Boiler warranties explained

A boiler warranty will protect you against having to pay for repairs on a faulty product, but there are a few terms you need to be aware of.


A boiler warranty serves as a promise by the manufacturer to repair or replace a boiler, if necessary.

They last for a specific period of time after the purchase, typically between 1 and 10 years, but you’ll need to meet certain terms in order for the manufacturer to fulfil this promise.

Most boilers will come with a warranty as standard, and you’ll often be given the chance to pay for an extended warranty.

When you consider the potential cost of replacing a broken boiler, this is often seen as a good investment.

Boiler warranty length vs cost

Boilers with longer warranties will typically cost more. There are two potential reasons for this:

  • The customer is paying extra for the added security of a longer warranty.
  • Manufacturers feel more comfortable placing longer warranties on higher-quality boilers that are less likely to break.

Either way, it makes sense to pay extra for a boiler with a longer warranty. You’ll either be getting a better boiler, a longer period without having to pay to replace it, or both.

Some experts suggest that a five-year warranty is more than adequate when you consider the quality of modern boilers. Nevertheless, a simple rule to follow is: the longer the warranty, the better.

Boiler gadget warranty claims

Some boilers come with external gadgets that will also be covered by the warranty.

The most common example of this is the smart thermostats, provided by the likes of Nest and Honeywell.

Often, these gadgets are only included in the warranty if they’re installed at the same time as the boiler and registered with the manufacturer.

How to claim on your boiler warranty

If, for whatever reason, you need to make a claim on your boiler warranty, you’ll need to get in touch with your boiler provider. Some providers have separate contact details for warranty claims.

Before sending someone out to investigate your boiler, the manufacturer will often make checks to ensure your warranty is valid.

The terms required will differ depending on your manufacturer, but they typically include various maintenance and installation standards such as:

  • The boiler must have been installed by a Gas Safe registered engineer.
  • The boiler must be registered with the manufacturer within 30 days of installation.
  • The boiler must have been serviced by a Gas Safe registered engineer at least once every 12 months.
  • All previous repairs must have been carried out using manufacturer-approved parts.

The difference between a guarantee, a warranty and boiler insurance

With a boiler guarantee, the manufacturer promises to repair or replace a faulty boiler for free, regardless of any terms and conditions.

As such, you’re technically more likely to have your boiler replaced under a guarantee than under a warranty.

However, as long as your boiler is installed and maintained properly, you should have no problems making a successful claim on your warranty either.

As such, a “guarantee” is often regarded as little more than a marketing trick.

Boiler insurance typically involves monthly payments to a third-party insurance company. Often, there will be terms that need to be met in order for the insurer to pay out. As long as you keep paying your monthly premium, there will be no expiry date for this product. However, if your boiler is already under warranty, there is no reason to have insurance as well.

Ask an Expert

You are about to post a question on

  • Do not enter personal information (eg. surname, phone number, bank details) as your question will be made public
  • is a financial comparison and information service, not a bank or product provider
  • We cannot provide you with personal advice or recommendations
  • Your answer might already be waiting – check previous questions below to see if yours has already been asked provides guides and information on a range of products and services. Because our content is not financial advice, we suggest talking with a professional before you make any decision.

By submitting your comment or question, you agree to our Privacy and Cookies Policy and Terms of Use.

Questions and responses on are not provided, paid for or otherwise endorsed by any bank or brand. These banks and brands are not responsible for ensuring that comments are answered or accurate.
Go to site