# Boiler replacement costs and grants

Separate a replacement quote from heat pump grant eligibility.

Updated 2026-11-10. Also on the [web page](https://boilerpros.fyi/guides/boiler-replacement-costs-and-grants).

A replacement quote needs a property assessment and a clear list of work. The boiler price alone does not explain the cost of moving pipework, changing controls or altering a flue.

## A published UK cost example

The British Gas new-boiler page showed a representative finance example with a cash price of £2,503 when fetched on 2026-11-10. This is a supplier example, not a starting price or a market-wide average. It is not a quote for your address. [British Gas, checked 2026-11-10.]

Ask for the cash total separately from any finance total. Compare boiler model, installation work, flue route, controls, system treatment, disposal, warranty conditions and exclusions. Ask whether tax and any extra visits are included. Get changes to the agreed scope in writing.

For a US or Canadian property, obtain local written quotes. Do not turn this UK example into a local estimate by currency conversion.

## Boiler Upgrade Scheme

On 2026-11-10, GOV.UK listed grants of £7,500 towards an air source heat pump and £7,500 towards a ground source heat pump. It also listed £5,000 towards a biomass boiler and £2,500 towards an air-to-air heat pump. These are scheme amounts for eligible installations. They are not gas boiler replacement discounts. [GOV.UK, checked 2026-11-10.]

The scheme covers England and Wales. Use the official eligibility pages for your property and proposed system. Do not assume the same programme applies in Scotland, Northern Ireland, the US or Canada. [GOV.UK scheme overview, checked 2026-11-10.]

The fetched amount page also states that a hybrid heat pump system is not eligible. It describes extra conditions and possible additional support for some properties. Ask an installer to explain the current eligibility and application steps before accepting a quote. Do not count a grant as approved funding until that is confirmed. [GOV.UK, checked 2026-11-10.]

## Choose a scope before comparing totals

Ask the engineer to explain the existing boiler's faults and whether repair is practical. Request separate repair and replacement scopes if both are offered. For a heat pump proposal, ask for a property assessment and system design rather than assuming a gas boiler can simply be swapped for another heat source.

Save the final quote, equipment details, installation paperwork and service instructions. Ask who handles defects and who will service the new system.

## Sources

All sources below were fetched on 2026-11-10. This is the date checked, not a claim about the publication date. Recheck current terms before booking.

- [British Gas, New boilers](https://www.britishgas.co.uk/home-services/boilers-and-heating/new-boilers.html), checked 2026-11-10.
- [GOV.UK, Boiler Upgrade Scheme: what you can get](https://www.gov.uk/apply-boiler-upgrade-scheme/what-you-can-get), checked 2026-11-10.

- [GOV.UK, Boiler Upgrade Scheme overview](https://www.gov.uk/apply-boiler-upgrade-scheme), checked 2026-11-10.

## Questions

### Does the Boiler Upgrade Scheme pay for a replacement gas boiler?

The fetched scheme page lists eligible heat pumps and biomass boilers, not a like-for-like gas boiler grant.