- Area
- Mid Glamorgan
- Postcode district
- CF83
- Nation
- Wales
- Guide price
- From £9,500 inc VAT
- Survey
- Free for installation enquiries
Before you book: replacing an oil or LPG boiler with a heat pump in Caerphilly
Most homes can run on a heat pump if the system is designed properly, and Caerphilly is no different. The key is matching the heat pump and radiators to the home's heat loss.
Bungalows and detached houses near Caerphilly running on LPG can move to a heat pump, with the tank collected by the supplier. If your home near Caerphilly 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
- Detached houses and bungalows with garden space for the unit
- Rural and village homes off the mains gas grid
What's included
- Oil tank draining and removal or making safe, as set out in your quote
- MCS certificate and grant application in England and Wales where eligible
- Removal of the oil or LPG boiler and flue
- Help arranging LPG tank collection with your supplier
- Outdoor unit, heat pump cylinder, controls and radiator changes
Owners across Mid Glamorgan can have oil tank removal arranged alongside a heat pump installation in Caerphilly.
Grants and rules for heat pumps in Wales
Homes in Caerphilly can use the Boiler Upgrade Scheme, which applies in Wales as well as England: £7,500 towards an air source heat pump, or £9,000 when it replaces oil or LPG heating for installations from 21 July 2026 to 31 March 2027. The MCS-certified installer named in your quote applies and deducts the grant.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Wales has its own permitted development rules for air source heat pumps, so we check what applies to your property, including listed building and conservation-area constraints, at the survey.
What to budget for replacing an oil or LPG boiler with a heat pump in Caerphilly
The ranges below are typical installed prices for homes in Mid Glamorgan, including VAT. A survey sets the exact figure, because two similar-looking houses in Caerphilly can need quite different radiators and pipework.
| Home | Typical size | Installed guide price | After £9,000 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,500–£12,500 | £500–£3,500 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,500–£13,500 | £1,500–£4,500 |
| 3 bedroom semi or small detached | 6–9 kW | £12,000–£15,500 | £3,000–£6,500 |
| 4 bedroom detached | 8–12 kW | £14,000–£18,000 | £5,000–£9,000 |
| 5+ bedroom or larger older house | 11–16 kW | £16,500–£22,500 | £7,500–£13,500 |
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 Caerphilly?
Caerphilly sees roughly 7 hours 49 minutes of daylight in late December against 16 hours 39 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 Caerphilly?
- Start online with a guide price or call us.
- A home survey in Caerphilly 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 Caerphilly: questions
How long does a heat pump survey take in Caerphilly?
A home survey in Caerphilly 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 Caerphilly 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 Caerphilly home.
Can you service a heat pump in Caerphilly that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Caerphilly, whoever fitted them. Tell us the make and model when you book.
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.