How to tell if you need a new boiler

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An old boiler is not just inefficient, causing your bills to escalate, but if it isn’t working properly, it could be a potential health and safety hazard. Here are some tell-tale signs that indicate you might need a new boiler.

A cold house

If your house feels cold despite having the heating on, this could show that your boiler is inefficient. Equally, if your bills are rising, your boiler could be gobbling up fuel without doing its job properly.


If your boiler is over 10 years old, it could be time to consider an upgrade. This is especially the case if spare parts for the boiler are becoming increasingly harder to source.

Frequent repairs

If your boiler is in need of regular repairs, or you have to keep resetting it or topping up the pressure, it isn’t functioning effectively. It could be time to consider a new boiler.

Unusual noises or smells

If you notice strange noises coming from your boiler, such as hissing, popping or knocking sounds, it might mean the pump isn’t working properly, the bearings of the fan are worn out or there is uneven water distribution. It may be more economical to get a new boiler than getting it constantly repaired.

You shouldn’t notice any smells coming from your boiler, but if you do, the boiler may not be burning as it should be. If carbon monoxide is leaking from your boiler, this won’t give off a smell, but it can be fatal, so get a carbon monoxide detector.

Water problems

If there is a change in the water temperature or the hot water won’t work unless the heating is on, it’s time to consider a new boiler. Certainly, if water leaks from your boiler, this could indicate a serious problem.

Getting a new boiler may seem costly and inconvenient, but you could save money in the long run, and it will prove more efficient and safer than an older model. You may even be able to qualify for a heating grant or a free boiler, so upgrading may be much easier than you had thought.