- Area
- Lanarkshire
- Postcode district
- G67
- Nation
- Scotland
- Guide price
- From £250 inc VAT
- Survey
- Free for installation enquiries
Before you book: heat pump radiator upgrades in Cumbernauld
The question for a Cumbernauld home is rarely whether a heat pump can work, but what needs to change to make it work well: radiator sizes, pipework, controls and where the unit goes.
Radiator fitting in Cumbernauld is scheduled with your heat pump installation so the system is drained only once. Many older houses in Cumbernauld 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.
- Homes switching from a gas, oil or LPG boiler to a heat pump
- Extensions and loft conversions with large areas of glazing
- Rooms with little wall space, where a fan-assisted radiator fits better
What's included
- A radiator schedule showing which radiators stay, which change and their outputs
- Draining, refilling, cleaning and inhibitor treatment of the heating system
- Making good around brackets and pipe routes, with any decorating agreed in your quote
- Room-by-room heat loss figures for every heated room
- Balancing every radiator so each room heats evenly
In Cumbernauld, 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 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 Cumbernauld home, apply and receive the written offer before the installation date is fixed.
There is no VAT on installing a heat pump anywhere in the UK, Scotland included, until 31 March 2027. Scottish permitted development rules and building standards apply, and the surveyor checks the unit position and any listed or conservation-area constraints.
Guide prices for heat pump radiator upgrades in Cumbernauld
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 Cumbernauld 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.
Designing for Cumbernauld's winters
Cumbernauld has about 6 hours 57 minutes of daylight at midwinter against 17 hours 36 minutes in midsummer. Heat pumps are designed to keep working well below freezing, but the design temperature for the survey is set for local conditions, not an average day.
From survey to switch-on in Cumbernauld
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Cumbernauld; 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 Cumbernauld: questions
Can you service a heat pump in Cumbernauld that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Cumbernauld, whoever fitted them. Tell us the make and model when you book.
How soon can you survey a home in Cumbernauld?
Survey dates depend on how busy installers are in Lanarkshire. We offer the next available dates when you enquire and confirm them in writing.
How long does a heat pump survey take in Cumbernauld?
A home survey in Cumbernauld 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 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 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.

