Where a radiator falls short, the usual fix is a larger panel radiator, a double or triple-panel model in the same space, or a fan-assisted radiator where wall space is tight. We also check the pipework feeding each radiator, because narrow pipes can restrict the higher water flow rates heat pumps rely on. Everything is listed in a radiator schedule in your quote, so you can see exactly which radiators change and why.
Radiator fitting in Clwyd is scheduled with your heat pump installation so the system is drained only once. Extensions and kitchen-diners around Clwyd with large glazed areas get their own radiator calculation. Many older houses in Clwyd still have their original single-panel radiators, so the survey checks each one against the room it heats.
Who it suits
- Homeowners who want the lowest practical flow temperature for efficiency
- Homes switching from a gas, oil or LPG boiler to a heat pump
- Rooms with little wall space, where a fan-assisted radiator fits better
- Extensions and loft conversions with large areas of glazing
Grants and rules for heat pumps in Wales
In Wales the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027; £2,500 for air-to-air). The MCS-certified installer named in your quote applies to Ofgem for you, and the grant comes off your quote.
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.
Heat pump radiators prices in Clwyd
The ranges below are typical installed prices for homes in Clwyd, including VAT. A survey sets the exact figure, because two similar-looking houses in Clwyd can need quite different radiators and pipework.
| Work | Guide price |
|---|---|
| Replacement radiator, sized for a heat pump (each, fitted) | £250–£450 |
| Upgrade of about 10 radiators | £2,000–£5,000 |
| Pipework upgrade (e.g. microbore to larger bore) | £1,500–£3,500 |
Installed, inc VAT. The survey lists which radiators need changing.
Towns we cover in Clwyd
We cover 16 towns in Clwyd for heat pump radiator upgrades. Each links to local guide prices and the grant position for Wales.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Wrexham | LL13 | Rhosllannerchrugog | 7 h 33 min |
| Buckley | CH7 | Mold | 7 h 32 min |
| Deeside | CH5 | Connah's Quay | 7 h 31 min |
| Colwyn Bay | LL29 | Conwy | 7 h 30 min |
| Flint | CH6 | Connah's Quay | 7 h 31 min |
| Rhyl | LL18 | Prestatyn | 7 h 30 min |
| Rhosllannerchrugog | LL14 | Wrexham | 7 h 33 min |
| Prestatyn | LL19 | Rhyl | 7 h 30 min |
| Llandudno | LL30 | Conwy | 7 h 30 min |
| Abergele | LL22 | Rhyl | 7 h 30 min |
| Connah's Quay | CH5 | Deeside | 7 h 31 min |
| Conwy | LL31 | Llandudno | 7 h 30 min |
| Denbigh | LL16 | Ruthin | 7 h 32 min |
| Llangollen | LL20 | Rhosllannerchrugog | 7 h 34 min |
| Mold | CH7 | Buckley | 7 h 32 min |
| Ruthin | LL15 | Denbigh | 7 h 32 min |
Heat pump radiator upgrades questions
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.
Can I keep my radiators and just run the heat pump hotter?
You can, but it usually costs more to run. Every extra degree of flow temperature reduces a heat pump's efficiency, so a system designed at 55°C uses noticeably more electricity than one at 45°C for the same heat. A few well-chosen radiator upgrades often let the whole house run cooler, which is the better long-term trade.
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.
Do I need new radiators for a heat pump?
Not necessarily: many homes keep most of their radiators and replace only a few. The heat loss survey checks each room against its existing radiator at the planned flow temperature. Rooms with large windows, high ceilings or extensions are the usual candidates for an upgrade, while bedrooms often need no change. Your radiator schedule lists every decision.