Consider installing double glazing

By double glazing your windows, you could cut the heat lost through them by half. For an average household, that's an annual saving of around £90 per year. If every home in the UK that needed double glazing had it fitted, we would save the equivalent of 800,000 homes' carbon emissions. However, if double glazing seems a costly prospect, consider secondary glazing panels which can be fitted to your existing windows.

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