That makes it a practical fit for homes and spaces without a wet heating system: flats on storage or panel heaters, extensions and garden rooms, open-plan living areas, and homes where installing radiators and pipework would be very disruptive. One outdoor unit can serve a single indoor unit, or several rooms through a multi-split system, with each room controlled separately.
Flats in the Scottish Borders on storage or panel heaters can often switch to air-to-air without fitting radiators or pipework. Extensions and garden rooms in the Scottish Borders that are hard to connect to the main heating can have their own air-to-air unit. For terraced homes in the Scottish Borders, the outdoor unit can often sit in a rear yard with tidy pipe runs to each room.
Who it suits
- Extensions, conservatories and garden rooms
- Homes where fitting radiators and pipework would be very disruptive
- Flats and apartments with storage or panel heaters
- Households that already have, or will add, a separate source of hot water
Grants and rules for heat pumps in Scotland
The Boiler Upgrade Scheme does not apply in Scotland. Instead, homeowners in the Scottish Borders 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.
Air-to-air heat pumps prices in the Scottish Borders
These are guide prices for the Scottish Borders, 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.
| System | Installed guide price |
|---|---|
| Air-to-air heat pump, 1–2 rooms | £2,450–£5,100 |
| Air-to-air heat pump, multi-room 3–4 bedroom home | £4,100–£8,150 |
Installed, inc VAT. Air-to-air systems heat (and can cool) rooms but do not provide hot water.
Towns we cover in the Scottish Borders
We cover 8 towns in the Scottish Borders for air-to-air heat pumps. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Duns | TD11 | Eyemouth | 7 h 00 min |
| Eyemouth | TD14 | Duns | 6 h 58 min |
| Galashiels | TD1 | Selkirk | 7 h 02 min |
| Hawick | TD9 | Selkirk | 7 h 04 min |
| Jedburgh | TD8 | Kelso | 7 h 04 min |
| Kelso | TD5 | Jedburgh | 7 h 02 min |
| Peebles | EH45 | Penicuik | 7 h 01 min |
| Selkirk | TD7 | Galashiels | 7 h 03 min |
Air-to-air heat pumps questions
How do I look after an air-to-air system?
Clean the indoor unit filters regularly, typically every few weeks during heavy use and following the manufacturer's guidance, and keep the outdoor unit clear of leaves and snow. Annual servicing is recommended and is often a condition of the manufacturer's warranty. Any work on the refrigerant circuit must be done by an F-gas certified engineer.
Are air-to-air heat pumps suitable for flats?
Often, yes. They need no radiators, pipework or cylinder, so they suit flats heated by storage or panel heaters. You need a position for the outdoor unit, such as a balcony, wall bracket or ground-floor yard, and leaseholders normally need the freeholder's or management company's consent. Planning rules for flats differ by nation, so we check what applies at survey.
How much sound do the indoor units make?
Indoor units are designed to run quietly, with a fan you will hear most when heating or cooling at full output. Lower fan settings and night modes reduce sound in bedrooms. Siting matters for the outdoor unit too: it needs airflow and a position that passes the MCS noise assessment. Ask to see the sound levels of the proposed units at survey.
Is there a grant for air-to-air heat pumps?
In England and Wales, yes: the Boiler Upgrade Scheme includes a grant of £2,500 for air-to-air heat pumps in homes, from 28 April 2026. The MCS-certified installer applies to Ofgem and deducts it from your quote, subject to the scheme's conditions. The scheme does not cover Scotland or Northern Ireland; in Scotland, Home Energy Scotland has its own rules.