HeatingForce is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

Boiler Warranty: The Best 10-Year Warranty Boilers in 2021

If you’re looking for a new boiler that won’t break the bank and will last for a long while, the quick guide below will help you shortlist all boiler brands and models that have great warranties.

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

Why A 10 Year Warranty Boiler?

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 Guarantee

Based on our extensive research in the market, these are the top boiler brands to deliver the best guarantee.

#1. Worcester Bosch Guarantee: 10 Years

Depending on the model, you’ll find various installers offering warranties of 5-10 years on Worcester Bosch boilers. This is not only extremely competitive it also shows the confidence Worcester Bosch has in the quality of their products.

But how do you get the 10-years Worcester warranty? We suggest heading over to HEATABLE — one of the most reliable online boiler installation company.

Worcester Bosch Greenstar i from Heatable

They not only offer the best rates on Worcester Bosch boilers (starting at £1,770 for the Greenstar model) , but they’re also able to offer them with a long warranty. At the 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. Simply fill in the form and in less than 90 seconds you’ll be seeing all their offers.

#2. Viessmann Boiler: 10 Year Warranty

Another strong name in boiler manufacturing is Viessmann. The German company is one of the biggest players in the European market not only because they sell a lot of boilers every year, but because they built them to last. And that’s something most installers will tell you.

Viessmann Vitodens 050-W from Heatable

Viessmann boilers come with a 10 year warranty if acquired from HEATABLE. Prices start at £1,670 for the Viessmann Vitodens 050-W — a popular Which? Best Buy boiler.

All you need to do is fill out a few details about your home and the HEATABLE calculator will tell you exactly what you need. Just give it 90-seconds and you will see what options there are for your home.

#3. Other Boilers With A 10-Year Warranty

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

  • Baxi 600, the Baxi duo-tec, the Baxi EcoBlue range or the Baxi Platinum
  • Ideal Vogue and Ideal Vogue Max
  • Vaillant EcoTec Exclusive, EcoTec Plus and Green iQ*

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.

Avoid Expensive Breakdown Costs
Boiler Replacement Promise: If it's under 7 years old and we can’t repair it, we’ll replace it.
Try YourRepair. From £9/mo
All plans include: annual boiler service, all parts and labour, unlimited support and 24hr helpline.

Fix things and tutorials

Get a Boiler on Finance

The best pay monthly packages available

Read guide
Heatable Boiler Replacement

Want a new boiler from HEATABLE?

Read guide
WarmZilla Boiler Replacement

Want a new boiler from WARMZILLA?

Read guide
Boiler Installation Costs

Confused about new boilers and their costs?

Read guide