Which Are The Best Boilers That Come With A 10-Year Warranty?

If you’re looking for a new boiler, the quick guide below will help you shortlist all brands and models, to only those that only have long warranties.

We’ll focus on boilers with a 10-year guarantee as a minimum.

Why Choose A Boiler With A 10-Year Warranty?

The difference in price between a boiler with a 10-year warranty, and one with say, 2-years, isn’t much. For a typical 24kw unit, you’d expect the price difference to be around £200.

Essentially, you’re paying £25 per year, for each additional year of warranty. In our opinion, that’s an absolute bargain when you consider the overall purchase could be in the thousands, including installation.

The difference in price will be in relation to the purchase price of the boiler only, and not the cost of labour for the installation; that’s going to be the same.

A typical installation in an average home (24kw-30kw unit) is going to cost around £2,000. It’s hardly worth saving £200 on a low warranty boiler, when you then risk having to foot the bill for a new £2,000+ installation, just a few years down the line.

What’s The Minimum Recommended Warranty?

A boiler with a 5-year warranty is what we’d recommend as a minimum. If a brand is offering a 5-10+ year warranty, that’s suggesting they have confidence that their products have longevity.

A boiler with a 2-year warranty? Not so much…

But, if you have the budget to stretch to a boiler with a 10-year warranty, that’s advisable.

Boilers With A 10-year Warranty

Worcester Bosch 10-Year Guarantee

Depending on model, you’ll find various installers offering warranties of 5-10 years on Worcester Bosch boilers.

However, we’d suggest heading over to BOXT. They’re part owned by Bosch.


They not only offer preferential rates on Worcester Bosch boilers, they’re also able to offer them with a long warranty. At time of writing, all Worcester boilers listed on their website come with a 10-year warranty.

You can get a price for your new boiler on screen inclusive of that warranty by clicking here.

Other Boilers With A 10-Year Warranty

If you’d prefer product from a company asides from Worcester, or have a local installer that prefers to fit alternative brands, here are a few specific boiler models worth looking at:

  • Baxi Platinum
  • Ideal Vogue
  • Ideal Logic Max
  • Vaillant EcoTec Exclusive*
  • Vaillant EcoTec Plus*
  • Vaillant Green iQ*
  • Viessmann Vitodens 100-W (standard warranty is 5-years, but can be upgraded to 10, ask your installer for details).

You can get quotes for your new boiler from local installers here.

*The Vaillant boilers mentioned above need to be fitted by an “Advance” installer, and installed alongside a Boiler Protection kit, for Vaillant to honour the warranty.

What’s Next?

Thanks for reading our guide to the best boilers with a 10-year warranty.

Still got questions about getting a boiler installed?

Jump over to our boiler installation cost guide.

Or, drop us a line via our contact form, and we’ll get back to you as soon as possible.