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Answer

When should you replace your boiler?

Replace a boiler that is over ~12 years old, breaks down often, leaks or is inefficient — and weigh a grant-backed heat pump instead.

In more detail

A new A-rated boiler or a heat pump both beat an old, inefficient unit on bills.

Work it out for your home: try our free heat pump vs gas running-cost tool

See the full boilers & heating guide →

2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.

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