- Area
- County Londonderry
- Postcode district
- BT55
- Nation
- Northern Ireland
- Guide price
- From £9,200 inc VAT
- Survey
- Free for installation enquiries
Oil and LPG boiler replacement for Portstewart homes
Homes around Portstewart range from older terraces to newer estates, and each needs a different design. That is why we survey before we quote.
Owners across County Londonderry can have oil tank removal arranged alongside a heat pump installation in Portstewart. Rural properties near Portstewart usually have garden space for the outdoor unit, sited away from windows and sheltered where possible.
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.
- Owners tired of fuel deliveries and tank maintenance
- Older oil boilers nearing the end of their life
- Rural and village homes off the mains gas grid
What's included
- Help arranging LPG tank collection with your supplier
- Network operator notification and electrical connection
- Outdoor unit, heat pump cylinder, controls and radiator changes
- Free survey with a detailed heat loss calculation for older construction
- Removal of the oil or LPG boiler and flue
Cottages and farmhouses in and around Portstewart often have solid walls, so the survey looks closely at construction and draughts.
Grants and rules for heat pumps in Northern Ireland
Northern Ireland does not have a dedicated heat pump grant for homeowners at present, and the Boiler Upgrade Scheme does not apply here. Heat pumps have sometimes been funded through the Northern Ireland Sustainable Energy Programme, so it is worth checking what is open when you enquire about a home in Portstewart.
Installing heat pumps has been zero-rated for VAT in Northern Ireland since 1 May 2023, in line with the rest of the UK, until 31 March 2027. Northern Ireland has its own permitted development rules and building regulations, and we confirm what applies to your Portstewart property at survey.
Oil and LPG boiler replacement costs around Portstewart
Guide prices for Portstewart and the rest of County Londonderry 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 |
|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,200–£12,150 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,200–£13,100 |
| 3 bedroom semi or small detached | 6–9 kW | £11,650–£15,050 |
| 4 bedroom detached | 8–12 kW | £13,600–£17,450 |
| 5+ bedroom or larger older house | 11–16 kW | £16,000–£21,850 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning. No dedicated heat pump grant currently applies in Northern Ireland.
Designing for Portstewart's winters
Portstewart sees roughly 7 hours 08 minutes of daylight in December and 17 hours 25 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
From survey to switch-on in Portstewart
- Start online with a guide price or call us.
- A home survey in Portstewart 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 Portstewart: questions
What size heat pump does a Portstewart 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 Portstewart home.
Do I need new radiators for a heat pump in Portstewart?
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 Portstewart home gives a room-by-room list.
Can you service a heat pump in Portstewart that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Portstewart, whoever fitted them. Tell us the make and model when you book.
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.
Can a heat pump cope with an exposed rural spot?
Yes. Air source heat pumps are designed to keep working well below freezing, and they periodically defrost, giving off a little vapour, which is normal. In exposed locations the installer chooses a sheltered position where possible, raises the unit to clear snow and let defrost water drain, and sizes the system for the local winter design temperature used in the heat loss calculation.