Pet Insurance for Dogs with Heart Conditions

The direct answer

Heart conditions are usually covered like other illnesses when they begin after cover starts, and modern treatment can keep a dog comfortable for years. The difficulty sits at the start.

Hearts get listened to early, and a murmur noted at a puppy check or a vaccination visit can mark heart problems as pre-existing before an owner has any reason to worry. Once a heart finding predates cover, insurers usually exclude anything related to it, and the numbers involved, from scans costing £1,000 or more to surgery at five figures, are large enough that the exclusion matters.

When a heart problem counts as pre-existing

The usual definition applies: signs or symptoms noted before cover began, or during the waiting period (usually the first 14 days), with some insurers looking back 24 months. The catches are specific to hearts. Waggel puts the heart case plainly: conditions, symptoms or signs that started before cover began, or during the warm-up period, are not covered, and a pre-existing heart problem would exclude all claims related to the heart.

Puppies often have harmless flow murmurs that disappear by four to six months, but if the murmur was written down before the policy started, most insurers will treat it as a pre-existing finding regardless. The Financial Ombudsman Service has seen the other side of that: an owner who did not mention a recorded murmur when buying cover lost the heart claim, because the insurer said it would have excluded heart conditions had it known.

It is not only consultations that count, either. The records include conversations, and PDSA's pet insurance terms say advice from a vet or another professional is considered even if no treatment followed.

What heart care costs

Diagnostics come first. A murmur assessment at a specialist puppy clinic costs £250 to £450, a consultation with an echocardiogram runs from around £1,000 to £1,150 at referral hospitals, rising to around £1,350 for a full work-up including ECG and blood pressure, and a 24-hour Holter monitor costs from around £470, rising to around £990 at some referral clinics. At a not-for-profit practice, a heart scan on its own can cost around £430.

Medication is a monthly cost for life. Pimobendan (sold as Vetmedin) runs about £1.10 a tablet at online pharmacies, which works out around £33 a month for a 10kg dog on the standard dose. Benazepril costs about £1.57 a tablet and furosemide costs pennies a day.

A vet quoted by ManyPets put the cost of managing heart disease anywhere from a few pence a day on basic diuretics up to £3 or £4 a day. Prescription fees are set to be capped at £21 for the first medicine and £12.50 for each additional one under the Competition and Markets Authority's reforms, with the first changes starting to come into force later in 2026. Buying medication online with a prescription can save £200 a year or more.

Surgery is where the numbers climb fastest. Closing a patent ductus arteriosus (a vessel that should close after birth but stays open) costs £4,100 to £5,850 at UK referral hospitals. Pacemaker implantation runs £4,500 to £6,500. Minimally invasive mitral valve repair, for the most common heart disease of all, is quoted at £12,500, a level beyond many standard annual limits.

Breeds that need watching

Cavalier King Charles spaniels are the extreme case: by the age of ten, almost all of them show signs of mitral valve disease on a heart scan. Dobermanns carry the heaviest burden of dilated cardiomyopathy, with about 58% developing it over their lifetime, and Great Danes are not far behind in UK screening at around 36%.

Boxers have their own condition, a heart rhythm problem called arrhythmogenic right ventricular cardiomyopathy (ARVC), often picked up through a 24-hour Holter monitor, a vest that records the heart's rhythm. Flat-faced (brachycephalic) breeds as a group are around four times more likely to have a cardiac condition, and the Kennel Club runs a heart scheme for cavaliers that recommends assessment at two, four and six years.

What cover needs to do

Two features decide whether a policy copes with heart disease. The first is lifetime cover: heart medication is typically lifelong, and typically, only a lifetime policy keeps an ongoing condition covered year after year, with the annual limit resetting each year. Waggel sells lifetime cover only, so an accepted heart condition keeps that year-after-year protection.

The second is what happens as your dog ages. Some insurers add a 20% co-payment at renewal once a dog passes a set age, so part of each future heart claim falls to the owner. Terms differ, so ask before you buy, especially with a breed from the list above.

Common questions

My puppy has a heart murmur. Can I still insure him?

Flow murmurs are common in puppies and often fade by four to six months, so the timing of the first note in the records matters more than the finding itself. If a murmur was recorded before cover began, expect heart-related claims to be excluded, and ask the insurer to confirm its position in writing before you decide.

Does insurance cover echocardiograms and heart scans?

Usually. If it is a new problem, scans count as vet fees, subject to your limits and excess; if a murmur was already noted, expect the scan to fall under the pre-existing exclusion. Costs vary widely: around £430 at a not-for-profit practice, or £1,000 or more for a specialist consultation with a scan.

Is long-term heart medication covered?

On a lifetime policy, yes, within the annual limit, which resets each year. Check the limit as well as the price: pimobendan for a 10kg dog runs roughly £33 a month from an online pharmacy, and other drugs add to that, so a small limit can be used up quickly.

What about surgery, like a pacemaker or valve repair?

It is covered when the condition arose after cover started and the limit is high enough. Pacemakers cost £4,500 to £6,500, and mitral valve repair is quoted at £12,500, so a policy with a modest limit may leave a shortfall rather than a clean decline.

Why do insurers take heart conditions so seriously?

Because they are lifelong and expensive. Heart medication rarely stops once it begins, some surgery runs to five figures, and murmur findings can appear years before symptoms, so insurers work from the paper trail. That is the practical argument for arranging cover early, while the records are still clear.

Costs vary by practice, so ask your vet for an estimate.