Category - Boilers
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Will Scholfield, Engineer

19 May : Updated 15 Mar ● 5 min read

Do all boilers have a 10 year warranty?

When you buy a new boiler, you want the assurance that you won't have to pay a fortune to fix it if something goes wrong, at least in the short term. And that’s why boilers come with a warranty, similar to any other high-ticket item you might buy.

Typically, a warranty is a contract issued by the manufacturer to the client, a pledge to repair or replace the boiler within a specific time limit.

When you have a boiler installation, the manufacturer gives you a warranty covering any problems with your new boiler for a certain amount of time. 

And in this guide, we cover what a boiler warranty is, the differences between a warranty and a guarantee, and compare most boiler warranties for a range of boiler brands, including answering the commonly asked question of whether or not all boilers come with a 10-year warranty.

What does a boiler warranty entail?

A boiler warranty is a written agreement by the manufacturer that promises to repair or replace a new boiler if it is faulty within a specific period of time. 

When choosing a new boiler, it is also essential to consider the boiler warranty to go with it, as it could save you a substantial amount of money on repair costs in the long term.

In the case of a breakdown or issue with your boiler, you can rest easy knowing that you'll be protected under your warranty terms. During the boiler's warranty term, the boiler manufacturer should repair or replace it if it is defective or a breakdown occurs. 

Boiler warranty vs boiler guarantee - What’s the difference?

A boiler warranty is a contract that stipulates someone will investigate the problem you are experiencing with your boiler, but there is no agreement to actually come out and fix the problem.

On the other hand, a boiler guarantee is an agreement that the manufacturer will send someone out to your property to investigate the problem and repair or replace the boiler if the problem is down to a manufacturing fault. Overall, people usually view boiler guarantees as superior because, with them, the boiler will get fixed and not just looked at.

Whether you choose a warranty or guarantee, you will want the terms to cover you for as long as possible so that you don’t need to worry about what you would need to do in the case of a boiler emergency.

What are the conditions of cover for boiler warranties?

All boiler warranties are subject to a strict set of conditions that you must comply with, or you could invalidate your boiler warranty. The fine print may differ for each warranty, but three main conditions appear across all warranties that you need to adhere to so they remain valid.

  • Your boiler must be installed by a Gas Safe registered engineer.
  • The warranty must be registered within 30 days of installation. When you get your boiler through BOXT, we register the warranty with the manufacturer for you, so you don't need to worry about missing the deadline!
  • You must have your boiler serviced annually by a Gas Safe Engineer. Ensure you get a certificate as proof that your boiler has been serviced.
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Boiler warranty lengths by brand

Boiler warranties will vary from manufacturer to manufacturer and will also depend on their ranges and models. There is no one-size-fits-all approach when it comes to manufacturer warranties, but all boiler brands typically have a standard warranty ranging from 2 to 10 years. 

Here’s how long the warranties are for some of the most common boiler brands, as provided by BOXT:

  • Worcester Bosch: 5-10 year warranty
  • Ideal: 5-12 year warranty
  • Baxi: 3-7 year warranty
  • Vaillant: 5-10 year warranty
  • Navien: 5-10 year warranty

Considering all these brands, it could be argued that Worcester Bosch has the best boiler warranties in terms of value as they offer a guarantee and a 10-year term as standard. This means you will have the peace of mind that if anything should happen to your boiler in that time, you will be able to get it fixed without extra cost.

Checklist for your boiler warranty

Not every warranty is the same. If you want more peace of mind, you might want to think about how good the manufacturer's warranty is when you buy a new boiler. There are three main factors to consider when looking for the best boiler warranty for you:

1. How long is the boiler warranty?

New boilers tend to be very dependable during their first few years, but the longer the boiler warranty term lasts, the longer you'll have the peace of mind that any defects that may develop are likely to be covered. When shopping for a new boiler, be sure to check how long the warranty is on your chosen model.

2. Which parts are covered by the boiler warranty? 

Some warranties may require you to pay an additional cost for parts and labour, especially if the heating engineer needs to get ahold of manufacturer-approved parts. Others will need a deposit for any service call, which will only be repaid if the warranty covers the problem. 

Keeping up with your annual boiler service will enable you to catch boiler problems sooner and so will reduce the cost of only manufacturer-approved parts and labour costs during a breakdown.

3. What are the boiler warranty exclusions?

Check the boiler warranty terms and conditions for any other exclusions that might void the manufacturer's warranty. Some warranty periods may have some special terms and conditions not mentioned in this article. Hence, you must check all standard warranty and extended warranty conditions with the manufacturer before choosing the best warranty for you and your boiler.

Final thoughts

If you’re ready to choose a new boiler and want to select a model with the best-suited warranty for you, find out more about the BOXT boiler warranty guarantee when you choose us for boiler installation. Or, if you're still deciding which boiler brand would be best for your home, take a look at our boiler comparison guides, like Baxi vs. Worcester Bosch boilers and Ideal vs. Baxi boilers