How much does a new boiler cost in the UK? (2026)
The cost of a new boiler in the UK typically ranges from £1,500 to £4,500 fully installed. Most homeowners with a 3-bedroom home pay around £2,000–£3,000 for a mid-range combi boiler fitted by a Gas Safe registered engineer.
The calculator above gives you a personalised estimate based on your home size, boiler type, brand preference, and location. For a full breakdown of what affects boiler prices, read our complete new boiler cost guide.
Why do prices vary so much?
The biggest variables are boiler brand (budget brands like Alpha cost 30–40% less than premium brands like Worcester Bosch), property size (larger homes need higher-output boilers), and location (London labour rates run 20–25% above the national average).
The type of installation also matters — a straight combi-for-combi swap in the same location is the cheapest option. Moving the boiler or switching from a conventional system to a combi adds £300–£1,000+ for extra pipework.
How to get the best price
The most effective way to avoid overpaying is to get at least three quotes from Gas Safe registered engineers in your area. Prices for the same boiler from different installers can vary by £500–£1,500 on a typical job.
Post your boiler job on GetQuickHelp and get contacted by qualified local engineers — free, with no obligation to accept any quote.