- Area
- Berkshire
- Postcode district
- RG45
- Nation
- England
- Guide price
- From £10,050 inc VAT
- Survey
- Free for installation enquiries
Gas boiler to heat pump in Crowthorne: what to expect
Homes around Crowthorne range from older terraces to newer estates, and each needs a different design. That is why we survey before we quote.
Rear gardens and side returns in Crowthorne usually offer a sensible spot for the outdoor unit, checked for airflow and neighbours. Many gas-heated homes in Crowthorne have a combi boiler in the kitchen, so the survey starts by finding the right place for a cylinder.
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.
- Homes in England and Wales eligible for the Boiler Upgrade Scheme
- Boilers that are old, unreliable or due for replacement
- System or regular boiler homes with an existing airing cupboard
What's included
- Removal of the gas boiler, flue and any loft tanks
- Heat pump cylinder, outdoor unit and weather compensation controls
- Commissioning, MCS certificate and grant application in England and Wales where eligible
- Capping of the gas pipe at the boiler position where you are giving up gas
- Free survey with heat loss calculation and cylinder siting
Households across Berkshire moving off gas can have a survey in Crowthorne that compares running costs on realistic assumptions.
Grants and rules for heat pumps in England
Homes in Crowthorne 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.
What to budget for replacing a gas boiler with a heat pump in Crowthorne
These are guide prices for Berkshire, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £10,050–£13,250 | £2,550–£5,750 |
| 2–3 bedroom terrace or semi | 5–7 kW | £11,150–£14,300 | £3,650–£6,800 |
| 3 bedroom semi or small detached | 6–9 kW | £12,700–£16,450 | £5,200–£8,950 |
| 4 bedroom detached | 8–12 kW | £14,850–£19,100 | £7,350–£11,600 |
| 5+ bedroom or larger older house | 11–16 kW | £17,500–£23,850 | £10,000–£16,350 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Short winter days in Crowthorne and what they mean
On the shortest day Crowthorne gets about 7 hours 51 minutes of daylight, and the winter sun reaches only around 15° above the horizon at noon. Winters this far south are milder than in most of the UK, which helps a heat pump run at low flow temperatures for much of the season.
What happens after you enquire in Crowthorne?
- Send your postcode and a few details, or use the guide price tool.
- A surveyor visits your Crowthorne home, measures every room and checks where the outdoor unit can go.
- You receive a heat loss design and a fixed written quote, with any grant shown where it applies.
- Installers fit the unit, cylinder and any radiator changes, typically over 2–4 days on site.
- The system is commissioned, set up with weather compensation and handed over with the paperwork.
Replacing a gas boiler with a heat pump in Crowthorne: questions
How long does a heat pump survey take in Crowthorne?
A home survey in Crowthorne 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.
Where would the outdoor unit go on a Crowthorne 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 Crowthorne home.
How long does installation take in Crowthorne?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Crowthorne home states the expected time.
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.
Is there a grant to replace a gas boiler with a heat pump?
In England and Wales, the Boiler Upgrade Scheme gives £7,500 towards an air-to-water heat pump that replaces a gas boiler, for eligible owners of existing homes. The MCS-certified installer applies to Ofgem and deducts the grant from your quote, and Ofgem contacts you to confirm. Scotland has separate Home Energy Scotland funding, and Northern Ireland has no dedicated homeowner grant at present.