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Boilers · Last reviewed September 2026

Thinking about a new boiler?

Compare your options, see typical costs and what funding may exist, then send an enquiry if you would like an installer to contact you.

Send a boiler enquiry →

Free to enquire · No obligation · UK Energy Partnership is run by Harber Glaves Trading Ltd and does not install boilers

Your main options

Typical costs are guides, not quotes. Your survey and quotes will differ.

Pay for a new gas boiler

Around £2,500 to £4,000 for a like-for-like combi

  • Around £3,000 for a new system or regular boiler, and around £4,000 to switch one of those to a combi.
  • Gas work must be done by a Gas Safe registered engineer.
  • There is no ban on replacing a gas boiler in an existing home. Gas boilers are charged at the standard rate of VAT.

Source: Checkatrade new boiler cost guide, March 2026.

Switch to a heat pump

Typically £11,100 to £15,600 installed, before any grant

  • Boiler Upgrade Scheme (England and Wales): £7,500 off, or £9,000 for homes heated by oil or LPG with no mains gas (until 31 March 2027).
  • On a standard electricity tariff, running costs can be similar to or higher than a new gas boiler. Savings are larger when replacing oil, LPG or electric heating.
  • No VAT on installation until 31 March 2027.

Sources: DESNZ Boiler Upgrade Scheme statistics (middle half of installs, April to June 2026); Energy Saving Trust, July 2026 prices.

Check for funded help

Depends on your circumstances

  • ECO4 can sometimes fund a heating upgrade or a broken boiler replacement for eligible households, under strict rules, until 31 December 2026. It is not guaranteed and you may be asked to contribute.
  • In England, Warm Homes: Local Grant can fund low-carbon heating, such as a heat pump, through your council.
  • In Wales, Warm Homes Nest can include a boiler repair or replacement for eligible lower-income households.

Sources: Ofgem ECO4 guidance; GOV.UK Warm Homes: Local Grant; gov.wales Warm Homes Nest.

Signs it may be time to replace

  • It breaks down often, or repairs are getting expensive
  • Parts are no longer available for your model
  • Radiators take much longer to heat up than they used to
  • An engineer has found a safety problem they cannot fix

Before you agree to anything

  • Ask whether a repair would be cheaper
  • Get two or three written, itemised quotes
  • Check the engineer on the Gas Safe Register
  • Ask what warranty comes with the boiler and what it requires, such as annual servicing

How an enquiry works

1

Send an enquiry

Two short screens: what you need and your contact details. It is free.

2

We pass it on

Better Home Hub, which runs this site, looks for an installer covering your area. They may contact you to arrange a survey and quote.

3

You decide

Compare written quotes and take your time. There is no obligation to go ahead.

Boiler questions

Can I get a free boiler replacement?

Not usually. There is no general free boiler scheme. ECO4 can fund a heating upgrade or replace a broken boiler for some households on certain benefits or lower incomes, where strict rules are met, and it ends on 31 December 2026. In Wales, Warm Homes Nest can include a boiler repair or replacement for eligible households. Check the official scheme before relying on funding.

How much does a new boiler cost?

As a guide, a like-for-like combi replacement is usually £2,500 to £4,000 supplied and fitted, and a new system or regular boiler around £3,000. Switching from a system or regular boiler to a combi is around £4,000 (Checkatrade, March 2026). Your home, the boiler and any pipework changes affect the price.

Should I consider a heat pump instead?

It is worth comparing. A heat pump produces around three units of heat for each unit of electricity it uses. On a standard tariff, running costs against a new gas boiler can be slightly higher or lower; savings are clearer when replacing oil, LPG or electric heating. In England and Wales the Boiler Upgrade Scheme takes £7,500 off an air or ground source heat pump (£9,000 for eligible off-gas homes until 31 March 2027).

How long does installation take?

A straight swap in the same place is often done in a day or two. Moving the boiler or changing its type takes longer. The installer will confirm after a survey, and you may be without heating and hot water while the work is done.

Scheme rules checked 13 September 2026. UK Energy Partnership is run by Harber Glaves Trading Ltd. We are not a government body and cannot decide who gets funding; see grants and funding for the official sources.

Want an installer to contact you?

Tell us about your home in two short screens. Better Home Hub will look for an installer who covers your area.

Send a boiler enquiry