per condition), time-limited or accident-only policy?
2. What is the annual limit, and does it reset at each renewal?
3. Is there also a limit for each condition, and what counts as the same condition (for example, ongoing medicines, tests, check-ups and complications)?
4. Is there a time limit on how long you pay for one condition?

Which? explains the types: lifetime policies pay for treatment indefinitely, subject to annual limits. Maximum-benefit policies stop paying for a condition once a set amount is reached, even after renewal. Time-limited policies typically stop after 12 months from the start of a claim. Question 3 is where an ongoing condition is won or lost.

What happens with existing conditions?

5. How do you define a pre-existing condition, and how far back do you look at my pet's history?
6. If something is excluded, can it ever be covered later, for example after a period with no treatment or symptoms, or after a medical screening?
7. Would the policy still pay for other conditions that are unrelated to anything excluded?

Waiting periods and renewal

8. What are the waiting periods for illness and for accidents, and are they waived if I am switching from another insurer? Which? says most insurers do not cover an illness that starts in the first 10 to 14 days, and a few waive it on a switch.
9. Will you offer renewal every year, and can you change my cover or add exclusions at renewal?
10. How is the renewal premium set, and does it rise as my pet gets older?

On question 9, the Ombudsman says an insurer will not normally be able to change the basic cover of a policy described as lifelong or lifetime, except at renewal, and that a renewal change which significantly alters the original cover is likely to be upheld as a complaint. It also says that if no renewal option is offered, lifetime cover is lost and a new insurer is unlikely to cover existing conditions. That is why switching needs care.

What will you pay for, and what will I pay?

11. What is the excess, and is it per claim, per condition or per year?
12. Is there a co-payment, and does it rise as my pet gets older? Which? says older pets often face higher excesses, co-payments or both, and that a co-payment can be as much as 25% for older animals.

Making a claim

13. Do you pay the vet directly, or do I pay and claim back? How long do claims take, and what is the deadline for submitting one?
14. What documents do you need, such as itemised invoices and clinical notes? Do you need to approve treatment first, or can a person I name, such as a sitter or boarder, authorise urgent treatment?
15. Is treatment abroad covered, in which countries, and what must I do before I travel and when I claim?

Which? says claims are commonly due within 12 months of treatment, but that this varies by insurer. The Ombudsman lists vet invoices among the documents it usually asks for in a complaint, so ask your practice for itemised invoices as you go.

Before you sign

• Check the firm. The FCA says to use its Firm Checker before buying a product or service, to see whether the firm is authorised and has permission for what you want.
• Ask for the wording and the schedule in writing, and keep your questions and the answers with them.
• Do not cancel an existing policy until the new one is in force.
• Know the complaint route. Complain to the insurer first. If you have no final response within eight weeks, or you are unhappy with it, the Financial Ombudsman Service can look at it.

Compare answers, not adverts

Print one checklist for each insurer. Write the date and the name of the person you spoke to. A question that gets a vague answer is worth asking again in writing.

For the cost side of the decision, the cost of care calculator and the guide to what diabetes costs help you see what the policy needs to cover.

How Mello helps

A clear record makes claims and vet conversations easier. Mello logs insulin, meals and readings in one place, and the vet report in Premium (GBP 7.99 a month or GBP 59.99 a year) gives you a tidy summary to share. See vet-ready diabetes reports. Mello is a tracking tool, so your vet is always the one to ask.

Sources

The pages below were each opened and checked on 30 October 2026 before being listed here, and anything that could not be opened was left off rather than guessed at.

• Pet insurance: Financial Ombudsman Service, undated (2026 copyright), accessed 30 October 2026. Pre-existing conditions, lifetime policies and renewal, what the Ombudsman looks at, and that you complain to the insurer first and can go to the Ombudsman after eight weeks without a final response.
• Pet insurance: Financial Ombudsman Service, undated (2026 copyright), accessed 30 October 2026. The 14-day point, that telling a customer to read the policy document is not enough, lifetime policy changes at renewal, and vet invoices among documents requested.
• Pet insurance explained: Which?, 4 December 2025, accessed 30 October 2026. The policy types, pre-existing conditions, 10 to 14 day waiting periods, excesses and co-payments of up to 25% for older animals, and claim deadlines.
• Using the Financial Services Register: Financial Conduct Authority, last updated 22 September 2026, accessed 30 October 2026. That the Firm Checker shows whether a firm is authorised and has permission for the service you want.