- Area
- West Sussex
- Postcode district
- GU28
- 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 Petworth
Every property in Petworth 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.
If your home near Petworth is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries. Bungalows and detached houses near Petworth running on LPG can move to a heat pump, with the tank collected by the supplier.
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.
- Detached houses and bungalows with garden space for the unit
- Rural and village homes off the mains gas grid
- Owners tired of fuel deliveries and tank maintenance
What's included
- Outdoor unit, heat pump cylinder, controls and radiator changes
- Free survey with a detailed heat loss calculation for older construction
- Help arranging LPG tank collection with your supplier
- Network operator notification and electrical connection
- Removal of the oil or LPG boiler and flue
Owners across West Sussex can have oil tank removal arranged alongside a heat pump installation in Petworth.
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 Petworth quote.
There is no VAT on installing a heat pump anywhere in the UK until 31 March 2027. In England most houses can have an air source heat pump under permitted development, provided the unit meets the MCS noise and siting standards; the old 1 m boundary limit was removed on 29 May 2025. We flag listed buildings, flats and sensitive conservation-area positions at survey.
What to budget for replacing an oil or LPG boiler with a heat pump in Petworth
Here are typical prices for replacing an oil or LPG boiler with a heat pump in West Sussex, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.
| 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 Petworth
On the shortest day Petworth gets about 7 hours 55 minutes of daylight, and the winter sun reaches only around 16° 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.
How installation works in Petworth
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Petworth; 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 Petworth: questions
How long does installation take in Petworth?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Petworth home states the expected time.
Do I need new radiators for a heat pump in Petworth?
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 Petworth home gives a room-by-room list.
How soon can you survey a home in Petworth?
Survey dates depend on how busy installers are in West Sussex. We offer the next available dates when you enquire and confirm them in writing.
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.
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.