Replacing electric heating with a heat pump means taking out storage heaters, panel heaters or an electric boiler and installing an air-to-water heat pump that heats water for radiators or underfloor heating and a hot water cylinder. If you already have an electric boiler and radiators, the change is similar to a boiler swap. If you have storage or panel heaters, there is no wet system yet, so radiators and pipework need to be installed throughout.
Owners across County Londonderry moving off storage heaters can arrange a survey in County Londonderry that compares running costs on their real tariff. Flats in County Londonderry heated by storage heaters can often switch, subject to the freeholder's consent and a workable outdoor position. Where a home in County Londonderry has an airing cupboard, the immersion cylinder can often be swapped for a heat pump cylinder in the same space.
Who it suits
- Owners planning redecoration or other building work at the same time
- Bungalows and houses with suspended timber floors that make pipe runs easier
- Flats with a suitable wall, balcony or ground-floor space for the unit
- Properties with an electric boiler and existing radiators
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 County Londonderry.
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 property at survey.
Electric heating to heat pump prices in County Londonderry
These are guide prices for County Londonderry, 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 |
|---|---|---|
| 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.
Towns we cover in County Londonderry
We cover 7 towns in County Londonderry for replacing electric heating with a heat pump. Each links to local guide prices and the grant position for Northern Ireland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Derry/Londonderry | BT48 | Limavady | 7 h 10 min |
| Coleraine | BT52 | Portstewart | 7 h 08 min |
| Dungiven | BT47 | Limavady | 7 h 11 min |
| Limavady | BT49 | Dungiven | 7 h 09 min |
| Maghera | BT46 | Magherafelt | 7 h 12 min |
| Magherafelt | BT45 | Maghera | 7 h 13 min |
| Portstewart | BT55 | Coleraine | 7 h 08 min |
Replacing electric heating with a heat pump questions
How disruptive is fitting radiators in a home that has none?
More disruptive than a boiler swap, but planned. Floorboards are lifted to run pipes, some holes are drilled through walls and radiators are hung room by room. Rooms are worked on in a set order so you can keep living at home, and holes are made good, while redecoration is usually yours. The programme in your quote shows how long each stage typically takes.
Can I replace storage heaters with a heat pump?
Yes. Storage heaters are removed and replaced with an air-to-water heat pump connected to new radiators or underfloor heating and a hot water cylinder. Because there is no existing wet system, pipework has to be run to each room, so the job is larger than a boiler swap. The survey plans pipe routes and radiator sizes before you receive a written quote.
Do I qualify for the Boiler Upgrade Scheme if I have electric heating?
In England and Wales, owners of existing homes replacing electric heating can qualify, provided the heat pump meets the home's full heating and hot water needs and the other scheme conditions are met. The grant is £7,500 for an air-to-water system. The scheme does not cover Scotland or Northern Ireland; Scotland has separate Home Energy Scotland funding.
Can I keep my electric immersion cylinder?
Usually not for heating by the heat pump, because a standard immersion cylinder has no coil, or one too small to take heat at low flow temperatures. A heat pump cylinder replaces it, often in the same cupboard, and keeps an immersion element as backup. If you choose an air-to-air system instead, which does not make hot water, the existing cylinder stays in use.

