- Area
- Bristol
- Postcode district
- BS9
- Nation
- England
- Guide price
- From £9,700 inc VAT
- Survey
- Free for installation enquiries
What to know about replacing an oil or LPG boiler with a heat pump in Westbury-on-Trym
In Westbury-on-Trym, 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 Bristol can have oil tank removal arranged alongside a heat pump installation in Westbury-on-Trym. If your home near Westbury-on-Trym is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries.
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.
- Eligible homes in England and Wales within the higher grant window
- Owners tired of fuel deliveries and tank maintenance
- Older oil boilers nearing the end of their life
What's included
- MCS certificate and grant application in England and Wales where eligible
- Network operator notification and electrical connection
- Removal of the oil or LPG boiler and flue
- Oil tank draining and removal or making safe, as set out in your quote
- Free survey with a detailed heat loss calculation for older construction
Bungalows and detached houses near Westbury-on-Trym running on LPG can move to a heat pump, with the tank collected by the supplier.
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 Westbury-on-Trym 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.
What to budget for replacing an oil or LPG boiler with a heat pump in Westbury-on-Trym
Here are typical prices for replacing an oil or LPG boiler with a heat pump in Bristol, 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 | £9,700–£12,750 | £700–£3,750 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,700–£13,750 | £1,700–£4,750 |
| 3 bedroom semi or small detached | 6–9 kW | £12,250–£15,800 | £3,250–£6,800 |
| 4 bedroom detached | 8–12 kW | £14,300–£18,350 | £5,300–£9,350 |
| 5+ bedroom or larger older house | 11–16 kW | £16,850–£22,950 | £7,850–£13,950 |
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.
Short winter days in Westbury-on-Trym and what they mean
Westbury-on-Trym sees roughly 7 hours 50 minutes of daylight in late December against 16 hours 38 minutes in June. Milder southern winters suit heat pumps well, though the system is still sized for a cold snap rather than an average day.
What happens after you enquire in Westbury-on-Trym?
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Westbury-on-Trym; 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 Westbury-on-Trym: questions
What size heat pump does a Westbury-on-Trym 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 Westbury-on-Trym home.
How soon can you survey a home in Westbury-on-Trym?
Survey dates depend on how busy installers are in Bristol. We offer the next available dates when you enquire and confirm them in writing.
Can you service a heat pump in Westbury-on-Trym that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Westbury-on-Trym, whoever fitted them. Tell us the make and model when you book.
Do I have to remove my oil tank?
Not always, but it should be emptied and made safe. A tank in good condition can be drained, cleaned and left in place, though most owners prefer to have it taken away to free up space. Old or damaged tanks are usually removed. Your quote says which option is included, and any remaining oil and sludge is disposed of properly.
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.