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