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Gas boiler to heat pump
Hampshire · RG21

Gas boiler to heat pump in Basingstoke

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

Area
Hampshire
Postcode district
RG21
Nation
England
Guide price
From £9,800 inc VAT
Survey
Free for installation enquiries

Gas boiler to heat pump for Basingstoke homes

In Basingstoke, 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.

Households across Hampshire moving off gas can have a survey in Basingstoke that compares running costs on realistic assumptions. If your Basingstoke home still cooks on gas, we talk through whether to keep the supply or switch to an induction hob.

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.

  • Boilers that are old, unreliable or due for replacement
  • Combi owners who can find space for a hot water cylinder
  • Homes in England and Wales eligible for the Boiler Upgrade Scheme

What's included

  • System flush and radiator upgrades where the design calls for them
  • Removal of the gas boiler, flue and any loft tanks
  • Free survey with heat loss calculation and cylinder siting
  • Capping of the gas pipe at the boiler position where you are giving up gas
  • Heat pump cylinder, outdoor unit and weather compensation controls

Semi-detached and terraced houses in Basingstoke often have an airing cupboard that can be reused for a heat pump 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 Basingstoke 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.

Guide prices for replacing a gas boiler with a heat pump in Basingstoke

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

Guide prices for replacing a gas boiler with a heat pump in Basingstoke
HomeTypical sizeInstalled guide priceAfter £7,500 grant
1–2 bedroom flat or small terrace4–5 kW£9,800–£12,900£2,300–£5,400
2–3 bedroom terrace or semi5–7 kW£10,800–£13,900£3,300–£6,400
3 bedroom semi or small detached6–9 kW£12,350–£15,950£4,850–£8,450
4 bedroom detached8–12 kW£14,400–£18,550£6,900–£11,050
5+ bedroom or larger older house11–16 kW£17,000–£23,200£9,500–£15,700

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

Short winter days in Basingstoke and what they mean

7 h 52 minDaylight on the shortest day
16 h 36 minDaylight on the longest day
15°Noon sun height in December
51.26°NLatitude of Basingstoke

Basingstoke sees roughly 7 hours 52 minutes of daylight in late December against 16 hours 36 minutes in June. Milder southern winters suit heat pumps well, though the system is still sized for a cold snap rather than an average day.

The steps for replacing a gas boiler with a heat pump in Basingstoke

  1. Send your postcode and a few details, or use the guide price tool.
  2. A surveyor visits your Basingstoke home, measures every room and checks where the outdoor unit can go.
  3. You receive a heat loss design and a fixed written quote, with any grant shown where it applies.
  4. Installers fit the unit, cylinder and any radiator changes, typically over 2–4 days on site.
  5. The system is commissioned, set up with weather compensation and handed over with the paperwork.

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

Can you service a heat pump in Basingstoke that someone else installed?

Yes. We arrange servicing and repairs for most air source heat pumps in Basingstoke, whoever fitted them. Tell us the make and model when you book.

Do you cover Alton as well as Basingstoke?

Yes. We arrange surveys and installation in Alton, which is about 9 miles south-east of Basingstoke, and across Hampshire.

How long does a heat pump survey take in Basingstoke?

A home survey in Basingstoke usually takes one to two hours. The surveyor measures every heated room, checks windows, walls and radiators, and looks at where the outdoor unit and cylinder can go.

Do I need to replace the cylinder I already have?

Usually, yes. Older cylinders have a small internal coil designed for water from a boiler at around 60–70°C, and they cannot take in heat quickly enough at the lower temperatures a heat pump runs at. A heat pump cylinder has a larger coil. On its own, a cylinder supplied and fitted has a guide price of £1,200–£2,200, installed and including VAT, though it is normally part of the full system price.

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.

CallGet a quote