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Gas boiler to heat pump
Bedfordshire · MK45

Gas boiler to heat pump in Flitwick

We cover Flitwick and the wider MK45 district for replacing a gas boiler with a heat pump. Start with a guide price online, then a free home survey for installation enquiries confirms the design.

Area
Bedfordshire
Postcode district
MK45
Nation
England
Guide price
From £9,700 inc VAT
Survey
Free for installation enquiries

Gas boiler to heat pump for Flitwick homes

Every property in Flitwick is different, so the design starts from measurements rather than a rule of thumb. That keeps the system the right size and the running costs predictable.

Rear gardens and side returns in Flitwick usually offer a sensible spot for the outdoor unit, checked for airflow and neighbours. If your Flitwick 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.

  • Combi owners who can find space for a hot water cylinder
  • Homes in England and Wales eligible for the Boiler Upgrade Scheme
  • Households ready to give up gas entirely and drop the standing charge

What's included

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

Households across Bedfordshire moving off gas can have a survey in Flitwick that compares running costs on realistic assumptions.

Grants and rules for heat pumps in England

England

Homes in Flitwick can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.

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 prices in Flitwick

Guide prices for Flitwick and the rest of Bedfordshire are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.

Gas boiler to heat pump prices in Flitwick
HomeTypical sizeInstalled guide priceAfter £7,500 grant
1–2 bedroom flat or small terrace4–5 kW£9,700–£12,750£2,200–£5,250
2–3 bedroom terrace or semi5–7 kW£10,700–£13,750£3,200–£6,250
3 bedroom semi or small detached6–9 kW£12,250–£15,800£4,750–£8,300
4 bedroom detached8–12 kW£14,300–£18,350£6,800–£10,850
5+ bedroom or larger older house11–16 kW£16,850–£22,950£9,350–£15,450

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

Designing for Flitwick's winters

7 h 44 minDaylight on the shortest day
16 h 44 minDaylight on the longest day
15°Noon sun height in December
52.00°NLatitude of Flitwick

Flitwick has about 7 hours 44 minutes of daylight at midwinter and 16 hours 44 minutes at midsummer. That swing matters if you pair a heat pump with solar panels: summer generation can cover much of the hot water, winter generation far less.

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

  1. Tell us about your home: postcode, property type and current heating.
  2. We book a survey in Flitwick; 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 Flitwick: questions

Where would the outdoor unit go on a Flitwick 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 Flitwick home.

Do you cover Ampthill as well as Flitwick?

Yes. We arrange surveys and installation in Ampthill, which is about 2 miles north of Flitwick, and across Bedfordshire.

How long does installation take in Flitwick?

Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Flitwick home states the expected time.

Can a heat pump replace a combi boiler?

Yes, but you need room for a hot water cylinder, because heat pumps store hot water rather than heating it on demand. Most homes find a space in a cupboard, utility room, garage or under the stairs, and compact or combined indoor units help where space is tight. The survey measures the options first, so you know where everything will go before you accept the quote.

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.

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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