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How long do boilers last?

An old boiler with corroding pipes to show how long a boiler lasts

In our experience, boilers can last anywhere between 10 and 15 years old. The lifespan of your boiler can depend on a number of factors, including the scale at which it is used and the model and brand of system that you select to have installed.


Table of contents

  1. How long does a combi boiler last?
  2. Why replace an old boiler?
  3. Signs you may need a new boiler replacement
  4. Get a new boiler from BOXT

How long does a combi boiler last?

As with most boilers, modern combi boilers should last up to 15 years if kept well maintained with an annual service. This can depend on the quality and chosen model of your boiler, so be sure to choose your boiler model carefully and read reviews to check for regular faults.

Boilers generally often come with a warranty or guarantee, which protect you against the cost of faults or repairs. These warranties only remain valid if you have an up to date boiler service history, and usually only cover a certain number of years. Always check your warranty details before making a decision about updating your old boiler.

Why replace an old boiler?

Your boiler plays a key role in your household. It keeps you and your family warm and can influence how comfortable you are in your home. Below we list a few factors that you should consider when thinking about whether your boiler can meet your needs long-term.

  • Boilers may become less efficient over time. We usually recommend that you start considering a new boiler when your current system is approaching 10 years old. An old and inefficient boiler may have to work harder to heat your home; whereas a new, efficient boiler could potentially save you up to £540 each year in energy bills*.
  • Although some boilers may far outlive a typical life expectancy, parts and spares may become unobtainable for older boiler models which may lead to a bigger problem if a repair is needed.
  • Technology in the boiler industry is constantly developing, so a new boiler could not only be more energy-efficient, but could also incorporate an array of new features into your home. A new system could potentially be easier to use and could even look more aesthetically pleasing in your home.

Lastly, if the conditions of your home have changed significantly since your boiler was installed, the boiler may no longer be suitable to perform efficiently – it could struggle to supply the amount of heat and hot water that you require.

For example, if you have had added more bathrooms or rooms through a house extension or loft conversion, then your boiler may require more power to operate to your new demands. Overworking a small boiler which was not designed to cope with these new high demands may cause the boiler to degrade more rapidly than usual.

If you have had or are considering additional bathrooms, rooms or radiators in your home, it is best to keep in mind the impact this could have on your boiler and central heating system.

Signs you may need a new boiler replacement

Older boilers often need more regular repairs and can provide less reliable heating and hot water if not maintained and serviced. Some key signs to look out for include:

  • A noisy boiler
  • Water and radiators taking longer to heat up
  • Boiler leaks
  • Regular breakdowns
  • Strange smell coming from the boiler

Find out more about the tell-tale signs you may need a new boiler in our guide.

Get a new boiler from BOXT

If your boiler is showing its age, you may be thinking about getting a new one. We’re working together with BOXT, one of the largest boiler installation companies in the UK, to help you find the best boiler for your home.

BOXT makes choosing the perfect new boiler for your home easy with a fixed price quote on your screen in just 90 seconds.

* Source: energysavingtrust.org.uk Saving calculated when replacing G rated with A rated boiler in a detached house. Annual saving of up to £540 has been divided by 12 months to illustrate the monthly amount.

 

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About the author

Chris became a fully qualified Gas Engineer in 2009 and has been with HomeServe since 2016. Chris hung up his tool bag in 2018 to concentrate on ways to use technology to help Customers.

He currently heads up the Self Fix team who are able to get Customers back up and running over the phone without the need for an Engineer.

He is kept busy looking after his two daughters and is a lover of all things CrossFit, Yoga and Ice Baths!

“I chose to work at HomeServe after running a small business. I wanted to be able to help people on a greater scale and HomeServe has helped me achieve that.”

Qualifications

Gas Safe registered, CCN1, CPA1, CENWAT, CKR1, HTR1, NVQ Level 3 Plumbing & Heating

Years qualified

Since 2009
Read more

Share this post

About the author

Chris became a fully qualified Gas Engineer in 2009 and has been with HomeServe since 2016. Chris hung up his tool bag in 2018 to concentrate on ways to use technology to help Customers.

He currently heads up the Self Fix team who are able to get Customers back up and running over the phone without the need for an Engineer.

He is kept busy looking after his two daughters and is a lover of all things CrossFit, Yoga and Ice Baths!

“I chose to work at HomeServe after running a small business. I wanted to be able to help people on a greater scale and HomeServe has helped me achieve that.”

Qualifications

Gas Safe registered, CCN1, CPA1, CENWAT, CKR1, HTR1, NVQ Level 3 Plumbing & Heating

Years qualified

Since 2009
Read more

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