New boiler cost in the UK (2026)
Replacing a boiler is rarely planned — it usually happens when the old one fails in winter, exactly when you're least able to compare prices calmly. Here's what a new boiler actually costs in the UK in 2026, supplied and fitted.
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Cost ranges are indicative 2026 UK averages compiled from trade rates and published industry data, to help you budget and sense-check quotes. They are general guidance, not a quotation or professional advice. Always obtain written quotes from qualified professionals. This page may contain affiliate links; we may earn a commission at no cost to you.