When to Replace a Boiler: 6 Signs It's Time

December 1, 2021
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Your boiler is one of those objects in your home you tend to forget about until something goes wrong. Then it’s panic mode because, let’s face it, nobody wants to deal with no central heating and cold morning showers.

Whether your boiler has been showing signs of slowing down or it’s not as energy and cost effective as it once was, we’re here to help. In this article, we will be sharing when it’s time to replace your boiler and the 6 common signs to look out for.

How Long Does a Boiler Last for?

Unfortunately, there isn’t a one-size-fits-all answer to this question. Instead, it very much depends on the type of boiler you own, the boiler warranty, and how well your boiler has been maintained. If you’re wondering how often boilers should be replaced, the answer is not as often as you might think!

In UK homes, Combi boilers are typically the most popular choice and their average lifespan is around 15 years. Of course, this is just a guideline and you may be able to extend your boilers lifespan through regular and professional servicing.

Top tip: If your boiler is 15 years or older, even if it is still performing well, this is a good indicator it’s time to consider a replacement.

How Long Does it Take to Replace a Boiler?

On average, it can take anywhere between one to three days to replace a boiler in your property. This might seem like a long time, however there are a lot of variants that can impact timescale such as, which boiler replacement you choose, the complexity of the new boiler installation, the expertise of the engineer, and the state of your existing boiler.

Top tip: if you opt for a new combi boiler, you will benefit from a faster installation time.

6 Common Signs Your Boiler Needs Replacing

Knowing when it’s time to replace your boiler can be tricky. If you replace your boiler too soon, you could be paying out unnecessarily. Whereas, if you leave your boiler replacement too long, you could risk damage to your home due to leaking pipes or broken heating systems that could be more costly to fix.  

Thankfully, it is not uncommon for boilers to show signs that it’s time for a replacement. Knowing what to look for saves a lot of stress in the long run. So, below we have shared the 6 common signs your boiler needs replacing.

  1. Your Boiler Frequently Breaks Down
  2. Does your boiler regularly cut out during the day or randomly stop working in the evenings? You’ll probably notice this more in the winter months because your water won’t heat up and your house will be freezing.
  3. Sometimes, your boiler just needs a service. However, if you have called out the gas engineer more than once already this year, and your boiler still isn’t working properly, it might be time to invest in a replacement.
  4. Your Boiler is Leaking
  5. Let’s get one thing straight: your boiler shouldn’t leak. Ever. A leaking boiler can be a real problem. A leak can cause your boiler to have an electrical short-circuit. Leaks can also cause costly water and structural damage to your property, if left unchecked.
  6. If your boiler is leaking, it is possible there is a problem or a break with an internal valve or seal. Often, leaks can be fixed by an engineer who can carry out the necessary repairs. However, if it is not possible to restore your boiler to its former glory, it might be time to organise a replacement.
  7. Your Boiler is Old
  8. Even if your boiler is still working well, if your boiler has reached the ripe old age of 15, it’s time to consider a replacement. The reason for this is that older boiler systems tend to be less efficient and this can result in rising energy bills, low water pressure, and more costly and frequent repairs.
  9. Replacing your old boiler with a newer model will allow you to enjoy a system that is more energy efficient, eco-friendly, and cost-effective for your needs.
  10. Your Energy Bills Keep Rising
  11. Have you noticed that your energy bills seem to be creeping up each month? When we talk about the efficiency of boiler systems, we’re talking about your household bills. Put simply, a less efficient boiler is more expensive to run.
  12. Rising energy bills are one of the most common signs your boiler needs replacing for a newer model. If you want to save money on your energy bills, investing in a boiler replacement is the way to go.
  13. Your Boiler Smells Odd
  14. Strange smells around the house are never pleasant. However, when your boiler starts to smell this is a clear indication there is a problem. The smell could be the result of a gas leak that could pose a serious risk to your health.
  15. It is possible your boiler could be leaking carbon monoxide. This is extremely dangerous and can be fatal. Carbon monoxide poisoning can cause symptoms such as headaches, shortness of breath, nausea, and unconsciousness. Carbon monoxide is an odourless gas, so you have to look out for the physical signs. These include:
  16. Dark soot on or around your boiler
  17. Increased condensation on your windows
  18. The boiler flame burning yellow instead of blue
  19. The pilot light frequently turning off
  20. We recommend buying a carbon monoxide alarm so that you don’t have to worry about missing the physical signs. If you do notice your boiler is emitting strange smells, immediately turn your boiler off and call our team. We will be able to advise you on the best next steps.
  21. Your Water Pressure is Fluctuating
  22. Have you ever turned on the tap to wash the dishes but the water never gets hot? Or have you taken a shower that fluctuates in temperature every few minutes? These fluctuations are typically caused by low water pressure and can be a sign that your boiler isn’t working properly.
  23. You can get your boiler repressurised. However, if that doesn’t make any difference and you’re still experiencing the same problem, it’s time to consider a replacement.

Final Words

Your boiler contributes a lot to the comfort of your home and when things start going wrong, you tend to notice. Now that you know the signs to look out for, you can replace your boiler at the right time.

If you are considering a boiler replacement and you would like to find out more about our services, our friendly team would be happy to help. Get in touch today. We would be happy to answer your questions.

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