- Area
- Dumfries and Galloway
- Postcode district
- DG7
- Nation
- Scotland
- Nearby
- Dalbeattie, Kirkcudbright, Dumfries
We cover Castle Douglas and nearby Dalbeattie, Kirkcudbright and the rest of Dumfries and Galloway. A heat pump is a whole-system change, so the survey looks at radiators, pipework, the hot water cylinder and the best spot for the outdoor unit.
Heat pump services in Castle Douglas
All services in Castle Douglas:
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.
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.
Heat pump guide prices in Castle Douglas
These are guide prices for Dumfries and Galloway, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| Home | Typical size | Installed guide price |
|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,700–£12,750 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,700–£13,750 |
| 3 bedroom semi or small detached | 6–9 kW | £12,250–£15,800 |
| 4 bedroom detached | 8–12 kW | £14,300–£18,350 |
| 5+ bedroom or larger older house | 11–16 kW | £16,850–£22,950 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning. In Scotland, Home Energy Scotland grants of up to £7,500 and interest-free loans may reduce the cost.
How long is the heating season in Castle Douglas?
On the shortest day Castle Douglas gets only about 7 hours 11 minutes of daylight and the noon sun sits around 12° above the horizon. Northern winters tend to be longer, so a well-designed, efficient system matters more here because it runs for more of the year.
Heat pumps 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.
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 long does installation take in Castle Douglas?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Castle Douglas home states the expected time.
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.

