- Area
- West Sussex
- Postcode district
- RH19
- Nation
- England
- Guide price
- From £9,900 inc VAT
- Survey
- Free for installation enquiries
What to know about replacing an oil or LPG boiler with a heat pump in East Grinstead
In East Grinstead, 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.
Owners across West Sussex can have oil tank removal arranged alongside a heat pump installation in East Grinstead. Rural properties near East Grinstead usually have garden space for the outdoor unit, sited away from windows and sheltered where possible.
Off-gas homes have a lot to plan when switching to a heat pump: the fuel tank, older walls, rural power supplies and higher heat loss.
- Older oil boilers nearing the end of their life
- Eligible homes in England and Wales within the higher grant window
- Rural and village homes off the mains gas grid
What's included
- Removal of the oil or LPG boiler and flue
- Network operator notification and electrical connection
- Help arranging LPG tank collection with your supplier
- Outdoor unit, heat pump cylinder, controls and radiator changes
- MCS certificate and grant application in England and Wales where eligible
Cottages and farmhouses in and around East Grinstead often have solid walls, so the survey looks closely at construction and draughts.
Grants and rules for heat pumps in 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 East Grinstead 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.
Oil and LPG boiler replacement prices in East Grinstead
Guide prices for East Grinstead and the rest of West Sussex 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.
| Home | Typical size | Installed guide price | After £9,000 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,900–£13,000 | £900–£4,000 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,900–£14,050 | £1,900–£5,050 |
| 3 bedroom semi or small detached | 6–9 kW | £12,500–£16,100 | £3,500–£7,100 |
| 4 bedroom detached | 8–12 kW | £14,550–£18,700 | £5,550–£9,700 |
| 5+ bedroom or larger older house | 11–16 kW | £17,150–£23,400 | £8,150–£14,400 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning. The £9,000 Boiler Upgrade Scheme figure applies to oil and LPG replacements in England and Wales installed from 21 July 2026 to 31 March 2027.
Winter daylight and heating in East Grinstead
On the shortest day East Grinstead gets about 7 hours 53 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.
The steps for replacing an oil or LPG boiler with a heat pump in East Grinstead
- Tell us about your home: postcode, property type and current heating.
- We book a survey in East Grinstead; the surveyor measures rooms, windows and radiators and looks at cylinder space.
- The design and quote arrive in writing, including radiator changes and the outdoor unit position.
- On installation days the old system is removed and the new one fitted and filled.
- We commission the heat pump, show you the controls and register the installation.
Replacing an oil or LPG boiler with a heat pump in East Grinstead: questions
Do I need new radiators for a heat pump in East Grinstead?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your East Grinstead home gives a room-by-room list.
What size heat pump does an East Grinstead home need?
It depends on the heat loss, not the postcode. As a rough guide, a 3 bedroom semi often needs 6–9 kW, but the room-by-room survey sets the actual size for your East Grinstead home.
Do you cover Crawley as well as East Grinstead?
Yes. We arrange surveys and installation in Crawley, which is about 8 miles west of East Grinstead, and across West Sussex.
What happens with a leased LPG tank?
Leased LPG tanks belong to the supplier, so the supplier arranges collection. Check your contract for notice periods and any charges before you fix a date. We time the switchover so you are not left without heating, and once the heat pump is commissioned the supplier can empty and remove the tank. Bottled LPG cylinders are simply returned.
Is a heat pump cheaper to run than oil?
It depends on oil prices, your home's insulation, the flow temperature and your electricity tariff, so there is no single answer. At the October to December 2026 price cap, a heat pump with a seasonal efficiency of 3.0 delivers heat for about 8.8p per kWh, and at 3.5 about 7.5p. Compare that with your oil cost per kWh of heat, allowing for your boiler's efficiency; the survey estimate gives a figure for your home.