- Area
- East Sussex
- Postcode district
- TN6
- Nation
- England
- Guide price
- From £9,800 inc VAT
- Survey
- Free for installation enquiries
Oil and LPG boiler replacement in Crowborough: what to expect
The question for a Crowborough home is rarely whether a heat pump can work, but what needs to change to make it work well: radiator sizes, pipework, controls and where the unit goes.
For homes outside Crowborough reached by a long drive or narrow lane, delivery of the unit and cylinder is planned in advance. Owners across East Sussex can have oil tank removal arranged alongside a heat pump installation in Crowborough.
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
- Detached houses and bungalows with garden space for the unit
- Rural and village homes off the mains gas grid
What's included
- Removal of the oil or LPG boiler and flue
- Outdoor unit, heat pump cylinder, controls and radiator changes
- Oil tank draining and removal or making safe, as set out in your quote
- Help arranging LPG tank collection with your supplier
- MCS certificate and grant application in England and Wales where eligible
If your home near Crowborough is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries.
Grants and rules for heat pumps in England
Homes in Crowborough 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.
Oil and LPG boiler replacement prices in Crowborough
Guide prices for Crowborough and the rest of East 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 | £9,800–£12,900 | £800–£3,900 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,800–£13,900 | £1,800–£4,900 |
| 3 bedroom semi or small detached | 6–9 kW | £12,350–£15,950 | £3,350–£6,950 |
| 4 bedroom detached | 8–12 kW | £14,400–£18,550 | £5,400–£9,550 |
| 5+ bedroom or larger older house | 11–16 kW | £17,000–£23,200 | £8,000–£14,200 |
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.
How long is the heating season in Crowborough?
On the shortest day Crowborough gets about 7 hours 54 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.
From survey to switch-on in Crowborough
- Start online with a guide price or call us.
- A home survey in Crowborough gives us the room-by-room heat loss.
- Your written quote sets out the design, the price and the grant position where you live.
- Installation is booked for dates that suit you; most homes take 2–4 days on site.
- After commissioning you get a handover of the controls and settings, plus the certificates.
Replacing an oil or LPG boiler with a heat pump in Crowborough: questions
Where would the outdoor unit go on a Crowborough 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 Crowborough home.
What size heat pump does a Crowborough 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 Crowborough home.
How long does installation take in Crowborough?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Crowborough home states the expected time.
How much is the grant for replacing an oil boiler with a heat pump?
In England and Wales, the Boiler Upgrade Scheme grant is £9,000 when an air-to-water heat pump replaces oil or LPG heating, for installations from 21 July 2026 to 31 March 2027. Otherwise the standard £7,500 applies. The installer claims it and deducts it from your quote. Scotland's Home Energy Scotland funding works differently and includes extra for eligible rural homes; Northern Ireland has no dedicated homeowner scheme at present.
Will I need bigger radiators in an older cottage or farmhouse?
Often in some rooms, because thick solid walls and older windows lose more heat, and heat pumps work at lower water temperatures than oil boilers. The survey checks each room. Rooms with high ceilings or large windows are common candidates for a larger radiator. Where swapping radiators is impractical, a high-temperature unit can be considered, with lower efficiency as the trade-off.