The boiler is the heart of the home, working tirelessly to keep you and your family warm throughout the year. However, no matter how well you maintain it, there’s a limit to the number of hot showers and cozy living rooms it can provide. Eventually, you’ll need to replace and upgrade your boiler to a newer model. So, how long can you expect it to last?

how long does a boiler last

Average lifespan of a boiler

A good quality boiler which is well maintained, and professionally serviced every year, should last you between 10 and 15 years.

To determine when it’s time for a replacement, watch for rising monthly bills, which may indicate energy inefficiency. If repairs become more frequent, parts harder to find, or the boiler noisier, it might be time to consider an upgrade.

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Should I always replace my boiler after 15 years?

When your boiler approaches its life expectancy, it will likely also be out of warranty and guarantee.

While some boilers may continue functioning for 20 years or more, doing so poses a risk of high repair costs and unreliable performance. You don't want to depend on an aging boiler when winter arrives, nor face regular breakdowns without the security of a guarantee.

Additionally, boiler technology evolves rapidly. By the time your boiler reaches 15 years, newer models with advanced features and higher efficiency will be available. Upgrading could also lower your monthly bills.

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Why Worcester Bosch?

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Rated 'Excellent' across the UK

Tens of thousands of customers rate us excellent on Trustpilot.

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Top-rated combi boiler

For the 13th time we’ve been awarded a Which? Best Buy.

12 year guarantee

Up to 12 years peace of mind

All of our boilers come with a comprehensive, no quibble guarantee.

12 year guarantee boilers

Which boiler lasts the longest?

With many types of boilers available (combi, system, regular) and a choice of fuel types (gas, oil, LPG) – choosing the right one for your home is an important decision.

But when it comes to finding the longest lasting, it’s more about the quality of the manufacturer and how well you take care of it. There’s no connection between boiler type and lifespan, nor does the fuel type make a difference.

When you’re buying a boiler to go the distance, the only things you should look for is a reliable brand and a long guarantee.