Pet insurance for pre-existing conditions
If your dog already has a health condition, it's natural to wonder whether any pet insurance will cover it. The honest answer is that no insurer covers a condition your dog has on the day you join. Where policies really differ is what happens next: some will cover a condition again once it has cleared up and stayed clear for a while, and others never will. Here's how each insurer we've read handles it, so you know where you stand before you buy.
What is a pre-existing condition?
It's any illness or injury your dog had, or showed signs of, before your policy started, whether or not a vet treated it. Insurers find out from your dog's vet records when you claim.
1 of the 18 UK insurers we compare can cover a pre-existing condition in some way; 15 never do.
- 1Covered on a special plan
- 2Decided case by case
- 15Never covered
From each insurer’s own policy documents, read in October 2026. See the US version
Which insurers cover pre-existing conditions?
Grouped by what the policy does, with each insurer’s answer in plain English. Click an insurer’s name for everything its policy covers.
Covered on a special plan
- ManyPetsMust be clear for Up to £1,500Excluded on most plans, but the Standard Care Pre-existing plan covers some pre-existing conditions, up to £1,500.
Decided case by case
- PetplanPetplan decides when you join: a permanent exclusion for lifelong conditions such as arthritis, or a temporary one it can lift once your dog has been free of symptoms for a set time.
- Direct LineNot covered unless you declare it and Direct Line agrees in writing to cover it.
Never covered
- AdmiralNot covered: anything a vet looked at, or that you knew about, before the policy started.
- AgriaNot covered: anything that first showed signs before the policy started.
- Animal FriendsNot covered, whether or not it needed treatment, and the booklet describes no way to cover it later.
- WaggelNot covered: anything with signs before you joined or in the first 14 days.
- More ThanNot covered: any illness, injury or complication known before the policy started.
- Sainsbury'sNot covered: anything you knew about, or a vet noted, before cover started.
- John LewisNot covered: anything you knew about, or a vet noted, before cover started.
- TescoNot covered: anything you knew about, or a vet noted, before cover started.
- PDSANot covered: anything you knew about, or a vet noted, before cover started.
- Marks and SpencerNot covered: anything you knew about, or a vet noted, before cover started.
- RSPCANot covered: anything you knew about, or a vet noted, before cover started.
- ArgosNot covered: anything you knew about, or a vet noted, before cover started.
- Post OfficeNot covered: anything you knew about, or a vet noted, before cover started.
- LV=Not covered: anything that showed before cover started, or with the same diagnosis or symptoms.
- ChurchillNot covered: anything that showed signs before cover started, or is related to it.
Your questions answered
Can I get pet insurance for a rescue dog?
Yes, and it's well worth doing early. A rescue dog is insured just like any other dog, so the same rule applies: anything that showed signs before the policy started, or during the waiting period, counts as pre-existing. Ask the rescue for your dog's vet records when you bring them home, because insurers look at those records if you ever need to claim.
Can I switch pet insurance if my dog has a pre-existing condition?
You can, but it's worth thinking it through first. A new insurer will treat anything your dog has already had as pre-existing, so it won't be covered under the new policy. If your dog has an ongoing condition on a lifetime policy, staying with your current insurer is usually what keeps that condition covered.
What counts as a pre-existing condition for pet insurance?
It's any illness or injury your dog had, or showed signs of, before the policy started or during the waiting period, whether or not a vet treated it at the time. Insurers check your dog's vet records when you claim, so even a short note about symptoms can matter.
Can I get pet insurance after a diagnosis?
Yes, you can still buy a policy, but the condition your dog has been diagnosed with will be excluded as pre-existing. Some insurers will cover a curable condition again once your dog has been free of it for a set time, and the list above shows which ones and how long they ask for.
Can a cured pre-existing condition be covered?
With some insurers, yes, once your dog has been free of symptoms and treatment for a set period. Long-term conditions, and knee and ligament problems, are usually never treated as cured, so they tend to stay excluded.
Every answer is a plain-English summary of the insurer’s own policy wording, read in October 2026. Policies change and terms can differ by plan, so check the policy before you buy. Each insurer’s page shows the exact section we read. Barklopedia doesn’t arrange UK insurance.
More guides to dog insurance: Pet insurance for older dogs · Third party liability insurance for dogs · Dog insurance by breed · Multi dog insurance · Lifetime pet insurance · Does pet insurance cover dental? · What does dog insurance cover? · Pet insurance excess