- Area
- County Londonderry
- Postcode district
- BT55
- Nation
- Northern Ireland
- Guide price
- From £240 inc VAT
- Survey
- Free for installation enquiries
Heat pump radiators for Portstewart homes
In Portstewart, 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.
For period homes in Portstewart and across County Londonderry, column radiators can keep the character of a room while giving enough heat at low temperatures. Many older houses in Portstewart still have their original single-panel radiators, so the survey checks each one against the room it heats.
We size each radiator to your room-by-room heat loss so a heat pump can heat your home at a low, efficient flow temperature.
- Extensions and loft conversions with large areas of glazing
- Rooms with little wall space, where a fan-assisted radiator fits better
- Homeowners who want the lowest practical flow temperature for efficiency
What's included
- Balancing every radiator so each room heats evenly
- Pipework checks and any agreed pipe upgrades
- Room-by-room heat loss figures for every heated room
- Supply and fitting of new radiators, valves and brackets
- Making good around brackets and pipe routes, with any decorating agreed in your quote
In Portstewart, bay-windowed front rooms are often the rooms that need a larger radiator when moving to a heat pump.
Grants and rules for heat pumps in Northern Ireland
The Boiler Upgrade Scheme covers England and Wales only, and there is currently no dedicated heat pump grant for homeowners in Northern Ireland. Our quote for a Portstewart home is therefore shown without a grant deduction; if support becomes available we will tell you how it applies.
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.
What to budget for heat pump radiator upgrades in Portstewart
Here are typical prices for heat pump radiator upgrades in County Londonderry, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.
| Work | Guide price |
|---|---|
| Replacement radiator, sized for a heat pump (each, fitted) | £240–£440 |
| Upgrade of about 10 radiators | £1,950–£4,850 |
| Pipework upgrade (e.g. microbore to larger bore) | £1,450–£3,400 |
Installed, inc VAT. The survey lists which radiators need changing.
Short winter days in Portstewart and what they mean
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
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Portstewart; 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.
Heat pump radiator upgrades in Portstewart: questions
Where would the outdoor unit go on a Portstewart 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 Portstewart home.
How long does a heat pump survey take in Portstewart?
A home survey in Portstewart 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.
How long does installation take in Portstewart?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Portstewart home states the expected time.
Can radiators be changed without draining the whole system?
Radiator changes normally mean draining the heating system, which is why they are usually done as part of the heat pump installation. The system is then refilled, flushed, treated with inhibitor and balanced. Doing the radiators at the same time avoids draining twice and means the new radiators are commissioned with the heat pump.
How much does a heat pump radiator cost?
A replacement radiator sized for a heat pump has a guide price of £250–£450 each, installed and including VAT. Upgrading about ten radiators in a typical home has a guide price of £2,000–£5,000. The final price is fixed in your written quote after the survey, once the radiator schedule shows exactly which radiators change.

