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Boiler Installation Cost

£1,400–£7,000typical UK range. Last updated October 2026.

Which? puts new boiler installation at around £1,400 to £7,000. Every installation is priced on survey.

What each option costs

TypeTypical costNotes
New boiler installation£1,400–£7,000Typical range

What affects the price

  • Boiler type and output
  • Moving the boiler or changing system type
  • Pipework, controls, cylinder, and flue work

What’s included

  • The boiler and installation stated in the quote
  • Testing and commissioning by an appropriately registered installer

Good to know

How long does it take? A simple installation typically takes four to six hours; system changes take longer.

Do I need one? Gas boilers must be fitted by a Gas Safe registered engineer.

Before you book, read how to check a gas engineer is Gas Safe registered.

How to pay less

  1. Compare the same boiler and scope
  2. Check disposal, filters, controls, and certification are itemised

Boiler installation cost in your city

Sources

  1. Which?, How to buy the best boiler (2026)
  2. Gas Safe Register, Find an Engineer

Questions people ask

How much does a new boiler installation cost?

Which? puts new boiler installation at around £1,400 to £7,000. Every installation is priced on survey.

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