- Area
- Dumfries and Galloway
- Postcode district
- DG7
- Nation
- Scotland
- Guide price
- From £260 inc VAT
- Survey
- Free for installation enquiries
Before you book: heat pump radiator upgrades in Castle Douglas
Homes around Castle Douglas range from older terraces to newer estates, and each needs a different design. That is why we survey before we quote.
In Castle Douglas, bay-windowed front rooms are often the rooms that need a larger radiator when moving to a heat pump. Many older houses in Castle Douglas 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.
- 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
What's included
- A radiator schedule showing which radiators stay, which change and their outputs
- Room-by-room heat loss figures for every heated room
- Balancing every radiator so each room heats evenly
- Draining, refilling, cleaning and inhibitor treatment of the heating system
- Making good around brackets and pipe routes, with any decorating agreed in your quote
Radiator fitting in Castle Douglas is scheduled with your heat pump installation so the system is drained only once.
Grants and rules for heat pumps in Scotland
The Boiler Upgrade Scheme does not apply in Scotland. Instead, homeowners in Castle Douglas can apply to Home Energy Scotland for a grant of up to £7,500 towards a heat pump, with up to £1,500 more for eligible rural and island homes, plus an optional interest-free loan of up to £7,500. You need a written funding offer before any work starts.
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 Castle Douglas property at survey.
Heat pump radiators costs around Castle Douglas
Guide prices for Castle Douglas and the rest of Dumfries and Galloway are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.
| Work | Guide price |
|---|---|
| Replacement radiator, sized for a heat pump (each, fitted) | £260–£460 |
| Upgrade of about 10 radiators | £2,050–£5,100 |
| Pipework upgrade (e.g. microbore to larger bore) | £1,550–£3,550 |
Installed, inc VAT. The survey lists which radiators need changing.
Designing for Castle Douglas's winters
Castle Douglas sees roughly 7 hours 11 minutes of daylight in December and 17 hours 22 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.
What happens after you enquire in Castle Douglas?
- Start online with a guide price or call us.
- A home survey in Castle Douglas gives us the room-by-room heat loss.
- Your written quote sets out the design, the price and the grant position where you live.
- Installation is booked for dates that suit you; most homes take 2–4 days on site.
- After commissioning you get a handover of the controls and settings, plus the certificates.
Heat pump radiator upgrades in Castle Douglas: questions
What size heat pump does a Castle Douglas home need?
It depends on the heat loss, not the postcode. As a rough guide, a 3 bedroom semi often needs 6–9 kW, but the room-by-room survey sets the actual size for your Castle Douglas home.
Do you cover Dalbeattie as well as Castle Douglas?
Yes. We arrange surveys and installation in Dalbeattie, which is about 4 miles east of Castle Douglas, and across Dumfries and Galloway.
Can you service a heat pump in Castle Douglas that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Castle Douglas, whoever fitted them. Tell us the make and model when you book.
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.
Are fan-assisted radiators noisy?
Fan-assisted radiators make a low, steady fan sound when running at higher output, and many have quieter settings for bedrooms at night. They are useful where wall space is short, such as a kitchen with few clear walls. They need a small electrical supply, which we plan into the installation if you choose them.