Air source heat pumps, surveyed, designed and installed· Free home survey for installation enquiries
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Gas boiler to heat pump
Northamptonshire · NN13

Gas boiler to heat pump in Brackley

Looking into replacing a gas boiler with a heat pump for a home in Brackley? We look at the whole heating system — emitters, pipework, cylinder space and controls — so the heat pump can run efficiently.

Area
Northamptonshire
Postcode district
NN13
Nation
England
Guide price
From £9,500 inc VAT
Survey
Free for installation enquiries

Before you book: replacing a gas boiler with a heat pump in Brackley

In Brackley, as anywhere in the UK, the heat pumps that perform well are the ones designed around low flow temperatures and sized from a proper heat loss calculation.

Rear gardens and side returns in Brackley usually offer a sensible spot for the outdoor unit, checked for airflow and neighbours. Households across Northamptonshire moving off gas can have a survey in Brackley that compares running costs on realistic assumptions.

Moving from mains gas to a heat pump means finding cylinder space, deciding what happens to the gas supply and comparing running costs on realistic assumptions.

  • Households ready to give up gas entirely and drop the standing charge
  • System or regular boiler homes with an existing airing cupboard
  • Homes in England and Wales eligible for the Boiler Upgrade Scheme

What's included

  • Removal of the gas boiler, flue and any loft tanks
  • Commissioning, MCS certificate and grant application in England and Wales where eligible
  • Heat pump cylinder, outdoor unit and weather compensation controls
  • System flush and radiator upgrades where the design calls for them
  • Free survey with heat loss calculation and cylinder siting

Many gas-heated homes in Brackley have a combi boiler in the kitchen, so the survey starts by finding the right place for a cylinder.

Grants and rules for heat pumps in England

England

In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your Brackley quote.

Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.

Gas boiler to heat pump costs around Brackley

The ranges below are typical installed prices for homes in Northamptonshire, including VAT. A survey sets the exact figure, because two similar-looking houses in Brackley can need quite different radiators and pipework.

Gas boiler to heat pump costs around Brackley
HomeTypical sizeInstalled guide priceAfter £7,500 grant
1–2 bedroom flat or small terrace4–5 kW£9,500–£12,500£2,000–£5,000
2–3 bedroom terrace or semi5–7 kW£10,500–£13,500£3,000–£6,000
3 bedroom semi or small detached6–9 kW£12,000–£15,500£4,500–£8,000
4 bedroom detached8–12 kW£14,000–£18,000£6,500–£10,500
5+ bedroom or larger older house11–16 kW£16,500–£22,500£9,000–£15,000

Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.

Winter daylight and heating in Brackley

7 h 44 minDaylight on the shortest day
16 h 44 minDaylight on the longest day
15°Noon sun height in December
52.03°NLatitude of Brackley

On the shortest day Brackley gets about 7 hours 44 minutes of daylight, with the noon sun around 15° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.

What happens after you enquire in Brackley?

  1. Tell us about your home: postcode, property type and current heating.
  2. We book a survey in Brackley; the surveyor measures rooms, windows and radiators and looks at cylinder space.
  3. The design and quote arrive in writing, including radiator changes and the outdoor unit position.
  4. On installation days the old system is removed and the new one fitted and filled.
  5. We commission the heat pump, show you the controls and register the installation.

Replacing a gas boiler with a heat pump in Brackley: questions

Do you cover Towcester as well as Brackley?

Yes. We arrange surveys and installation in Towcester, which is about 10 miles north-east of Brackley, and across Northamptonshire.

Where would the outdoor unit go on a Brackley house?

Usually at the side or rear, on a level base with space around it for airflow and servicing, away from bedroom windows where possible. The surveyor checks positions at your Brackley home.

How soon can you survey a home in Brackley?

Survey dates depend on how busy installers are in Northamptonshire. We offer the next available dates when you enquire and confirm them in writing.

What if my gas boiler is fairly new?

A newer boiler can still be replaced, but the timing is worth weighing. Some owners switch when the boiler needs a major repair; others prefer to plan the change for a convenient time. Across the UK, heat pump installation is zero-rated for VAT until 31 March 2027. A hybrid system, which keeps the boiler alongside a heat pump, is another option, though it is not eligible for the Boiler Upgrade Scheme in England and Wales.

Should I have my gas meter removed?

If gas is used for nothing else, removing the meter ends the gas standing charge, which is about £108 a year at the October to December 2026 price cap. If you still cook on gas or have a gas fire, you will need to keep the supply. Meter removal is arranged through your gas supplier, usually once the heat pump is running; the pipe at the boiler position is capped during the installation.

Ready to price your heat pump?

Use the guide price tool, or book a free home survey and fixed written quote.

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