- Area
- West Glamorgan
- Postcode district
- SA1
- Nation
- Wales
- Guide price
- From £9,500 inc VAT
- Survey
- Free for installation enquiries
Oil and LPG boiler replacement for Swansea homes
Most homes can run on a heat pump if the system is designed properly, and Swansea is no different. The key is matching the heat pump and radiators to the home's heat loss.
If your home near Swansea is off the mains gas grid, a heat pump removes the need for oil or LPG deliveries. Owners across West Glamorgan can have oil tank removal arranged alongside a heat pump installation in Swansea.
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
- Older oil boilers nearing the end of their life
- Eligible homes in England and Wales within the higher grant window
What's included
- Removal of the oil or LPG boiler and flue
- Network operator notification and electrical connection
- 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
- MCS certificate and grant application in England and Wales where eligible
Bungalows and detached houses near Swansea running on LPG can move to a heat pump, with the tank collected by the supplier.
Grants and rules for heat pumps in Wales
Homes in Swansea 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.
There is no VAT on installing a heat pump anywhere in the UK, Wales included, until 31 March 2027. Planning rules for heat pumps in Wales are set by the Welsh Government and differ from England's, so the surveyor checks the unit position against them.
Guide prices for replacing an oil or LPG boiler with a heat pump in Swansea
These are guide prices for West Glamorgan, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| 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.
Designing for Swansea's winters
On the shortest day Swansea gets about 7 hours 48 minutes of daylight, with the noon sun around 15° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.
From survey to switch-on in Swansea
- Start online with a guide price or call us.
- A home survey in Swansea 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 Swansea: questions
Can you service a heat pump in Swansea that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Swansea, whoever fitted them. Tell us the make and model when you book.
How long does installation take in Swansea?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Swansea home states the expected time.
What size heat pump does a Swansea 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 Swansea home.
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.
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.