A heat pump radiator upgrade means replacing only the radiators that are too small to heat their room at the lower water temperatures a heat pump runs at. A gas boiler usually sends water to radiators at 60–75°C, while a well-designed heat pump system typically runs at around 35–50°C. Cooler water gives out less heat from the same radiator, so some rooms need more radiator surface to stay comfortable.
For period homes in Lanarkshire and across Lanarkshire, column radiators can keep the character of a room while giving enough heat at low temperatures. Extensions and kitchen-diners around Lanarkshire with large glazed areas get their own radiator calculation. We plan radiator upgrades in Lanarkshire so floorboards are lifted only where pipework genuinely needs changing.
Who it suits
- Rooms with little wall space, where a fan-assisted radiator fits better
- Extensions and loft conversions with large areas of glazing
- Rooms that already feel slow to heat, such as bay-windowed living rooms
- Homes switching from a gas, oil or LPG boiler to a heat pump
Grants and rules for heat pumps in Scotland
In Scotland, heat pump funding comes through Home Energy Scotland rather than the Boiler Upgrade Scheme: a grant of up to £7,500 (up to £1,500 extra for eligible rural and island homes) and an optional interest-free loan of up to £7,500. For a home in Lanarkshire, apply and receive the written offer before the installation date is fixed.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Scotland has its own permitted development rules for air source heat pumps and its own building standards, so we confirm what applies to your property at survey.
Heat pump radiators prices in Lanarkshire
The ranges below are typical installed prices for homes in Lanarkshire, including VAT. A survey sets the exact figure, because two similar-looking houses in Lanarkshire 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 Lanarkshire
We cover 13 towns in Lanarkshire for heat pump radiator upgrades. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| East Kilbride | G74 | Cambuslang | 7 h 00 min |
| Hamilton | ML3 | Motherwell | 7 h 00 min |
| Cumbernauld | G67 | Airdrie | 6 h 57 min |
| Coatbridge | ML5 | Airdrie | 6 h 59 min |
| Airdrie | ML6 | Coatbridge | 6 h 59 min |
| Motherwell | ML1 | Bellshill | 7 h 00 min |
| Rutherglen | G73 | Cambuslang | 6 h 59 min |
| Cambuslang | G73 | Rutherglen | 6 h 59 min |
| Wishaw | ML2 | Motherwell | 7 h 00 min |
| Bellshill | ML4 | Motherwell | 6 h 59 min |
| Carluke | ML8 | Wishaw | 7 h 00 min |
| Lanark | ML11 | Carluke | 7 h 01 min |
| Strathaven | ML10 | Hamilton | 7 h 01 min |
Heat pump radiator upgrades questions
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.
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.
Will new radiators be much bigger than my old ones?
Sometimes, but not always. Swapping a single-panel radiator for a double or triple-panel model of the same height and width can raise output substantially, adding only depth from the wall. Where that is not enough, a longer or taller radiator, or a second radiator in the room, may be needed. We agree sizes and positions with you before anything is ordered.
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.